日本トライボロジー学会学会指定研究会   委員  

2014.6   

日本トライボロジー学会第2種研究会固体潤滑研究会   運営委員  

2011.6   

日本トライボロジー学会運営委員会   運営委員会委員  

2010.6   

砥粒加工学会論文査読委員会   査読委員  

2016.4 - 2017.3   

日本トライボロジー学会トライボロジー会議秋盛岡実行委員会   実行委員  

2014.6 - 2015.5   

日本トライボロジー学会広報情報化委員会   委員  

2014.6 - 2016.5   

日本トライボロジー学会トライボロジー会議春東京実行委員会   実行委員  

2013.6 - 2016.5   

日本トライボロジー学会第2種研究会固体潤滑研究会代表幹事   代表幹事  

2012.6 - 2015.5   

日本トライボロジー学会校閲委員会幹事   代表幹事  

2012.6 - 2013.5   

日本トライボロジー学会校閲委員会   校閲委員会委員  

2011.6 - 2017.5   

日本トライボロジー学会秋の学校校長   校長  

2011.6 - 2012.5   

精密工学会2010名古屋秋季大会実行委員会   実行委員  

2009.4 - 2010.3   

日本トライボロジー学会編集委員会幹事   編集委員会代表幹事  

2008.6 - 2009.5   

日本トライボロジー学会トライボロジー会議2008秋名古屋実行委員会   実行委員  

2008.6 - 2009.5   

日本トライボロジー学会編集委員会   編集委員  

2007.6 - 2010.5   

日本機械学会機素潤滑設計部門広報委員会   広報委員  

2007.4 - 2008.3   

Award of the research fund for international young scientists

2010.7   National Natural Science Foundation of China  

Viking of Tribology award

2011.10   Uppsala University, Ångström Tribomaterials Group  

IEEE Best Paper Award in 2013 international symposium on Micro-NanoMechatronics and Human Science (MHS2013)

2013.11   Micro-NanoMechatronics and Human Science (MHS2013)  

T. Tokoroyama

Long-term low-friction of Ti-overcoated and-doped DLCs: Robustly developed carbonous transfer layer with titanium Reviewed International coauthorship

Kim, JI; Lee, WY; Tokoroyama, T; Umehara, N

CARBON   Vol. 204   page： 268 - 283   2023.2

The Tribological Property of a-C:H Coating with Tribolayer by Additive Having Glycerol and Phosphate Oxide Structure Reviewed

Tokoroyama, T; Tanaka, K; Kani, T; Murashima, M; Lee, WY; Umehara, N; Oshio, T; Yagishita, K

TRIBOLOGY LETTERS   Vol. 70 ( 4 )   2022.12

Tribological Property of ta-CNx:Ta Deposited via Ion Beam Assisted-Filtered Arc Deposition Reviewed

Tokoroyama, T; Tagami, Y; Murashima, M; Lee, WY; Umehara, N; Kousaka, H

TRIBOLOGY INTERNATIONAL   Vol. 168   2022.4

Wear acceleration of a-C:H coatings by molybdenum-derived particles: Mixing and temperature effects Reviewed

Kassim, KAM; Tokoroyama, T; Murashima, M; Lee, WY; Umehara, N; Mustafa, MMB

TRIBOLOGY INTERNATIONAL   Vol. 159   2021.7

Evaluation of Mechanical Characteristics of Tribofilm Formed on the Surface of Metal Material Due to Friction under Lubrication with Automatic Transmission Fluid Reviewed

Tokoroyama, T; Nishimoto, T; Murakami, Y; Honda, A; Mitsui, H; Terai, Y; Murashima, M; Lee, WY; Umehara, N

TRIBOLOGY ONLINE   Vol. 16 ( 4 ) page： 255 - 262   2021

The Tribological Properties of Hydrogenated DLC Coating Lubrication with Additive Having Glycerol and Phosphonate Structure Reviewed

Kani, T; Tokoroyama, T; Umehara, N; Murashima, M; Lee, WY; Yagishita, K

TRIBOLOGY ONLINE   Vol. 16 ( 4 ) page： 263 - 270   2021

The wear classification of MoDTC-derived particles on silicon and hydrogenated diamond-like carbon at room temperature Reviewed

Kassim, KAM; Tokoroyama, T; Murashima, M; Umehara, N

TRIBOLOGY INTERNATIONAL   Vol. 147   2020.7

Effect of defects on wear behavior in ta-C coating prepared by filtered cathodic vacuum arc deposition Reviewed International coauthorship

Lee, WY; Jang, YJ; Tokoroyama, T; Murashima, M; Umehara, N

DIAMOND AND RELATED MATERIALS   Vol. 105   2020.5

The Surface Enhanced Raman Scattering Analysis for Carbonaceous Coating by Using Au Nano-Particles Reviewed

Tokoroyama, T; Murashima, M; Umehara, N

TRIBOLOGY ONLINE   Vol. 15 ( 5 ) page： 300 - 308   2020

ベース油中ta-CNx膜の摩擦時反射分光分析その場観察による低摩擦メカニズムの解明 Reviewed

岡本竜也，梅原徳次，野老山貴行，村島基之

日本機械学会論文集   Vol. 85 ( 875 ) page： transjsme.19-00071   2019.7

Collecting micrometer-sized wear particles generated between DLC/DLC surfaces under boundary lubrication with electric field Reviewed

T. Tokoroyama, T. Kamiya, N.A.B.H. Ahmed, N. Umehara

JSME Mechanical Engineering Letters   Vol. 4   page： 18-00089   2018.12

境界潤滑条件における模擬摩耗粒子の摩擦面その場観察 Reviewed

千葉翔悟，伊神汰一，野老山貴行

材料試験技術協会論文集   Vol. 63 ( 1 ) page： 17-21   2018.1

分離形熱サイフォンを用いた血液凝固付着抑制電気メスの開発 Reviewed

野老山貴行，大須賀未都，梅原徳次，上坂裕之

日本機械学会論文集   Vol. 83 ( 845 ) page： 16-00123   2017.1

往復式及び回転式シェーバーによる人工毛切断挙動観察 Reviewed

野老山貴行，中西直哉，梅原徳次

日本機械学会論文集   Vol. 82 ( 844 ) page： 16-00187   2016.12

Ultra-low friction properties of carbon nitride tantalum coatings in the atmosphere Reviewed

T. Tokoroyama, T. Hattori, N. Umehara, H. Kousaka, K. Manabe, M. Kishi, Y. Fuwa

Tribology International   Vol. 103   page： 388-393   2016.11

Effect of Texturing on Friction Properties of CNx Coating Layer under Oil Lubrication with Imitation Wear Debris Reviewed

Takayuki TOKOROYAMA, Tomoyo KANEKO, Yosuke TSUKIYAMA, Noritsugu UMEHARA, Tetsuya SATO and Tadashi SUZUKI

  Vol. 79 ( 806 ) page： 3895 - 3903   2013.10

Influence of UV irradiation for low frictional performance of CNx coatings Reviewed International coauthorship

T. Tokoroyama, M. Kamiya, N. UMEHARA, C. Wang, D.F. Diao

Lubrication Science   Vol. 24 ( 3 ) page： 129- - 139   2012.4

Development of a Radio Knife Suppressing the Adhesion of Coagulated Blood Reviewed

Yuya Nakashima, Noritsugu Umehara, Takayuki Tokoroyama and Yoichi Akagami

  Vol. 78 ( 786 ) page： 605-614   2012.2

The influence of interlayer for frictional property and adhesion of IBAD CNx coating Reviewed

M. Wakayama, Y. Tsukiyama, T. Tokoroyama, H. Kousaka, N. Umehara, M. Wang and T. Toihara

  Vol. 77 ( 781 ) page： 3502- - 3510   2011.10

Reduction of adhesion of coagulation to a radio knife tip with filled micro-grooves Reviewed

Yuya NAKASHIMA, Noritsugu UMEHARA, Takayuki TOKOROYAMA and Yoichi AKAGAMI

  Vol. 77 ( 779 ) page： 2916 - 2921   2011.7

The Effect of Ultraviolet Irradiation on Friction Coefficient of Diamond-Like Carbon Coating in Air Reviewed

Takayuki TOKOROYAMA*, Takuya HATANO, Noritsugu UMEHARA, and Yoshio FUWA

Journal of Japanese Society of Tribologists   Vol. 56 ( 4 ) page： 256 - 263   2011.4

The Effect of Substrate Temperature, Nitrogen Ionbeam Acceleration Voltage, and Deposition Rate on Hardness of Carbon Nitride Coating Reviewed

T. TOKOROYAMA, R. SAITO, N. UMEHARA and Y. FUWA

  Vol. 77 ( 775 ) page： 624 - 630   2011.3

窒素中で超低摩擦を発現するCNx膜の極表面層の機械的特性の評価 Reviewed

木村徳博，月山陽介，野老山貴行，梅原徳次

日本機械学会論文集（C編）   Vol. 76 ( 772 ) page： 3794 - 3799   2010.12

The Effect of Ultraviolet Irradiation on Friction Coefficient of Diamond-Like Carbon Coating in Air Reviewed

T. Tokoroyama, T. Hatano, N. Umehara, Y. Fuwa

  Vol. 76 ( 771 ) page： 3166 - 3171   2010.11

窒化炭素膜のトライボロジー特性に及ぼす紫外線照射の影響 Reviewed

野老山貴行，梅原徳次，神谷真人，不破良雄

トライボロジスト   Vol. 55 ( 9 ) page： 659 - 665   2010.9

The influence of micro-grooves for friction dependant on sliding velocity in slide bearing under oil lubrication Reviewed

Shotaro OZU, Takayuki TOKOROYAMA, Atsushi KORENAGA, Shinya SASAKI and Noritsugu UMEHARA

Transactions of the Japan Society of Mechanical Engineers, Series C   Vol. 75 ( 754 ) page： 1866 - 1871   2009.6

Superlow Friction Phenomena of Carbon Nitride Coatings Lubricated under 18 Carbon Atoms Unsaturated Fatty Acids Reviewed

Takayuki Tokoroyama, Noritsugu Umehara, Yuichiro Ogawa, Yoshio Fuwa

Journal of Japanese Society of Tribologists   Vol. 54 ( 6 ) page： 406 - 411   2009.6

Influence of the Carbon-Overcoat on CNx Coating for the Friction and Wear Properties Reviewed

Huaipeng WANG, Takayuki TOKOROYAMA, Noritsugu UMEHARA, and Yoshio FUWA

Transactions of the Japan Society of Mechanical Engineers, Series C   Vol. 75 ( 754 ) page： 1859 - 1865   2009.6

Superlow friction with CNx coating under oil lubrication Reviewed

Yuichiro Ogawa, Takayuki Tokoroyama, Noritsugu Umehara, Yoshio Fuwa

Transactions of the Japan Society of Mechanical Engineers, Series C   Vol. 75 ( 752 ) page： 1088 - 1093   2009.4

Control of friction and wear properties of CNx coatings with rising temperature in ambient air Reviewed

Yuya Yoshikawa, Takayuki Tokoroyama, Noritsugu Umehara

Transactions of the Japan Society of Mechanical Engineers, Series C   Vol. 74 ( 747 ) page： 2791 - 2796   2008.11

In Situ Analysis of the Tribochemical Reaction of CNx by FTIR Reviewed

Shingo Kanda, Takayuki Tokoroyama, Noritsugu Umehara, Yoshio Fuwa

Tribology Online   Vol. 3 ( 2 ) page： 100 - 104   2008.4

Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair Reviewed

T. Tokoroyama, Norhaswira MOHD, Noritsugu UMEHARA

Journal of Advanced Mechanical Design, Systems, and Manufacturing   Vol. 1 ( 5 ) page： 661 - 668   2007.11

Effect of Nitrogen atoms desorption on the friction of the CNx coating against Si3N4 ball in Nitrogen gas Reviewed

Takayuki Tokoroyama, Minoru Goto, Noritsugu Umehara, Takashi Nakamura, Fumihiro Honda

Tribology Letters   Vol. 22 ( 3 ) page： 215 - 220   2006.6

The effect of environmental gas on friction coefficient of CNx coatings and maximum concentration of O2 for the realization of ultra-low friction Reviewed

Takayuki Tokoroyama, Takashi Nakamura, Noritsugu Umehara, Hirotsugu Tomita, Yukinori Takenoshita

Journal of Japanese Society of Tribologists   Vol. 50 ( 9 ) page： 683 - 689   2005.9

Effect of surface roughness and transfer layer of mating ceramic parts for ultra low friction phenomena in sliding between CNx and ceramics Reviewed

Takayuki Tokoroyama, Noritsugu Umehara, Hirotsugu Tomita, Yukinori Takenoshita

Transactions of the Japan Society of Mechanical Engineers, Series C   Vol. 69 ( 686 ) page： 2824 - 2829   2003.10

Design of low-friction PVD coating systems with enganced running-in performance - carbon overcoats on TaC/aC Reviewed International coauthorship

H. Nyberg, T. Tokoroyama, U. Wiklund, S. Jacobson

Surface and Coatings Technology   Vol. 222   page： 48 - 54   2013.3

The Effect of Carbon Structure of DLC Coatings on Friction Characteristics of MoDTC-Derived Tribofilm by Using an In Situ Reflectance Spectroscopy Reviewed International coauthorship

Hashizume, N; Yamamoto, Y; Chen, C; Tokoroyama, T; Zhang, RX; Diao, DF; Umehara, N

TRIBOLOGY LETTERS   Vol. 72 ( 1 )   2024.3

Nitrogen-containing diamond-like carbon deposited on glass substrate via filtered cathodic vacuum arc with high-frequency pulsed DC substrate bias Reviewed International coauthorship

Kim, JI; Lee, WY; Tanaka, K; Tokoroyama, T; Murashima, M; Umehara, N

SURFACES AND INTERFACES   Vol. 44   2024.1

Creation of anti-frost micro-plastic texture surfaces enhancing thermal conductivity by carbon black containing in polyvinyl chloride Reviewed

Tokoroyama, T; Zhang, LY; Wu, WJ; Murashima, M; Umehara, N

JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING   Vol. 18 ( 3 )   2024

Influence of Defects in Graphene-Like Network of Diamond-Like Carbon on Silica Scale Adhesion Reviewed

Nakashima, Y; Umehara, N; Kousaka, H; Tokoroyama, T; Murashima, M; Murakami, K

TRIBOLOGY LETTERS   Vol. 71 ( 1 )   2023.2

Novel friction stabilization technology for surface damage conditions using machine learning Reviewed International coauthorship

Murashima, M; Yamada, T; Umehara, N; Tokoroyama, T; Lee, WY

TRIBOLOGY INTERNATIONAL   Vol. 180   2023.2

Carbon-based coatings for suppression of silica adhesion in geothermal power generation Reviewed International coauthorship

Nakashima, Y; Umehara, N; Kousaka, H; Tokoroyama, T; Murashima, M; Mori, D

TRIBOLOGY INTERNATIONAL   Vol. 177   2023.1

Tribo-chemical wear of various 3d-transition metals against DLC: Influence of tribo-oxidation and low-shear transferred layer Reviewed International coauthorship

Kim, JI; Tokoroyama, T; Murashima, M; Umehara, N; Lee, WY

TRIBOLOGY INTERNATIONAL   Vol. 177   2023.1

樹脂パッドと電界砥粒制御技術を適用した先進結晶基板への低ダメージ機械研磨技術 Reviewed

千葉翔悟，久住孝幸，赤上陽一，野老山貴行，村岡幹夫

砥粒加工学会誌   Vol. 64 ( 1 ) page： 32-38   2020.1

Investigating running-in behavior to understand wear behavior of ta-C coating with filtered cathodic vacuum arc deposition Reviewed

Lee Woo-Young, Tokoroyama Takayuki, Murashima Motoyuki, Umehara Noritsugu

JURNAL TRIBOLOGI   Vol. 23   page： 38 - 47   2019.12

Effect of Substrate Bias and Temperature on Friction and Wear Properties for ta-C Coating Prepared under Different Substrate Bias Voltages with Filtered Cathodic Vacuum Arc Deposition Reviewed

Lee Woo-Young, Tokoroyama Takayuki, Jang Young-Jun, Umehara Noritsugu

TRIBOLOGY ONLINE   Vol. 13 ( 5 ) page： 241-247   2018.10

潤滑油中におけるDLC膜同士の摩擦により発生した摩耗粒子の分析手法 Reviewed

大原健司，野老山貴行，上坂裕之，梅原徳次

トライボロジスト   Vol. 59 ( 7 ) page： 429-436   2014.7

CNx膜のイオンビームミキシング成膜におけるドロップレットの生成抑制手法の提案 Reviewed

八木雄治，榊原和希，野老山貴行，梅原徳次，不破良雄，眞鍋和幹

日本機械学会論文集（C編）   Vol. 79 ( 807 ) page： 4443-4451   2013.11

In-situ Observation for Tribomicroplasma and Transfer Layer Forming of Carbon Nitride Coating Reviewed

Y. Miyahira, T. Tokoroyama, N. Umehara and Y. Fuwa

Journal of Japanese Society of Tribologists   Vol. 56 ( 6 ) page： 378 - 384   2011.6

Development of precipitation lubrication with palmitic acid and its friction mechanism Reviewed International coauthorship

Hashizume, N; Takano, R; Umehara, N; Tokoroyama, T; Zhang, RX; Hanyuda, K; Otsuka, A; Ueda, M

TRIBOLOGY INTERNATIONAL   Vol. 200   2024.12

Effect of mesh structure of tetrahedral amorphous carbon (ta-C) coating on friction and wear properties under base-oil lubrication condition Reviewed

Bin Mustafa, MM; Umehara, N; Tokoroyama, T; Murashima, M; Shibata, A; Utsumi, Y; Moriguchi, H

TRIBOLOGY INTERNATIONAL   Vol. 147   2020.7

Tribological properties of ta-CNx coating sliding against steel and sapphire in unlubricated condition Reviewed

X. Liu, N. Umehara, T. Tokoroyama, M. Murashima

Tribology International   Vol. 131   page： 102-111   2019.3

The effects of temperature, pressure and dissolved oxygen concentration (DO) in water on the wear of the hydrogenated diamond-like carbon (HDLC) at high temperature and pressurized water Reviewed

Zin, MRB; Yagi, Y; Sasaki, K; Inayoshi, N; Tokoroyama, T; Umehara, N; Kousaka, H; Kawara, S

TRIBOLOGY INTERNATIONAL   Vol. 109   page： 48 - 57   2017.5

The effects of temperature, pressure and dissolved oxygen concentration (DO) in water on the wear of the hydrogenated diamond-like carbon (HDLC) at high temperature and pressurized water Reviewed

M.R.B. Mohamad Zin, Y. Yagi, K. Sasaki, N. Inayoshi, T. Tokoroyama, N. Umehara, H. Kousaka, S. Kawara

Tribology International   Vol. 109   page： 48-57   2017.3

Clarification of relationship between friction coefficient and transformed layer of CNx coating by in-situ spectroscopic analysis Reviewed

H. Nishimura, N. Umehara, H. Kousaka, T.Tokoroyama

Tribology International   Vol. 93 ( B ) page： 660-665   2016.1

The effect of oil temperature and additive concentration on the wear of non-hydrogenated DLC coating Reviewed

H.A. Tasdemir, M. Wakayama, T. Tokoroyama, H. Kousaka, N. Umehara, Y. Mabuchi and T. Higuchi

Tribology International   Vol. 77   page： 65-71   2014.9

Influence of zinc dialkyldithiophosphate tribofilm formation on the tribological performance of self-mated diamond-like carbon contacts under boundary lubrication Reviewed

H.A. Tasdemir, T. Tokoroyama, H. Kousaka, N. Umehara and Y. Mabuchi

Thin Solid Films   Vol. 562 ( 1 ) page： 389-397   2014.1

Wear behaviour of tetrahedral amorphous diamond-like carbon in additive containing lubricants Reviewed

H. Tasdemir, M. Wakayama, T. Tokoroyama, H. Kousaka, N. Umehara, Y. Mabuchi, T. Higuchi

Wear   Vol. 307 ( 1-2 ) page： 1 - 9   2013.9

Thermal stability and high-temperature tribological properties of a-C:H and Si-DLC deposited by microwave sheath voltage combinatio plasma Reviewed

X. Deng, H. Kousaka, T. Tokoroyama, N. Umehara

Tribology Online   Vol. 8 ( 4 ) page： 257 - 264   2013.9

Evaluation of transformed layers of DLC after sliding in oil with spectroscopic reflectometry Reviewed

K. Ohara, N.A.B Masripan, H. Kousaka, T. Tokoroyama, N. Umehara, S. Inayoshi, K. Zushi, M. Fujita

Tribology International   Vol. 65   page： 270 - 277   2013.9

Ultra-low friction of diamond-like carbon (DLC) under oil boundary lubrication Reviewed

H. Tasdemir, M. Wakayama, T. Tokoroyama, H. Kousaka, N. Umehara, Y. Mabuchi, T. Higuchi

Tribology International   Vol. 65   page： 286 - 294   2013.9

加熱冷却過程におけるDLC膜のはく離メカニズムの解明 Reviewed

三宮大輝，上坂裕之，梅原徳次，野老山貴行

日本機械学会論文集（C編）   Vol. 79 ( 799 ) page： 858 - 865   2013.3

Hardness effect of DLC on tribological properties for sliding bearing under boundary lubrication condition in additive-free mineral base oil Reviewed

N.A.B. Masripan, K. Ohara, N. Umehara, H. Kousaka, T. Tokoroyama, S. Inami, K. Zushi, M. Fujita

Tribology International   Vol. 65   page： 265 - 269   2013

Phase Transformation Studies on a-C Coating under Repetitive Impacts Reviewed

Mohd Fadzli Bin Abdollah, Yuto Yamaguchi, Tsuyoshi Akao, Naruhiko Inayoshi, Noritsugu Umehara, and Takayuki Tokoroyama

Surface and Coatings Technology   Vol. 205 ( 2 ) page： 625 - 631   2010.10

Effect of Water on Wear of DLC Coatings in High Temperature and Pressurized Ethanol Reviewed

Tokoroyama, T; Horikawa, S; Mimata, J; Umehara, N; Murashima, M

TRIBOLOGY LETTERS   Vol. 72 ( 4 )   2024.12

Clarification of the effects of adsorption films of ester-blended oil on friction by in situ reflectance spectroscopy Reviewed

Hirata, K; Murashima, M; Umehara, N; Tokoroyama, T; Hashizume, N; Lee, WY; Takekawa, D; Narita, K

TRIBOLOGY INTERNATIONAL   Vol. 187   2023.9

Friction characteristics of amorphous carbon coating against various 3<i>d</i>-transition metals Reviewed

Kim, JI; Lee, WY; Tokoroyama, T; Murashima, M; Umehara, N

TRIBOLOGY INTERNATIONAL   Vol. 174   2022.10

New in situ superlow-friction method for nitrogen-containing diamond-like carbon coatings using dielectric barrier discharge treatment in ambient air Reviewed

Wu, WJ; Murashima, M; Saso, T; Tokoroyama, T; Lee, WY; Kousaka, H; Umehara, N

TRIBOLOGY INTERNATIONAL   Vol. 174   2022.10

Effect of fracture properties and surface morphology on wear of DLC coatings at severe contact condition Reviewed

Yamada, Y; Murashima, M; Umehara, N; Tokoroyama, T; Lee, WY; Takamatsu, H; Tanaka, Y; Utsumi, Y

TRIBOLOGY INTERNATIONAL   Vol. 169   2022.5

Realization of near-less friction of ta-CNx coating under R32 refrigerant environment Reviewed

Lee, W; Murashima, M; Umehara, N; Tokoroyama, T; Horaguchi, N; Ishimoto, T

TRIBOLOGY INTERNATIONAL   Vol. 168   2022.4

New in situ low-friction technology for diamond-like carbon coatings using surface discharge treatment in ambient air Reviewed

Murashima, M; Oyama, S; Kousaka, H; Tokoroyama, T; Lee, WY; Umehara, N

TRIBOLOGY INTERNATIONAL   Vol. 165   2022.1

In situ observation of the formation of MoDTC-derived tribofilm on a ta-C coating using reflectance spectroscopy and its effects on friction Reviewed

Hashizume, N; Murashima, M; Umehara, N; Tokoroyama, T; Lee, WY

TRIBOLOGY INTERNATIONAL   Vol. 162   2021.10

Realization of a Novel Morphing Surface Using Additive Manufacturing and Its Active Control in Friction Reviewed

Murashima, M; Imaizumi, Y; Kawaguchi, M; Umehara, N; Tokoroyama, T; Saito, T; Takeshima, M; Tsukiyama, Y; Nitta, I

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME   Vol. 143 ( 5 )   2021.5

Active friction control in lubrication condition using novel metal morphing surface Reviewed

Murashima, M; Imaizumi, Y; Murase, R; Umehara, N; Tokoroyama, T; Saito, T; Takeshima, M

TRIBOLOGY INTERNATIONAL   Vol. 156   2021.4

Nanotextured Mold Surface with DLC Coating for Reduction in Residual Ceramic Particles Reviewed

Murashima, M; Hojo, K; Ito, S; Umehara, N; Tokoroyama, T; Takahashi, T; Imaeda, M

LANGMUIR   Vol. 37 ( 12 ) page： 3563 - 3574   2021.3

Development of Surface Roughness Generation Model for CFRTP Manufactured by LFT-D Reviewed

Murashima, M; Murooka, T; Umehara, N; Tokoroyama, T

INTERNATIONAL JOURNAL OF AUTOMATION TECHNOLOGY   Vol. 14 ( 2 ) page： 208 - 216   2020.3

New Droplet Removal Polishing Method for Diamond-Like Carbon with Carbon Fiber Brush Reviewed

Murashima, M; Imaizumi, Y; Umehara, N; Tokoroyama, T

INTERNATIONAL JOURNAL OF AUTOMATION TECHNOLOGY   Vol. 14 ( 2 ) page： 190 - 199   2020.3

Effect of mating material and graphitization on wear of a-C:H coating in boundary base oil lubrication Reviewed

K.A.M. Aboua, N. Umehara, H. Kousaka, T. Tokoroyama, M. Murashima, M.M.B. Mustafa, Y. Mabuchi, T. Higuchi, M. Kawaguchi

Tribology Letters   Vol. 68   2020.1

Effect of Mating Material and Graphitization on Wear of a-C:H Coating in Boundary Base Oil Lubrication Reviewed

Aboua, KAM; Umehara, N; Kousaka, H; Tokoroyama, T; Murashima, M; Bin Mustafa, MM; Mabuchi, Y; Higuchi, T; Kawaguchi, M

TRIBOLOGY LETTERS   Vol. 68 ( 1 )   2020.1

Effect of Carbon Diffusion on Friction and Wear Behaviors of Diamond-Like Carbon Coating Against Germanium in Boundary Base Oil Lubrication Reviewed

Aboua Kouami Auxence Melardot, Umehara Noritsugu, Kousaka Hiroyuki, Tokoroyama Takayuki, Murashima Motoyuki, Mabuchi Yutaka, Higuchi Tsuyoshi, Kawaguchi Masahiro

TRIBOLOGY LETTERS   Vol. 67 ( 2 ) page： 65   2019.6

Tribological properties of ta-CNx coating sliding against steel and sapphire in unlubricated condition Reviewed

Liu, XX; Umehara, N; Tokoroyama, T; Murashima, M

TRIBOLOGY INTERNATIONAL   Vol. 131   page： 102 - 111   2019.3

Effect of mesh structure of tetrahedral amorphous carbon ta-C coating on friction and wear properties under base-oil lubrication condition Reviewed

M.M.B. Mustafa, N. Umehara, T. Tokoroyama, M. Murashima, A. Shibata, Y. Utsumi, H. Moriguchi

Tribology International     2019.1

Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating Reviewed

Bin Mustafa Mohd Muhyiddin, Umehara Noritsugu, Tokoroyama Takayuki, Murashima Motoyuki, Shibata Akinori, Utsumi Yoshiharu, Moriguchi Hideki

TRIBOLOGY ONLINE   Vol. 14 ( 5 ) page： 388 - 397   2019

Effect of Carbon Diffusion on Friction and Wear Behaviors of Diamond-Like Carbon Coating Against Cr-Plating in Boundary Base Oil Lubrication Reviewed

Aboua Kouami Auxence Melardot, Umchara Noritsugu, Kousaka Hiroyuki, Tokoroyama Takayuki, Murashima Motoyuki, Mabuchi Yutaka, Higuchi Tsuyoshi, Kawaguchi Masahiro

TRIBOLOGY ONLINE   Vol. 13 ( 5 ) page： 290-300   2018.12

FCVA法によるホウ素含有炭素ターゲットを用いたta-C:B膜の成膜及び300℃までのトライボロジー特性 Reviewed

根本公紀，梅原徳次，野老山貴行，村島基之，瀧本裕治，中道健司

トライボロジスト   Vol. 60 ( 10 ) page： 699-705   2018.10

The effects of oil additives and mating materials to the friction, wear and seizure characteristics of a-C:H coating Reviewed

bin Taib Mohd Taufik, Umehara Noritsugu, Tokoroyama Takayuki, Murashima Motoyuki

JURNAL TRIBOLOGI   Vol. 18   page： 1-19   2018.9

The Effect of UV Irradiation to a-C:H on Friction and Wear Properties under PAO Oil Lubrication Including MoDTC and ZnDTP Reviewed

bin Taib Mohd Taufik, Umchara Noritsugu, Tokoroyama Takayuki, Murashima Motoyuki

TRIBOLOGY ONLINE   Vol. 13 ( 3 ) page： 119-130   2018.7

Effect of ZnDTP triboflim's morphology on friction behaviors of DLC coatings: Tribofilm characterization by 3D scanning electron microscope observation Reviewed

Aboua Kouami Auxence Melardot, Umehara Noritsugu, Kousaka Hiroyuki, Tokoroyama Takayuki, Murashima Motoyuki, Tasdemir Haci Abdullah, Mabuchi Yutaka, Higuchi Tsuyoshi

JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING   Vol. 12 ( 7 )   2018

Effect of oil temperature and counterpart material on the wear mechanism of ta-CNx coating under base oil lubrication Reviewed

Liu Xiaoxu, Yamaguchi Ryo, Umehara Noritsugu, Murashima Motoyuki, Tokoroyama Takayuki

WEAR   Vol. 390-391   page： 312 - 321   2017.11

固体潤滑シートによるチタン合金板の穴あけ加工におけるバリ発生の抑制 Reviewed

川崎貴之，梅原徳次，上坂裕之，野老山貴行，堀江茂，松山洋介

日本機械学会論文集   Vol. 81 ( 831 ) page： 15-00247   2015.10

熱可塑性樹脂の金属に対する付着に及ぼす金属表面温度の影響 Reviewed

村島基之，梅原徳次，上坂裕之，野老山貴行

日本機械学会論文集   Vol. 81 ( 822 ) page： 14-00098   2015.2

プラズマCVD法により作製したSi-CNxHy膜の油中摩擦特性 Reviewed

北爪一考，上坂裕之，野老山貴行，梅原徳次，不破良雄，眞鍋和幹

日本機械学会論文集   Vol. 80 ( 820 ) page： trans0340   2014.12

Deposition and tribological behaviors of ternary BCN coatings at elevated temperatures Reviewed

X. Deng, H. Kousaka, T. Tokoroyama and N. Umehara

Surface and Coatings Technology   Vol. 259   page： 2-6   2014.12

Effect of tetramethylsilane flow on the deposition and tribological behaviors of silicon doped diamond-like carbon rubbed against poly(oxymethylene) Reviewed

X. Deng, Y. Lim, H. Kousaka, T. Tokoroyama and N. Umehara

Japanese Journal of Applied Physics   Vol. 53 ( 11 ) page： RA04   2014.9

PTFEの親水化とブラシ化処理の水潤滑下耐焼付き性に及ぼす影響 Reviewed

河原真吾，梅原徳次，野老山貴行，鈴木雅裕，齋藤利幸，新井大輔

日本機械学会論文集   Vol. 80 ( 816 ) page： MN0243   2014.8

高摩擦・低相手攻撃性アブレシブ形状及びディスク材の提案（アブレシブ摩耗における摩耗度に及ぼすアブレシブの開き角及びディスク材の単位体積当たりの破断エネルギの影響） Reviewed

炭竈美穂，野老山貴行，上坂裕之，梅原徳次

日本機械学会論文集   Vol. 80 ( 815 ) page： SMM0182   2014.7

Tribological behaviors of tetrahedral amorphous carbon (ta-C) coatings at elevated temperature Reviewed

Xingrui Deng, Hiroyuki Kousaka, Takayuki Tokoroyama, Noritsugu Umehara

Tribology International   Vol. 75   page： 98-103   2014.7

高摩擦・低相手攻撃性アブレシブ形状の提案（アブレシブ摩耗における摩擦係数と相手材の摩耗度に及ぼすアブレシブの開き角の影響） Reviewed

炭竈美穂，梅原徳次，野老山貴行，上坂裕之

日本機械学会論文集   Vol. 80 ( 811 ) page： SMM0038   2014.3

カーボンファイバーの摩擦特性に及ぼすプラズマ照射の影響 Reviewed

三宮大輝，梅原徳次，野老山貴行，上坂裕之

日本機械学会論文集（C編）   Vol. 79 ( 801 ) page： 1827 - 1836   2013.3

Effect of transfer layer on ultra low friction of CNx coating under blowing dry Ar Reviewed

N.A.B. Masripan, Y. Miyahira, H. Nishimura, T. Tokoroyama, N. Umehara, Y. Fuwa

Tribology Online   Vol. 8 ( 3 ) page： 219-226   2013.3

カーボンナノチューブの押込みにおけるヒステリシス発生メカニズムの解明 Reviewed

若山幹晴，月山陽介，野老山貴行，上坂裕之，梅原徳次

日本機械学会論文集（C編）   Vol. 79 ( 801 ) page： 1821-1826   2013.3

シリコーンオイルフリー注射器実現のための光化学的フッ素化処理ガスケットの最適化 Reviewed

小椋東吾，宇佐美恵佑，上坂裕之，梅原徳次，野老山貴行

日本機械学会論文集（C編）   Vol. 79 ( 803 ) page： 2506 - 2516   2013

Future developments of a deformation-wear transition map of DLC coating Reviewed

M.F.B. Abdollah, Y. Yamaguchi, T. Akao, N. Miyamoto, T. Tokoroyama and N. Umehara

Tribology Online   Vol. 7 ( 3 ) page： 107 - 111   2012.6

Deformation-wear transition map of DLC coating under cyclic impact loading Reviewed

M.F.B. Abdollah, Y. Yamaguchi, T. Akao, N. Inayoshi, N. Miyamoto, T. Tokoroyama and N. Umehara

Wear   Vol. 274-275 ( 27 ) page： 435 - 441   2012.2

The effect of maximum normal impact load, absorbed energy and contact impulse on the impact crater volume/depth of DLC coating under impact Reviewed

M.F.B. Abdollah, Y. Yamaguchi, T. Akao, N. Inayoshi, T. Tokoroyama, N. Umehara

Tribology Online   Vol. 6 ( 6 ) page： 257 - 264   2011.8

Friction reduction between thermoplastic elastomers and plastics under unlubricated condition Reviewed

Keisuke USAMI, Hiroyuki KOUSAKA, Noritsugu UMEHARA, Takayuki TOKOROYAMA

  Vol. 76 ( 767 ) page： 1833 - 1837   2010.7

Micro Texturing of Polycarbonate Plate with Ion Beam Irradiation and its Friction Properties in Water

N. Umehara, Y. Demizu, J. Nishio, T. Tokoroyama

Key Engineering Materials   Vol. 447-448   page： 676 - 680   2010.7

Micro Texturing of Polycarbonate Plate with Ion Beam Irradiation and its Friction Properties in Water Reviewed

Noritsugu Umehara, Yasuhito Demizu, Junichi Nishio, Takayuki Tokoroyama

Key Engineering Materials   Vol. 447-448 ( 676 ) page： 676 - 680   2010.4

Reduction of adhesion between steel and frilled fish protein with ultra-hydrophobic DLC Reviewed

N. Honda, M. Kajiya, Y.-J. Jang, H. Kousaka, N. Umehara, T. Tokoroyama

Journal of Advanced Mechanical Design, Systems, and Manufacturing   Vol. 4 ( 1 ) page： 356 - 364   2010.1

The evaluation of fracture energy at the interfac between grilled fish protein and metal Reviewed

N. Honda, N. Umehara, T. Tokoroyama, R. Ohashi, A. Hanafusa

Tribology Online   Vol. 5 ( 1 ) page： 46 - 51   2010.1

Tribological properties of DLC films prepared from different raw materials Reviewed

Masahiro Suzuki, Seiichiro Hironaka, Hideyuki Toyoshima, Takayuki Tokoroyama, Akihiro Tanaka

Journal of the Surface Science Society of Japan   Vol. 25 ( 4 ) page： 232 - 237   2004.4

The development of B/Cr co-doped DLC coating by FCVA deposition system and its tribological properties at 300 °C Reviewed

Zhang, RX; Lee, WY; Umehara, N; Tokoroyama, T; Murashima, M; Takimoto, Y

SURFACE & COATINGS TECHNOLOGY   Vol. 487   2024.7

Active control of Lubricant Flow Using Dielectrophoresis and Its Effect on Friction Reduction Reviewed

Murashima, M; Aono, K; Umehara, N; Tokoroyama, T; Lee, WY

TRIBOLOGY ONLINE   Vol. 18 ( 6 ) page： 292 - 301   2023

Tribocatalytic Reaction Enabled by TiO₂ Nanoparticle for MoDTC-Derived Tribofilm Formation at ta-C/Steel Contact Reviewed International coauthorship

Matsukawa, D; Park, JH; Lee, WY; Tokoroyama, T; Kim, JI; Ichino, R; Umehara, N

COATINGS   Vol. 14 ( 6 )   2024.6

Effect of PAO-4 and MoDTC plus ZnDTP oil additive lubricants on the tribological performance of novel tetrahedral amorphous carbon (ta-C) coatings Reviewed International coauthorship

Mustafa, MMB; Umehara, N; Tokoroyama, T; Murashima, M; Utsumi, Y; Moriguchi, H; Shibata, A

TRIBOLOGY INTERNATIONAL   Vol. 193   2024.5

The ta-C Hardness Effect on Wear Properties Under MoDTC Contained Boundary Lubrication Reviewed

Tokoroyama, T; Wang, S; Umehara, N; Murashima, M; Lee, WY

TRIBOLOGY LETTERS   Vol. 72 ( 1 )   2024.3

Clarification of the Effect of Surface Energy on Tribological Behavior of Two-Phase Lubricant Using Reflectance Spectroscopy and Hydrodynamic Analysis Reviewed International coauthorship

Hirata, K; Murashima, M; Umehara, N; Tokoroyama, T; Lee, WY; Hashizume, N; Sato, T; Nagata, R; Hanyuda, K; Otsuka, A; Ueda, M

TRIBOLOGY LETTERS   Vol. 72 ( 1 )   2024.3

In situ Observation of the Formation of MoDTC-Derived Tribofilm on a Bearing Steel with Different Surface Roughness by Using a Reflectance Spectroscopy and Its Effects on Friction Reviewed International coauthorship

Hashizume, N; Tokoroyama, T; Umehara, N; Murashima, M; Lee, WY; Zhang, RX; Kunisu, M; Shioji, H; Oharada, K

TRIBOLOGY LETTERS   Vol. 72 ( 1 )   2024.3

Clarification of the Corrosion and Frictional Behavior of Nitrogen-Doped ta-C Coating in Nitride Acid Solution

Zhang, RX; Feng, HD; Umehara, N; Tokoroyama, T

PROCEEDINGS OF ITS-IFTOMM 2024   Vol. 160   page： 13 - 22   2024

Enhancing Cutting Tool Performance through ta-C:Ta Coating for CFRP Dry Machining: Investigation of Wear Resistance and Cutting Forces

Suzuki, K; Tokoroyama, T; Takita, R; Zhang, RX; Umehara, N; Sato, S; Nishida, S

PROCEEDINGS OF ITS-IFTOMM 2024   Vol. 160   page： 159 - 167   2024

Effect of Hydrogen Doping for ta-C on Friction of ta-C:H Sliding Against Bearing Steel in High Temperature and High Vacuum

Zhang, RX; Yasuda, D; Umehara, N; Tokoroyama, T

PROCEEDINGS OF ITS-IFTOMM 2024   Vol. 160   page： 149 - 158   2024

Development of Low-Friction Technology for Treating Nitrogen-Containing Diamond-Like Carbon Coatings in Ambient Air Using Dielectric Barrier Discharge

Wu, WJ; Umehara, N; Tokoroyama, T; Murashima, M; Zhang, RX

PROCEEDINGS OF ITS-IFTOMM 2024   Vol. 160   page： 99 - 106   2024

ENHANCED TRIBOLOGICAL PERFORMANCE OF TA-C COATINGS BY CONTROLLING DUCT BIAS

Lee, WY; Tokoroyama, T; Murashima, M; Jang, YJ; Umehara, N

7TH INTERNATIONAL CONFERENCE INTEGRITY-RELIABILITY-FAILURE (IRF2020)     page： 1053 - 1054   2020

ELUCIDATION OF THE EFFECT OF MoDTC ADDITIVES IN OIL ON LOW FRICTION BY <i>IN-SITU</i> REFLECTANCE OBSERVATION

Hashizume, N; Umehara, N; Tokoroyama, T; Murashima, M

7TH INTERNATIONAL CONFERENCE INTEGRITY-RELIABILITY-FAILURE (IRF2020)     page： 1047 - 1048   2020

EFFECTS OF LUBRICATION CONDITION ON FRICTION AND WEAR IN OIL LUBRICATION FOR ALUMINIUM ALLOY BEARINGS WITH VARIOUS CARBONACEOUS HARD COATINGS

Umehara, N; Kitamura, T; Tokoroyama, T; Murashima, M

7TH INTERNATIONAL CONFERENCE INTEGRITY-RELIABILITY-FAILURE (IRF2020)     page： 1045 - 1046   2020

EFFECTS OF DANGLING BONDS AND SURFACE ENERGY ON THE TRIBOLOGICAL PROPERTIES OF ta-CNx COATING IN UNLUBRICATED CONDITION

Miyachi, T; Nakashima, Y; Lee, W; Umehara, N; Tokoroyama, T; Murashima, M

7TH INTERNATIONAL CONFERENCE INTEGRITY-RELIABILITY-FAILURE (IRF2020)     page： 1051 - 1052   2020

Preface

Ando, Y; Tokoroyama, T

JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING   Vol. 14 ( 3 )   2020

Application of oil palm fiber in organic brake friction composite material

Bin Abdollah, MF; Amiruddin, H; Nordin, MJ; Tokoroyama, T; Umehara, N

PROCEEDINGS OF MECHANICAL ENGINEERING RESEARCH DAY 2020 (MERD'20)     page： 22 - 23   2020

DEVELOPMENT OF FRICTION STABILIZATION CONTROL USING GENETIC ALGORITHM AND CONTACT POINT CONTROL METHOD

Yamada, T; Murashima, M; Umehara, N; Tokoroyama, T

PROCEEDINGS OF THE JSME 2020 CONFERENCE ON LEADING EDGE MANUFACTURING/MATERIALS AND PROCESSING, LEMP2020     2020

TRIBOLOGICAL PROPERTIES BETWEEN A-C:H COATINGS AND SIO2 AT HIGH TEMPERATURE

Umehara, N; Konishi, K; Murashima, M; Tokoroyama, T

PROCEEDINGS OF THE JSME 2020 CONFERENCE ON LEADING EDGE MANUFACTURING/MATERIALS AND PROCESSING, LEMP2020     2020

THE PROPOSAL OF TWO DIFFERENT-SIZED ABRASIVES TO SHORTEN POLISHING-PROCESS-TIME AND REDUCE MANUFACTURING COST

Tokoroyama, T; Takeno, H; Umehara, N; Murashima, M

PROCEEDINGS OF THE JSME 2020 CONFERENCE ON LEADING EDGE MANUFACTURING/MATERIALS AND PROCESSING, LEMP2020     2020

THE INFLUENCE OF DEFECTS IN TA-C COATING DEPOSITED BY FCVA METHOD ON THEIR TRIBOLOGICAL BEHAVIOR

Lee, WY; Jang, YJ; Tokoroyama, T; Murashima, M; Umehara, N

PROCEEDINGS OF THE JSME 2020 CONFERENCE ON LEADING EDGE MANUFACTURING/MATERIALS AND PROCESSING, LEMP2020     2020

LOW FRICTION REALISED BY HYDROGEN-ENDED DLC SURFACE THROUGH PHOTOCATALYST EFFECT IN WATER LUBRICATED CONDITION

Murashima, M; Imaizumi, Y; Yamada, T; Shotaro, K; Yoshida, T; Umehara, N; Tokoroyama, T

PROCEEDINGS OF THE JSME 2020 CONFERENCE ON LEADING EDGE MANUFACTURING/MATERIALS AND PROCESSING, LEMP2020     2020

Tribological properties of UV irradiated DLC under PAO oil lubrication including ZnDTP, MoDTC and GMO

Taib, MT; Tokoroyama, T; Umehara, N; Murashima, T

PROCEEDINGS OF ASIA INTERNATIONAL CONFERENCE ON TRIBOLOGY 2018 (ASIATRIB 2018)     page： 206 - 207   2018

Tribological properties of 3D-printed pin with internal structure formation under dry sliding conditions

Tahir, NAM; Azmi, MS; Bin Abdollah, MF; Ramli, FR; Amiruddin, H; Tokoroyama, T; Umehara, N

PROCEEDINGS OF MECHANICAL ENGINEERING RESEARCH DAY 2018 (MERD)     page： 260 - 261   2018

THE WEAR OF DIAMOND-LIKE CARBON BY MOLYBDENUM BASED PARTICLES UNDER BOUNDARY LUBRICATION

Tokoroyama, T; Nishino, T; Yamaguchi, M; Kassim, KAM; Umehara, N

IRF2018: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON INTEGRITY-RELIABILITY-FAILURE     page： 943 - 944   2018

The effect of molybdenum carbide (Mo₂C) particles on wear properties of diamond-like carbon under boundary lubrication

Kassim, KAM; Tokoroyama, T; Murashima, M; Umehara, N

PROCEEDINGS OF ASIA INTERNATIONAL CONFERENCE ON TRIBOLOGY 2018 (ASIATRIB 2018)     page： 348 - 349   2018

PROPOSAL OF DEVELOPMENT GUIDLINE FOR LOW FRICTIONAL MATERIAL IN OIL LUBRICATION WITH HIGH PERMITTIVITY MATERIAL

Murashima, M; Oh, SJ; Miyachi, T; Umehara, N; Tokoroyama, T; Konishi, K; Okamoto, T

IRF2018: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON INTEGRITY-RELIABILITY-FAILURE     page： 941 - 942   2018

Investigating run-in behavior of ta-C friction and understating wear behavior at high temperature

Lee, WY; Tokoroyama, T; Murashima, M; Jang, YJ; Kim, JK; Umehara, N

PROCEEDINGS OF ASIA INTERNATIONAL CONFERENCE ON TRIBOLOGY 2018 (ASIATRIB 2018)     page： 100 - 102   2018

Effect of structure of tetrahedral amorphous carbon (ta-C) coating on friction and wear properties under base-oil lubrication condition

Mustafa, MMB; Umehara, N; Tokoroyama, T; Murashima, M; Shibata, A; Moriguchi, H

PROCEEDINGS OF ASIA INTERNATIONAL CONFERENCE ON TRIBOLOGY 2018 (ASIATRIB 2018)     page： 173 - 175   2018

Synergistic effect of contact pressure and sliding speed on the friction coefficient of palm kernel activated carbon-epoxy composite

Mahmud, DNF; Bin Abdollah, MF; Bin Masripan, NA; Amiruddin, H; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 11 - 13   2017

Potential of growing graphene from solid waste products

Tahir, NAM; Bin Abdollah, MF; Tamaldin, N; Amiruddin, H; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 26 - 28   2017

Polymer adhesion investigation on fused deposition modelling machine

Nazan, MA; Ramli, FR; Alkahari, MR; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 6 - 7   2017

Frictional properties of laser surface textured palm kernel activated carbon reinforced polymeric composite

Mohmad, M; Bin Abdollah, MF; Tamaldin, N; Amiruddin, H; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 14 - 16   2017

Effect of zinc dioctyl dithophospate concentrations on the friction coefficient of palm oil

Alias, MAM; Bin Abdollah, MF; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 20 - 21   2017

Effect of the substrate bias on tribological behavior of ta-C films at elevated temperatures

Lee, WY; Umehara, N; Tokoroyama, T; Murashima, M; Jang, YJ; Kim, JK

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 29 - 32   2017

Effect of temperature and counterpart material on the wear behavior of ta-CNx coating in base-oil

Liu, XX; Umehara, N; Tokoroyama, T; Murashima, M

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 22 - 25   2017

Effect of process parameters on the geometrical quality of ABS polymer lattice structure

Rosli, NA; Hasan, R; Alkahari, MR; Tokoroyama, T

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 3 - 5   2017

Effect of hexagonal boron nitride additive on the vibrations of ball bearing

Apandi, NSR; Ismail, R; Bin Abdollah, MF; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 36 - 38   2017

The study on microhardness of natural fibre composite made by recycled material

Jumadi, MT; Mansor, MR; Mustafa, Z; Tokoroyama, T; Umehara, N

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 17 - 19   2017

Vibration analysis of FDM printed lattice structure bar

Azmi, MS; Ismail, R; Hasan, R; Alkahari, MR; Tokoroyama, T

PROCEEDINGS OF SAKURA SYMPOSIUM ON MECHANICAL SCIENCE AND ENGINEERING 2017     page： 33 - 35   2017

Carbonaceous overcoat synthesized on carbon nitride coating and UV irradiation effect to obtain low friction surface for DLC

T. Tokoroyama, N. Umehara

Proc. of 3rd ITS2013     page： 0079   2013.3

反射分光分析による油中摩擦におけるDLC膜の構造変化層厚さ及び微小摩耗量の評価方法の開発とその応用

大原健司，N.A.B. Masripan，梅原徳次，上坂裕之，野老山貴行，稲見茂，図師耕治，藤田正仁

日本機械学会東海支部代62期総会講演会     page： 409-410   2013.3

次世代自動車のための高摩擦・低相手攻撃性ブレーキパッドの開発

炭竈美穂，野老山貴行，梅原徳次，上坂裕之

日本機械学会東海支部代62期総会講演会     page： 411-412   2013.3

Thermal stability and high temperature tribological properties of a-C:H and Si-DLC deposited by microwave sheath voltage combination plasma

X. Deng, T. Tokoroyama, N. Umehara

Proc. of 2nd Workshop on High temperature tribology     page： 1-20   2013.3

The compatibilty condition of drill for sharpness and high wear resistance in drilling of CFRP

N. Li, T. Tokoroyama, N. Umehara

    page： 202-203   2012.9

The UV irradiation effect for structural change of carbonaceous coating and its frictional property

T. Tokoroyama, N. Umehara

    page： 204-205   2012.9

Development of reduction method of droplets on the basis of their generation mechanism for carbon nitride coating by IBAD method

Y. Yagi, T. Tokoroyama, N. Umehara, Y. Fuwa, K. Manabe

    page： 7-8   2012.9

The thickness measurement of UV irradiated carbonaceous coating's structural change layer by ellipsometry

T. Tokoroyama, N. Umehara

    page： 71-72   2012.9

The basic study of Carbon Nitride coating for low friction under oil lubrication

K. Sakakibara, T. Tokoroyama, N. Umehara, Y. Fuwa, K. Manabe

    page： 67-68   2012.9

High-adhesion and low-temperature processing of Si-containing hydrogenated carbon nitride films deposited by PECVD

K. Kitazume, H. Kousaka, N. Umehara, T. Tokoroyama, Y. Fuwa, K. Manabe

    page： S116032   2012.9

Tribological property of carbon fiber

Y. Otsuka, T. Tokroyama, N. Umehara, Y. Tsukiyama

    page： J111025   2012.9

Clarification of hysteresis mechanism in the indentation of the high-densed carbon nanotube film

M. Wakayama, Y. Tsukiyama, T. Tokoroyama, H. Kousaka, N. Umehara

    page： J111021   2012.9

The clarification of mechanism of DLC under repeated impact

Y. Yamaguchi, T. Tokoroyama, N. Umehara, N. Inayoshi, T. Akao, N. Miyamoto

    page： J111034   2012.9

The basic study of Carbon Nitirde coating to generate low friction under oil lubrication

K. Sakakibara, T. Tokoroyama, N. Umehara, K. Manabe, Y. Fuwa

    page： J111031   2012.9

Clarification of mechanism and control techniques about droplets of the CNx coating by ion beam assisted deposition

Y. Yagi, T. Tokoroyama, H. Kousaka, N. Umehara, Y. Fuwa, K. Manabe

    page： S116025   2012.9

Development of high friction and low aggressiveness brake pad for next-generation automobile

M. Sumigama, T. Tokoroyama, H. Kousaka, N. Umehara

    page： S116012   2012.9

Hardness effect of DLC on tribological properties for sliding bearing under boundary lubrication condition in additive-free mineral base oil

N.A. Masripan, K. Ohara, N. Umehara, H. Kousaka, T. Tokoroyama, S. Inami, K. Zushi, M. Fujita

Proc. of Leeds-Lyon symposium 2012     page： Ⅶ(ⅴ)   2012.8

Evaluation of transformed layers of DLC after sliding in oil with spectroscopic reflectometry

K. Ohara, N.A.B. Masripan, N. Umehara, H. Kousaka, T. Tokoroyama, S. Inami, K. Zushi, M. Fujita

Proc. of Leeds-Lyon symposium 2012     page： ⅩⅥ(ⅳ)   2012.8

Ultra-low friction of diamond-like carbon (DLC) under oil boundary lubrication

H.A. Tasdemir, T. Tokoroyama, H. Kousaka, N. Umehara, Y. Mabuchi, T. Higuchi

Proc. of Leeds-Lyon symposium 2012     page： ⅩⅥ(ⅱ)   2012.8

TEM evaluation of super low friction surface of Carbon Nitride coating

H. Inoue, T. Tokoroyama, N. Umehara, S. Arai, N. Tanaka

    page： 163-164.   2012.4

The effect of UV irradiation on carbonaceous coating

T. Tokoroyama, N. Umehara

    page： 171-172.   2012.4

Ultra-low friction of Si-Containing Hydrogenated Carbon Nitride Film Deposited by Plasma-Enhanced Chemical Vapor Deposition

Sakakibara, H., Kousaka, H., Tokoroyama, T. and Umehara, N.

Proceedings of The 5th International Conference on Plasma Nanotechnology & Science (IC-PLANTS 2012)     page： 170-171   2012.3

Development of internal DLC coating method without surface roughness increase for high-performance suspension

Hanihara, A., Kousaka, H., Tokoroyama, T. and Umehara, N.

Proceedings of The 5th International Conference on Plasma Nanotechnology & Science (IC-PLANTS 2012)     page： 176-177   2012.3

Friction properties of carbon fiber brush

Y. Otsuka, H. Kousaka, T. Tokoroyama and N. Umehara

2011 KNU-Nagoya Unic. Joint Symposium on High Performance of Tribosystem     page： 41-43   2011.10

Clarification of the hysteresis mechanism in the indentation of the high-densed carbon nanotube film

M. Wakayama, H. Kousaka, T. Tokoroyama and N. Umehara

2011 KNU-Nagoya Unic. Joint Symposium on High Performance of Tribosystem     page： 65-67   2011.10

Observation of cross-sectional images for impacted DLC

Y. Yamaguchi, M. Fadzli, T. Tokoroyama and N. Umehara

2011 KNU-Nagoya Unic. Joint Symposium on High Performance of Tribosystem     page： 62-64   2011.10

Development of internal DLC coating method without surface roughness increase for high-performance suspension

A. Hanihara, H. Kousaka, T. Tokoroyama and N. Umehara

2011 KNU-Nagoya Unic. Joint Symposium on High Performance of Tribosystem     page： 47-49   2011.10

The consideration about the influence of the heating and cooling process on peeling off of DLC film

D. Sannomiya, H. Kousaka, T. Tokoroyama and N. Umehara

2011 KNU-Nagoya Unic. Joint Symposium on High Performance of Tribosystem     page： 44-46   2011.10

Mechanical and Wear Properties of Ti-Ni Alloy Thin Film

Hitoo Tokunaga, Keisuke Matsumoto, Minoru Goto, Takayuki Tokoroyama and Noritsugu Umehara

    2011.9

The suggestion of adhesion force evaluation method for heat denaturation protein

Yasuyuki Takaoka, Naoko Honda, Yosuke Tsukiyama, Takayuki Tokoroyama, Hiroyuki Kousaka and Noritsugu Umehara

    2011.9

The influence of droplets for frictional property of IBAD CNx coating

Kazuki Sakakibara, Takayuki Tokoroyama, Noritsugu Umehara and Yoshio Fuwa

    2011.9

Analysis of DLC wear particles on oil lubrication

Kenji Ohara, Toru Kamiya, Noritsugu Umehara, Takayuki Tokoroyama and Hiroyuki Kousaka

    2011.9

Observation of Cross-sectional images impacted DLC films

Yuto Yamaguchi, Mohd Fadzli, Takayuki Tokoroyama, Noritsugu Umehara, Naruhiko Inayoshi, Tsuyoshi Akao and Nobuyuki Miyamoto

    2011.9

Development of a radio knife supperssing the adhesion of coagulated blood

Y. Nakashima, N. Umehara, T. Tokoroyama

    page： 299-300   2011.3

Effect of real contact area and average surface pressure on friction

T. Ogura, N. Umehara, H. Kousaka, T. Tokoroyama

    page： 295-296   2011.3

Friction control of CNx coated thrust bearing by temperature control

M. Kajiya, T. Tokoroyama, H. Kousaka, N. Umehara

    page： 285-286   2011.3

CFRPの穴あけ加工における超硬合金ドリルの摩耗機構の解明

梅原徳次，野老山貴行，西尾潤一

日本機械学会東海支部第60期総会講演会     page： 611   2011.3

Mechanical property of DLC coated with plasma-enhanced CVD employing adamantane as precursor material

S. Moroto, H. Kousaka, T. Tokoroyama, N. Umehara

Proceedings of ICOMM 2011     page： 657-661   2011.3

Study on diference between static and dynamic friction coefficients of DLC film deposited by surface wave-excited plasma CVD

A. Hanihara, H. Kousaka, T. Tokoroyama, N. Umehara

    page： 128   2011.3

The effect of ultraviolet light irradiation on tribological properties of hydrogenated DLC

T. Tokoroyama, T. Hatano, N. Umehara and Y. Fuwa

Proceedings of MHS2010     page： 234-238   2010.11

The effect of maximum normal impact load absorbed energy and contact impulse on the impact craters volume depth of DLC coating under repetitive impacts

Fadzli, M., Yamaguchi, Y., Akao, T., Inayoshi, N., Tokoroyama, T., Umehara, N.

    page： 471-472   2010.9

焦げ付き抑制のための微小溝を付与した複合材電気メスチップの開発

中島悠也，梅原徳次，野老山貴行，赤上陽一

精密工学会秋季大会学術講演会講演論文集     page： 635-636   2010.9

CFRP穴あけにおける超硬合金ドリルの摩耗機構

西尾潤一，梅原徳次，野老山貴行，高橋孝幸，井加田朗

精密工学会秋季大会学術講演会講演論文集     page： 323-324   2010.9

DLC膜の摩擦特性に及ぼす紫外線照射の影響

野老山貴行，羽田野拓也，梅原徳次，不破良雄

日本機械学会2010年度年次大会講演論文集   Vol. 8   page： 229-230   2010.9

カーボンファイバーの摩擦特性に及ぼすプラズマ照射の影響

三宮大輝，野老山貴行，梅原徳次

日本機械学会2010年度年次大会講演論文集   Vol. 4   page： 61-62   2010.9

窒化炭素膜の極表面せん断抵抗のAFM測定

月山陽介，木村徳博，野老山貴行，梅原徳次

日本機械学会2010年度年次大会講演論文集   Vol. 8   page： 231-232   2010.9

無潤滑下における鉄添加DLC膜のトライボロジー特性

鈴木雅裕，齊藤利幸，野老山貴行

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 463-464   2010.9

電子ビーム蒸着およびイオンビームミキシング法を用いたCNx膜成膜時基板冷却の硬さに及ぼす影響

野老山貴行，齋藤諒介，梅原徳次，不破良雄

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 75-76   2010.9

微小振動による電気メスチップ先端における血液凝固付着抑制効果

中島悠也，梅原徳次，野老山貴行

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 429-430   2010.9

CFRP穴あけにおける超硬合金ドリルの摩耗機構

西尾潤一，梅原徳次，野老山貴行，高橋孝幸，井加田朗

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 1-2   2010.9

CNx膜の摩擦に及ぼす移着膜と発光現象の影響

宮平裕生，野老山貴行，梅原徳次，不破良雄

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 77-78   2010.9

CNx膜スラスト平面軸受における超低摩擦発現機構の検討

加治屋誠，野老山貴行，梅原徳次

日本トライボロジー学会トライボロジー会議予稿集（福井2010-9）     page： 465-466   2010.9

Deformations of carbon nanotubes made by surface decomposition of SiC

Tsukiyama, Y., Kimura, N., Wakayama, M., Umehara, N., Kusunoki, K.

    page： 497-498   2010.9

Tribological properties of TiNi alloy films deposited by ion beam sputtering

Matsumoto, K., Goto, M., Tokunaga, H., Tokoroyama, T., and Umehara, N.

Proceedings of JAST Tribology Conference Tokyo     page： 103-104   2010.5

The effect of substrate temperature of the hardness of CNx coating

Tokoroyama, T., Saito, R., Umehara, N., and Fuwa, Y.

Proceedings of The 10th. Machine Design and Tribology Division Meeting in JSME     page： 141-142   2010.4

Influence of Ultraviolet Ray Irradiation on CNx Coating's Tribological Characteristics

T. Tokoroyama, N. Umehara, Y. Fuwa

Proceedings of ICMCTF2010     page： 3   2010.4

Micro Texturing of Polycarbonate Plate with Ion Beam Irradiation and its Friction Properties in Water Reviewed

Noritsugu Umehara, Yasuhito Demizu, Junichi Nishio, Takayuki Tokoroyama

Key Engineering Materials   Vol. 447-448 ( 676 ) page： 676-690   2010.4

Mechanical property control of the DLC film by using adamantane as precursor material in plasma-enhanced CVD

Moroto, S., Kousaka, H., Tokoroyama, T., Umehara, N.

Proceedings of ISPlasma2010     page： 180   2010.3

Hardening process of CNx coatings by Ion Beam Assisted Deposition

Saito, R.Tokoroyama, T.Fuwa, Y.Umehara, N.

Proceedings of Mechanical Engineers Tokai Branch 59th annual meeting     page： 301-302   2010.3

Clarification of ultra low friction mechanism of CNx coating in N2 with an AFM

Kimura, H., Tsukiyama, Y., Tokoroyama, T., Umehara, N.

Proceedings of Mechanical Engineers Tokai Branch 59th annual meeting     page： 299-300   2010.3

たんぱく質の付着抑制の基礎研究

大平雅明，梅原徳次，野老山貴行

日本機械学会東海支部第41回学生員卒業研究発表講演会     page： 212-213   2010.3

イオンビームミキシング法によるCNx膜の摩擦特性と密着性に及ぼす中間層の影響

若山幹晴，梅原徳次，上坂裕之，野老山貴行

日本機械学会東海支部第41回学生員卒業研究発表講演会     page： 236-237   2010.3

The effect of atmosphere gas on ultra-low friction of CNx coating

Miyahira, Y., Tokoroyama, T., Umehara, N., Fuwa, Y.

Proceedings of Mechanical Engineers Tokai Branch 59th annual meeting     page： 295-296   2010.3

Effect of ultraviolet ray irradiation on tribological properties of diamond-like carbon coating

Hatano, T., Tokoroyama, T., Umehara, N., Fuwa, Y.,

Proceedings of Mechanical Engineers Tokai Branch 59th annual meeting     page： 289-290   2010.3

Friction reduction between elastomers and plastics under unlubricated condition

Usami, K., Kousaka, H., Tokoroyama, T., Nitta, I., Umehara, N.

Proceedings of Mechanical Engineers Tokai Branch 59th annual meeting     page： 297-298   2010.3

Ultraviolet ray irradiation effect on frictional behavior of Carbon Nitride coating

Tokoroyama, T., Kamiya, M., Fuwa, Y., Umehara, N.

Proceedings of ISPlasma2010     page： 152   2010.3

Effect of nitrogen content on friction coefficient of Si-containing hydrogenated Carbon Nitride film deposited by plasma-enhanced chemical vapor deposition

Sakakibara, H., Kousaka, H., Tokoroyama, T., Umehara, N., Fuwa, Y.

Proceedings of ISPlasma2010     page： 161   2010.3

Photochemical fluorination for friction reduction between thermoplastic elastomers and plastics under unlubricated condition

Usami, K., Kousaka, H., Tokoroyama, T., Nitta, I., Umehara, N.

Proceedings of Mechanical Engineering Congress, 2009 Japan     page： 1-2   2009.10

The effect of unsaturated fatty acids on friction coefficient of Carbon Nitride coatings sliding against Si3N4 balls Reviewed

Takayuki Tokoroyama, Yuichiro Ogawa, Noritsugu Umehara, Yoshio Fuwa

Proceedings of World Tribology Congress Ⅳ(Kyoto)     page： 688   2009.9

Effect of surface wettability on friction behaviors of nano-patterned surface of diamond-like carbon films

Young-Jun Jang, Jong-Joo Rha, Takayuki Tokoroyama, Hiroyuki Kousaka, Noritsugu Umehara

Proceedings of World Tribology Congress Ⅳ(Kyoto)     page： 401   2009.9

The effect of Ultraviolet ray irradiation on frictional behavior of Carbon Nitride coating in nitrogen gas Reviewed

Takayuki Tokoroyama, Makoto Kamiya, Yoshio Fuwa, Noritsugu Umehara

Proceedings of World Tribology Congress Ⅳ(Kyoto)     page： 399   2009.9

The effect of Ultraviolet ray irradiation on CNx coating's tribological property Reviewed

Takayuki Tokoroyama, Makoto Kamiya, Yoshio Fuwa, Noritsugu Umehara

Proceedings of 2009 JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment(Tsukuba)     page： 87-88   2009.6

Hardness improvement of DLC films deposited by plasma CVD using adamantane as precursor material

S. Moroto, H. Kousaka, T. Tokoroyama, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 272   2009.6

AFM Scratchi Test for the Clarification of Ultra Low Friction Mechanism of CNx Coating

N. Kimura, Y. Tsukiyama, T. Tokoroyama, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 158   2009.6

Effect of Thickness on Frictional Properties of CNx

R. Saito, T. Tokoroyama, N. Umehara, Y. Fuwa

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 156   2009.6

Improvement of Tribological Properties of Diamond-like Catbon Coating with Ultraviolet Ray Irradiation

T. Hatano, T. Tokoroyama, Y. Fuwa, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 155   2009.6

Ultra-low Friction Mechanism of CNx Coating in Nitrogen

Y. Miyahira, T. Tokoroyama, H. Kousaka, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 152   2009.6

Photochemical Fluorination for Friction Reduction between Thermoplastic Elastomers and Plastics under Unlubricated Condition

K. Usami, H. Kousaka, T. Tokoroyama, I. Nitta, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 151   2009.6

Ultraviolet Ray Irradiation Effect on Frictional Property of Carbon Nitride Coating

T. Tokoroyama, M. Kamiya, Y. Fuwa, N. Umehara

The 3rd International Conference on Manufacturing, Machine Design and Tribology(Jeju island)     page： 149   2009.6

Ultraviolet Ray Irradiation to Topmost Layer of CNx Coating to Chang the Frictional Characteristics

Takayuki Tokoroyama, Makoto Kamiya, Noritsugu Umehara, Yoshio Fuwa

    page： 223-224   2009.5

Influence of Ultraviolet irradiation on CNx coating's tribological characteristics Reviewed

Makoto Kamiya, Takayuki Tokoroyama, Yoshio Fuwa, Noritsugu Umehara

    page： 199-200   2009.3

Basic study of friction reduction between thermoplastic elastomers and plastics under unlubricated condition

Keisuke Usami, Hiroyuki Kousaka, Noritsugu Umehara, Takayuki Tokoroyama

    page： 191-192   2008.9

Tribological properties in nitrogen gas of carbon nitride films deposited by plasma CVD

Yoshiyasu Tamanaha, Hiroyuki Kousaka, Noritsugu Umehara, Takayuki Tokoroyama

    page： 189-190   2008.9

Superlow friction phenomena of CNx coating under unsaturated fatty acids slid against Si3N4 ball

Takayuki Tokoroyama, Yuichiro Ogawa, Noritsugu Umehara, Yoshio Fuwa

    page： 203-204   2008.9

The evaluation of fracture energy at the interface between grilled fish protein and metal

Yuki Miyahira, Naoko Honda, Noritsugu Umehara, Takayuki Tokoroyama

    page： 457-458   2008.9

Running-in behavior in sliding contact between DLC coated surface and lead-free metal with low-viscosity lubricant

M. GOTO, M. NONOGAKI, T. TOKOROYAMA, T. NAKAHARA

Institution of Mechanical Engineers     page： 1-4   2008.7

Tribological properties of Carbon Nitride coating sliding under several surface-active agent

Takayuki Tokoroyama, Yuichiro Ogawa, Noritsugu Umehara, Yoshio Fuwa

Proceedings of JAST Tribology Conference Tokyo, May 2008     page： 243-244   2008.5

Tribological behavior of CNx coating at elevated temperatures in ambient air

Yuya Yoshikawa, Takayuki Tokoroyama, Noritsugu Umehara

    page： 155-156   2008.4

The effect of amorphous Carbon overcoat on tribological property of CNx coating

Wang Huaipeng, Takayuki Tokoroyama, Yoshio Fuwa, Noritsugu Umehara

    page： 159-160   2008.3

プラズマCVDで成膜された窒化炭素膜の窒素雰囲気中摩擦特性

玉那覇喜保，上坂裕之，野老山貴行，梅原徳次

第55回応用物理学関係連合講演会講演予稿集(日本大学船橋)   Vol. 2   page： 605   2008.3

Strength at the interface of aligned carbon nanotube film produced by surface decomposition of SiC

Yosuke Tsukiyama, Emmanuel Audras, Takayuki Tokoroyama, Michiko Kusunoki, Noritsugu Umehara

    page： 167-168   2008.3

Tribological behavior of CNx coating at elevated temperatures in ambient air

Yuya Yoshikawa, Takayuki Tokoroyama, Noritsugu Umehara

    page： 161-162   2008.3

Super low friction with CNx coating under oil lubrication

Yuichiro Ogawa, Takayuki Tokoroyama, Noritsugu Umehara, Yoshio Fuwa

    page： 155-156   2008.3

In-situ analysis of the tribochemical reaction of CNx by FTIR

Shingo Kanda, Takayuki Tokoroyama, Noritsugu Umehara, Yoshio Fuwa

    page： 157-158   2008.3

Sharpness evaluation method by pulling force measurement of artificial hair into shaver

Takayuki TOKOROYAMA, Norhaswira MOHD, Noritsugu UMEHARA

Proceedings of ABrasive TEchnology Conference 2007     page： 205-206   2007.9

A consideration on the wear mechanism of DLC film sliding against soft metals

H. Nobuki, M. Goto, T. Tokoroyama, T. Ikari

Proceedings of JAST Tribology Conference Saga, September 2007     page： 85-86   2007.9

A study of the frictional products on CNx surface sliding against soft metals by Auger electron spectroscopy

K. Matsumoto, M. Goto, T. Tokoroyama, T. Ikari

Proceedings of JAST Tribology Conference Saga, September 2007     page： 203-204   2007.9

In situ analysis of the tribochemical reaction of CNx by FT-IR

T. Tokoroyama, S. Kanda, N. Umehara, Y. Fuwa

Proceedings of JAST Tribology Conference Saga, September 2007     page： 201-202   2007.9

Influence of the thickness of carbon overcoat on CNx coating for the friction properties

H.P. Wang, T. Tokoroyama, N. Umehara, and Y. Fuwa

Proceedings of JAST Tribology Conference Saga, September 2007     page： 199-200   2007.9

Effect of nitrogen atoms included in CNx coatings on friction sliding against Si3N4 ball in nitrogen gas

Takayuki TOKOROYAMA, Noritsugu UMEHARA

Proceedings of Mechanical Engineering Congress, 2007 Japan Vol.7   Vol. 7   page： 249-250   2007.9

The Effect of Nitrogen Atoms Included in CNx coating on Friction Sliding Against Si3N4 Ball in Nitrogen Gas

T. Tokoroyama, M. Goto, F. Honda, N. Umehara

Proceedings of International Conference on Metallurgical Coatings and Thin Films(San Diego)     page： 38   2007.4

Measurement of Shearing Strength at the Interface of Carbon Nanotube Film Synthesized by Surface Decomposition of Silicon Carbide

Emmanuel Audras, Yosuke Tsukiyama, Takayuki Tokoroyama, Michiko Kusunoki, and Noritsugu Umehara

Proceedings of International Conference of Manufacturing, Machine Design and Tribology 2007(Korea)     page： 57   2007

The Evaluation of Fracture Energy at the Interface between Baked Fish Protein and Metal

Naoko Honda, Takayuki Tokoroyama, Noritsugu Umehara, Ryusei Ohashi, Akira Hanafusa

International Conference of Manufacturing, Machine Design and Tribology 2007(Korea)     page： 64   2007

Sharpness Evaluation Method by Pulling Force Measurement of Artificial Hair into Shaver

Takayuki Tokoroyama, Norhaswira Mohd, Noritsugu Umehara

International Conference of Manufacturing, Machine Design and Tribology 2007(Korea)     page： 63   2007

Tribology Properties of Carbon-Overcoated CNx

Huaipeng Wang, Takayuki Tokoroyama, Noritsugu Umehara, Yoshio Fuwa

International Conference of Manufacturing, Machine Design and Tribology 2007(Korea)     page： 58   2007

Surface Analysis of Friction Scar of CNx with FT-IR

Shingo Kanda, Takayuki Tokoroyama, Yoshio Fuwa, Noritsugu Umehara

International Conference of Manufacturing, Machine Design and Tribology 2007(Korea)     page： 57   2007

Friction of CNx coating against Si3N4 ball in oil

Y. Ogawa, T. Tokoroyama, N. Umehara, Y. Fuwa

Proceedings of The Third Asia International Conference on Tribology(Kanazawa)     page： 299-300   2006

Effect of Nitrogen desorption on the friction of the CNx coating against Si3N4 ball in Nitrogen gas

T. Tokoroyama, N. Umehara, M. Goto, F. Honda

Proceedings of The Third Asia International Conference on Tribology(Kanazawa)     page： 769-770   2006

Wear properties and its mechanism of CNT on SiC

Y. Tsukiyama, T. Tokoroyama, N. Umehara, M. Kusunoki, H. Usami

Proceedings of The Third Asia International Conference on Tribology(Kanazawa)     page： 351-352   2006

Effect of the applied electric field on the friction of the CNx coating against Si3N4 ball in air

Y. Yoshikawa, T. Tokoroyama, N. Umehara

Proceedings of The Third Asia International Conference on Tribology(Kanazawa)     page： 349-350   2006

CNx膜を有するスラスト気体・すべり軸受の摩擦摩耗特性

冨田博嗣，角田耕一，野老山貴行，梅原徳次

日本トライボロジー学会トライボロジー会議予稿集(春東京)     page： 347-348   2006

砥粒を分散した粒子分散型流体を用いた電場援用研磨の基礎研究

野老山貴行，城間博行，赤上陽一，梅原徳次

日本機械学会第６回生産加工・工作機械部門講演会講演論文集(逗子)     page： 231-232   2006

砥粒を分散した粒子分散型流体を用いた電場援用研磨の基礎研究

野老山貴行，城間博行，赤上陽一，梅原徳次

砥粒加工学会学術講演会論文集(横須賀)     page： 293-296   2006

AFMを用いたCNx膜のSi3N4探針との付着力に及ぼす窒素中摩擦の影響

野老山貴行，梅原徳次

日本機械学会第６回機素潤滑設計部門講演会論文集(宮城松島)     page： 165-166   2006

Effect of the shear strength of coating of CNx on friction sliding against Si3N4 pin in Nitrogen

Takayuki Tokoroyama, Noritsugu Umehara, Yoshiro Fuwa

Proceedings of World Tribology Congress Ⅲ(Washington D.C.)     page： 33   2005

Theoretical friction coefficient of CNx in nitrogen on the basis of the shearing strength of surface layer,

Takayuki Tokoroyama, Takashi Nakamura, Noritsugu Umehara

Proceedings of the International Tribology Conference Kobe 2005     page： 200-201   2005

Measurement of adhesive and shearing strength on the surface layer of CNx coating with micro scratch

Takayuki Tokoroyama, Takashi Nakamura, Noritsugu Umehara

Proceedings of International Conference on Manufacturing machine Design and Tribology 2005 Seoul     page： TTM-201   2005

窒化炭素膜のライフサイクルアセスメント

野老山貴行，モハマドズハイリ，梅原徳次，冨田博嗣，竹之下雪徳，小沢秀夫

日本機械学会第４回機素潤滑設計部門講演会講演論文集(岩手繋)     page： 203-204   2004

CNx膜の超低摩擦発現メカニズムへの軟質薄膜摩擦理論の適用

野老山貴行，梅原徳次

日本機械学会2004年度年次大会講演論文集（Ⅶ）(北海道)     page： 327-328   2004

CNx膜の窒素中超低摩擦現象に及ぼす相手材へのCNx成膜の影響

野老山貴行，梅原徳次，広中清一郎

日本機械学会2003年度年次大会講演論文集(徳島)     page： 135-136   2003

CNx膜の摩擦特性に及ぼす雰囲気ガスの影響

野老山貴行，梅原徳次，冨田博嗣，竹之下雪徳

日本トライボロジー学会トライボロジー会議予稿集(秋新潟)     page： 265-266   2003

CNx膜を有する気体・すべり軸受のすべり摩擦における負荷荷重の影響

冨田博嗣，角田耕一，小沢秀夫，竹之下雪徳，野老山貴行，梅原徳次

日本トライボロジー学会トライボロジー会議予稿集(春東京)     page： 329-330   2003

イオンビーム法により種種の原料から作製したDLC膜の摩擦特性

豊嶋秀幸，広中清一郎，野老山貴行，鈴木雅裕，田中章浩

日本トライボロジー学会トライボロジー会議予稿集(春東京)     page： 257-258   2003

CNx膜をコーティングしたスラスト軸受の窒素中における超低摩擦現象

梅原徳次，野老山貴行，冨田博嗣，竹之下雪徳

日本トライボロジー学会トライボロジー会議予稿集（秋仙台）     page： 79-80   2002

Effect of surface roughness of mating surface and transfer layer on friction between a-CNx and Si3N4 in nitrogen Reviewed

Noritsugu Umehara, Takayuki Tokoroyama, Hirotsugu Tomita, Yukinori Takenoshita

Proceedings of The Second Asia International Conference on Tribology     page： 155-156   2002

CNx膜を有する気体・すべり軸受における超低摩擦現象

冨田博嗣，角田耕一，小沢秀夫，竹之下雪徳，野老山貴行，梅原徳次

日本トライボロジー学会トライボロジー会議予稿集(秋仙台)     page： 241-242   2002

Effect of surface roughness of mating surface and transfer layer on friction between a-CNx and Si3N4 in nitrogen

Noritsugu Umehara, Takayuki Tokoroyama, Hirotsugu Tomita, Yukinori Takenoshita

Proceedings of The Second Asia International Conference on Tribology(Jeju island)     page： 155-156   2002

Effect of surfaace roughness of mating ceramic parts for ultralow friction phenomena in sliding between CNx and ceramics

Takayuki Tokoroyama, Noritsugu Umehara

JSME Millennium   ( 3 ) page： 115-116   2001.8

秋田大学学術支援基金援助

2016.4 - 2017.3

学内共同研究 

中部電気利用基礎研究助成

2016.4 - 2017.3

学内共同研究 

天田財団研究助成

2015.10

学内共同研究 

秋田県産学官連携促進事業（フィージビリティスタディ支援事業）

2015.7 - 2016.3

学内共同研究 

NSKメカトロニクス技術高度化財団研究助成

2015.4

学内共同研究 

公益財団法人JKA自転車等機械工業振興事業に関する補助事業

2014.4 - 2015.3

学内共同研究 

グローバルCOEプログラムによる若手研究者研究活動経費

2012.4 - 2013.3

学内共同研究 

大澤科学技術財団助成

2011.4 - 2012.3

出資金による受託研究 

シーズ発掘

2008.4 - 2009.3

出資金による受託研究 

太田工学研究国際交流助成

2007.4

出資金による受託研究 

名古屋大学学術振興基金

2006.4 - 2014.3

学内共同研究 

COEプログラム若手研究者研究活動経費

2006.4 - 2014.3

学内共同研究 

Propose of design mehod for log life ultra low friction for transition metals doped DLC

Grant number：24K00788  2024.4 - 2027.3

Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

The development for graphite domain direction mesurement of carbonaceous hard coating topmost surface via electric direction controlled SERS

Grant number：23H01327  2023.4 - 2026.3

Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

The development for graphite domain direction mesurement of carbonaceous hard coating topmost surface via electric direction controlled SERS

Grant number：23K26022  2023.4 - 2026.3

Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

The challenge of frost generation preventing surface by using high thermal conductive micro-plastic texturing

Grant number：20K20530  2020.7 - 2023.3

Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Pioneering)

Tokoroyama Takayuki

Development of design proposal for ultla low friction by controlling of permittivity of nano transformed layer and adsorbed lubricants on carbonaceous hard coating

Grant number：18H03751  2018.4 - 2022.3

Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

Umehara Noritsugu

The challenge of an alternative lubrication material synthesizing by multiplying DNA under PCR method

Grant number：17K18818  2017.6 - 2019.3

Grant-in-Aid for Challenging Research (Exploratory)

Tokoroyama Takayuki

The effect of oil aditives on the wear of DLC and its in-situ obserbation by fluorescent light emission method

Grant number：16H04252  2016.4 - 2019.3

Tokoroyama Takayuki

Fabrication of metallic nanocoil networks using mechanical self-assembly and its application to transparent functional films

Grant number：15H03887  2015.4 - 2018.3

MURAOKA Mikio

Development of Smart Tribosystem with Friction Induced Transformed Thin Layers

Grant number：25220902  2013.5 - 2018.3

Umehara Noritsugu