Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Yushi Hasegawa"'
Autor:
Yasuo Suda, Fumiaki Okazaki, Yushi Hasegawa, Seiji Adachi, Koichi Fukase, Susumu Kokubo, Seiki Kuramitsu, Shoichi Kusumoto
Publikováno v:
PLoS ONE, Vol 7, Iss 7, p e35067 (2012)
The structural characterization of glycolipids from Thermus thermophilus HB8 was performed in this study. Two neutral and one acidic glycolipids were extracted and purified by the modified TLC-blotting method, after which their chemical structures we
Externí odkaz:
https://doaj.org/article/8edbfecc0af1416a93cec8f5c7f20b28
Autor:
Hirofumi Takikawa, Masao Kamiya, Tsuyoshi Tanimoto, Mikio Ito, Toru Harigai, Makoto Taki, Yushi Iijima, Shinsuke Kunitsugu, Takahiro Imai, Yoshiyuki Suda, Ryo Isono, Satoru Kaneko, Yushi Hasegawa
Publikováno v:
Vacuum. 167:536-541
Fluorinated diamond-like carbon (F-DLC) films have good surface properties. DLC films with high mechanical hardness are prepared using filtered arc deposition, which is a physical vapor deposition method. In this work, the fabrication of F-DLC films
Autor:
Hideto Tanoue, Yushi Hasegawa, Yuma Fujii, Hirofumi Takikawa, Yoshiyuki Suda, Satoru Kaneko, Yu Miyamoto, Takahiro Imai, Michinari Hosoo, Nobuhiro Tsuji, Toru Harigai, Naomi Ueda, Makoto Taki, Masao Kamiya
Publikováno v:
Surface and Coatings Technology. 307:1029-1033
Tetrahedral amorphous carbon (ta-C) films were prepared on cutters which are used for engraving. Engraving tests were performed on metal plates using non-coated and ta-C-coated cutters, under dry machining conditions, without oil. Generally, the meta
Publikováno v:
Surface and Coatings Technology. 206:1003-1006
Because high density DLC (HD-DLC) films prepared using filtered arc deposition (FAD) systems possess high hardness, low friction coefficients, and a smooth surface, they have been good candidates for use in tribological applications. The aim of prese
Autor:
Masao Kamiya, Yushi Hasegawa, Yoshiyuki Suda, Taichiro Yanagita, Hideto Tanoue, Takeshi Ishikawa, Hirofumi Takikawa, Makoto Taki
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 131:139-144
Electromagnetically pulled-out gas plasma (EPOP) gun was developed, which will be applied to the filtered arc deposition system in order to enhance the nitriding of preparing thin film under medium vacuum. A hot cathode of tungsten (W) filament was e
Autor:
Haruyuki Yasui, Shinichiro Oke, Masao Kamiya, Hirofumi Takikawa, Takeshi Ishikawa, Yoshiyuki Suda, Hideto Tanoue, Yushi Hasegawa, Nobuhiro Tsuji, Hideo Takahashi, Shuji Temmei, Makoto Taki
Publikováno v:
Thin Solid Films. 518:3546-3550
Substrate etching by means of Ar-mixed graphite-cathodic-arc plasma beam was investigated in a newly-developed compact-type μT-FAD. The surface level and roughness change were measured as a function of the Ar gas flow rate, when Ar gas was introduce
Autor:
Masao Kamiya, Shinsuke Kunitsugu, Toru Harigai, Sam Yick, Yushi Iijima, Avi Bendavid, Phil J. Martin, Takahiro Imai, Satoru Kaneko, Ryo Isono, Hitoe Habuchi, Shuji Kiyohara, Yushi Hasegawa, Mikio Ito, Nobuhiro Tsuji, Yoshiyuki Suda, Hirofumi Takikawa, Makoto Taki
Publikováno v:
Japanese Journal of Applied Physics. 57:01AE07
Diamond-like carbon (DLC) films, which are amorphous carbon films, have been used as hard-coating films for protecting the surface of mechanical parts. Nitrogen-containing DLC (N-DLC) films are expected as conductive hard-coating materials. N-DLC fil
Autor:
Takeshi Ishikawa, Hirofumi Takikawa, Haruyuki Yasui, Yushi Hasegawa, Shinichiro Oke, Hideto Tanoue, Masao Kamiya, Makoto Kano, Yoshiyuki Suda, Masao Kumagai, Makoto Taki
Publikováno v:
Applied Surface Science. 255:7780-7785
A new technique to etch a substrate as a pre-treatment prior to functional film deposition was developed using a filtered vacuum arc plasma. An Ar-dominated plasma beam was generated from filtered carbon arc plasma by introducing appropriate flow rat
Publikováno v:
Vacuum. 83:510-514
Different types of diamond-like carbon (DLC) films (ta-C, a-C, ta-C:H and a-C:H) were prepared on super hard alloy (WC-Co) substrate using a T-shape filtered arc deposition (T-FAD) system. At first, the film properties, such as structure, hydrogen co
Autor:
Yushi Hasegawa, Takayuki Mashiki, Makoto Taki, Masao Kamiya, Hideto Tanoue, Masao Kumagai, Hirofumi Takikawa, Hiroki Hikosaka
Publikováno v:
Thin Solid Films. 516:6650-6654
A Y-shape filtered-arc-deposition system, which has two arc sources and a common plasma-transport-duct, was operated under nitrogen gas, and a titanium aluminum nitride (TiAlN) thin film was prepared with Ti and Al cathodes. Two filtered-arc plasma b