Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tatsuya Urakawa"'
Autor:
Hidehumi Matsuzaki, Masaru Hori, Kazunori Koga, Giichiro Uchida, Makoto Sekine, Tatsuya Urakawa, Masaharu Shiratani, Yuichi Setsuhara, Daisuke Yamashita
Publikováno v:
Surface and Coatings Technology. 228:S15-S18
In order to obtain high density carbon films with keeping anisotropic deposition profile on trench substrates, we control mass density of carbon films deposited by a H-assisted plasma chemical vapor deposition (CVD) method by ion kinetic energy of io
Autor:
Hisaaki Kudo, Taeko Yoshikawa, Fumiya Shiraki, Tomohiro Takahashi, Tatsuya Urakawa, Takeshi Murakami, Toshitaka Oka, Yuji Oshima, Hajime Fujita, Masakazu Washio, Akihiro Oshima, Naoyuki Fukutake, Yoshimasa Hama, Yuya Takasawa, Tomoko Gowa Oyama
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 269:1777-1781
The graded energy deposition of heavy ion beam irradiation to polymeric materials was utilized to synthesize a novel proton exchange membrane (PEM) with the graded density of sulfonic acid groups toward the thickness direction. Stacked Poly(tetrafluo
Autor:
Tomoko Gowa, Yukari Numata, Takanori Katoh, Akihiro Oshima, Seiichi Tagawa, Yuya Takasawa, Etsuko Katoh, Masakazu Washio, Tomohiro Takahashi, Naoyuki Fukutake, Hiroyuki Nagai, Tatsuya Urakawa, Nozomi Miyoshi
Publikováno v:
Radiation Physics and Chemistry. 80:230-235
Micro- and nano-fabrication researches of various perfluorinated polymers carried out recently both by synchrotron radiation (SR) direct photo-etching and by focused ion beam (FIB) direct mask less etching are reviewed. After the irradiation, the etc
Autor:
Tatsuya Urakawa, Tomoko Gowa, Akihiro Oshima, Masakazu Washio, Yoshimasa Hama, Tomoyuki Shiotsu, Toshitaka Oka, Takeshi Murakami
Publikováno v:
Radiation Physics and Chemistry. 80:264-267
High linear energy transfer (LET) heavy ion beams were used to irradiate poly(tetrafluoroethylene-co-ethylene) (ETFE) under vacuum and in air. The irradiation effects in ETFE as a function of the depth were precisely evaluated by analyzing each of th
Autor:
Ohshima Akihiro, Toshiyuki Hyuga, Tatsuya Urakawa, Nozomi Miyoshi, Takanori Katoh, Hiroyuki Nagai, Masakazu Washio, Katsuyoshi Murata
Publikováno v:
Journal of Photopolymer Science and Technology. 23:381-386
Autor:
Tomoko Gowa, Naoyuki Fukutake, Yoshimasa Hama, Kentaro Hizume, Takashi Kashino, Shigeru Kashiwagi, Ryunosuke Kuroda, Akihiko Masuda, Akihiro Ohshima, Taku Saito, Kazuyuki Sakaue, Kunio Shinohara, Tomohiro Takashi, Tatsuya Urakawa, Kiminori Ushida, Masakazu Washio
Publikováno v:
ResearcherID
Autor:
Kunio Shinohara, Tomoko Gowa, Tatsuya Urakawa, Naoyuki Fukutake, Ryunosuke Kuroda, Shigeru Kashiwagi, Yoshimasa Hama, Kentaro Hizume, Akihiro Ohshima, Kazuyuki Sakaue, A. Masuda, Kiminori Ushida, Tomohiro Takashi, Masakazu Washio, Taku Saito, Takashi Kashino
Publikováno v:
Journal of Photopolymer Science and Technology. 22:691-696
A compact soft X-ray source via inverse Compton scattering has been developed at Waseda University. The energies of the generated X-rays are within "water window" region (250 - 500 eV) and development of a soft X-ray microscope is expected which can
Autor:
Naohiro Mitani, Jingye Li, Etsuko Katoh, Takaharu Miura, Akio Matsuura, Tomoyuki Kakigi, Akihiro Oshima, Yukiko Sato, Kazuki Fujii, Katsuyoshi Murata, Tatsuya Urakawa, Nozomi Miyoshi, Masakazu Washio
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 265:118-124
Poly (tetrafluoroethylene-co-perfluoroalkylvinylether) (PFA) was irradiated by soft electron beam (soft-EB) under nitrogen gas atmosphere in solid-state and its molten state, respectively. The changes of thermal property and chemical structures of ir
Autor:
Hiroyuki Nagai, Toshiyuki Hyuga, Kato Takanori, Naoyuki Fukutake, Masakazu Washio, Tatsuya Urakawa, Nozomi Miyoshi, Akihiro Oshima, Atsushi Mori
Publikováno v:
Journal of Photopolymer Science and Technology. 20:107-112
Micromachining of various polytetrafluoroethylene (sintered PTFE, non-sintered PTFE and expand PTFE) using synchrotron radiation (SR) direct photo-etching has been carried out, and also the etched surface was studied by various analyses. The thin sin
Autor:
Hidefumi Matsuzaki, K. Koga, M. Hori, Tatsuya Urakawa, Yuichi Setsuhara, G. Uchida, Daisuke Yamashita, Ryuhei Torigoe, Makoto Sekine, Masaharu Shiratani
Publikováno v:
2012 Abstracts IEEE International Conference on Plasma Science.
Summary form only given. Hard carbon films have attracted much attention due to their high hardness and wear resistance. Deposition profile of hard carbon films on trench substrates is one of the concerns to realize coatings on such substrates. Here