Kenji Yasue
Unitika Ltd.
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Publication
Featured researches published by Kenji Yasue.
Molecular Crystals and Liquid Crystals | 2001
Takamasa Akizuki; Hiromasa Shirai; Kenji Yasue; Okihiro Sugihara
Abstract We have developed aromatic polyester (polyarylate) for the optical devices. New polyarylate (PAR-A, PAR-B) are excellent for transparency in the visible spectrum, and thermal stability. We found that the birefringence of PAR-A is very low. PAR films are produced easily by spin-coating or solution-casting, and can be patterned by RIE method. We fabricated ridge waveguides patterned in new polyarylate.
Molecular Crystals and Liquid Crystals | 2000
Okihiro Sugihara; Masahiro Tomiki; Hisashi Fujimura; Chikara Egami; Naomichi Okamoto; Masaaki Fujiwara; Kenji Yasue
Abstract Polyarylates (PARs) with high glass transition temperature (Tg) are used for photonic device applications. Optical properties are investigated, and it indicates that the PARs show high thermal stability as well as high optical transparency. Electron-beam lithography can be performed using the PAR thin films, and high resolution surface relief gratings are fabricated by direct electron-beam writing technique together with thermal development.
Archive | 1987
Takashi Okamoto; Kenji Yasue; Takeshi Marutani; Yasumasa Fukushima
Archive | 1993
Kenji Yasue; Tsuneo Tamura; Shinichiro Katahira; Mioko Watanabe
Archive | 1976
Nakaba Asahara; Hiroyuki Takao; Kenji Yasue
Archive | 1978
Kayomon Kyo; Katsuhiro Hirose; Kenji Yasue; Sinichi Tokumitsu; Haruo Kohyama
Archive | 1991
Minoru Kishida; Yoshiaki Kozuka; Katsuyuki Toma; Eiji Yamamoto; Kenji Yasue; 健治 安江; 佳明 小塚; 英治 山本; 稔 岸田; 克行 当麻
Archive | 1976
Nakaba Asahara; Yasuhiko Asai; Kenji Yasue
Archive | 1992
Kenji Yasue; Eiji Yamamoto; Katsuyuki Toma; Minoru Kishida; Yoshiaki Kozuka
Archive | 1991
Munehiro Miyake; Naomi Takai; Kenji Yasue; Masatake Yoshikawa; 宗博 三宅; 昌毅 吉川; 健治 安江; 直美 高井
