Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604063 | Composition for charge transport layer and electrophotographic member using same | Keiichi Endo, Seiji Miyaoka, Kouji Ohkoshi, Susumu Kaneko, Yasuo Katsuya +1 more | 1997-02-18 |
| 5494767 | Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same | Mikio Itagaki, Shigeru Hayashida, Megumi Matsui, Hiroko Ishikawa, Takayuki Akimoto | 1996-02-27 |
| 5403958 | Electrophotographic member | Yasushi Sugimoto, Shigeru Hayashida, Hiroko Ishikawa, Yoshiaki Noda, Shigeru Murakami +4 more | 1995-04-04 |
| 5382687 | Enamine derivatives | Shigeru Hayashida, Yasushi Sugimoto, Hiroko Ishikawa, Hiroshi Kobayashi, Takaaki Sonoda | 1995-01-17 |
| 5378589 | Derivative of naphthalocyanine containing perfluoroalkyl group, process for preparing the same and optical recording medium | Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Mitsuo Katayose, Tadashi Okamoto +1 more | 1995-01-03 |
| 5352834 | Electrophotographic member | Yasushi Sugimoto, Shigeru Hayashida, Hiroko Ishikawa, Yoshiaki Noda, Shigeru Murakami +4 more | 1994-10-04 |
| 5304445 | Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same | Mikio Itagaki, Shigeru Hayashida, Megumi Matsui, Hiroko Ishikawa, Takayuki Akimoto | 1994-04-19 |
| 5272030 | Electrophotographic member comprising enamine derivatives | Shigeru Hayashida, Yasushi Sugimoto, Hiroko Ishikawa, Hiroshi Kobayashi, Takaaki Sonoda | 1993-12-21 |
| 5260435 | Derivative of naphthalocyanine containing perfluoroalkyl group, process for preparing the same and optical recording medium | Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Mitsuo Katayose, Tadashi Okamoto +1 more | 1993-11-09 |
| 5233089 | Enamine derivatives | Yasuo Katsuya, Takayuki Akimoto, Yasushi Shinbo, Akira Kageyama, Shigeru Hayashida | 1993-08-03 |
| 5160487 | Electrophotographic member | Yasushi Sugimoto, Shigeru Hayashida, Hiroko Ishikawa, Yoshiaki Noda, Shigeru Murakami +4 more | 1992-11-03 |