Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773613 | Tryptoanthrinimine derivative and electrophotosensitive material using the same | Hirofumi Kawaguchi, Nobuko Akiba, Yukimasa Watanabe, Yasuyuki Hanatani, Yasufumi Mizuta +7 more | 1998-06-30 |
| 5521044 | Electrophotosensitive material | Nariaki Muto, Keisuke Sumida, Tsuneo Oki, Eiichi Miyamoto, Yasuyuki Hanatani +1 more | 1996-05-28 |
| 5500261 | Resin composition and a container | Shinobu Takei, Shoji Ohtani, Tetsuhiro Ohsawa, Yasunori Hosokowa | 1996-03-19 |
| 5336576 | Electrophotographic photosensitive member having a photosensitive layer comprising the azo compound | Eiichi Miyamoto, Yasuyuki Hanatani, Yasufumi Mizuta, Akihiko Kawahara | 1994-08-09 |
| 5288576 | Electrophotographic member having an azo compound with diphenoquinone | Eiichi Miyamoto, Yasuyuki Hanatani, Yasufumi Mizuta, Akihiko Kawahara | 1994-02-22 |
| 5274084 | Bisazo compounds which contain a diphenoquinone tetraazo component and an electrophotographic photosensitive member having a photosensitive layer comprising the bisazo compound | Eiichi Miyamoto, Yasuyuki Hanatani, Yasufumi Mizuta, Akihiko Kawahara | 1993-12-28 |
| 5272031 | Benzidine derivative and photosensitive material using said derivative | Yasuyuki Hanatani | 1993-12-21 |
| 5258251 | Hydrazone compound and photosensitive material using said compound | Yasuyuki Hanatani | 1993-11-02 |
| 5256508 | Hydrazone compound and photosensitive material using said compound | Yasuyuki Hanatani | 1993-10-26 |
| 5246808 | Hydrazone compound and photosensitive material using said compound | Yasuyuki Hanatani | 1993-09-21 |
| 5213926 | Phenylenediamine derivative and photosensitive material using said derivative | Yasuyuki Hanatani | 1993-05-25 |
| 5192633 | Laminate type photosensitive material for electrophotography | Youichi Takesawa, Hiroshi Takemoto, Masashi Tanaka, Keizo Kimoto, Tadashi Sakuma | 1993-03-09 |
| 5185228 | Electrophotosensitive material containing p-benzylbiphenyl | Tatsuo Maeda, Masato Katsukawa, Yasufumi Mizuta | 1993-02-09 |
| 4844041 | Method of controlling the air/fuel ratio for an internal combustion engine mounted on a vehicle | Yoshiharu Ave, Junichi Koseki, Norio Tomobe, Kozo Suzuki | 1989-07-04 |
| 4604984 | Air intake side secondary air supply system for an internal combustion engine | Yoshinobu Isobe | 1986-08-12 |
| 4579099 | Air intake side secondary air supply system for an internal combustion engine | Eiji Kishida, Yoshinobu Isobe | 1986-04-01 |
| 4567873 | Air intake side secondary air supply system for an internal combustion engine | Eiji Kishida, Yoshinobu Isobe | 1986-02-04 |