Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773613 | Tryptoanthrinimine derivative and electrophotosensitive material using the same | Hirofumi Kawaguchi, Nobuko Akiba, Yukimasa Watanabe, Hiroaki Iwasaki, Yasuyuki Hanatani +7 more | 1998-06-30 |
| 5705694 | Trinitrofluoroenonimine derivative and electrophotosensitive material using the same | Hirofumi Kawaguchi, Yasufumi Mizuta, Syunichi Matsumoto, Nobuko Akiba, Toshiyuki Fukami +2 more | 1998-01-06 |
| 5616441 | Tryptoanthorine derivative contained in electrophotosensitive material | Hirofumi Kawaguchi, Yasufumi Mizuta, Syunichi Matsumoto, Nobuko Akiba, Toshiyuki Fukami +2 more | 1997-04-01 |
| 5514508 | Electrophotosensitive material | Toshiyuki Fukami, Hideo Nakamori, Hiroshi Shiomi, Hirofumi Kawaguchi, Nariaki Muto +4 more | 1996-05-07 |