Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616441 | Tryptoanthorine derivative contained in electrophotosensitive material | Hirofumi Kawaguchi, Yasufumi Mizuta, Syunichi Matsumoto, Nobuko Akiba, Ichiro Yamazato +2 more | 1997-04-01 |
| 5600422 | Image-forming apparatus employing a reversal developing system | Masashi Tanaka, Masato Katsukawa, Hideo Nakamori | 1997-02-04 |