Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616441 | Tryptoanthorine derivative contained in electrophotosensitive material | Hirofumi Kawaguchi, Syunichi Matsumoto, Nobuko Akiba, Toshiyuki Fukami, Ichiro Yamazato +2 more | 1997-04-01 |