Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610986 | Aminonaphthacene derivatives and their production | Kikuo Ishizumi, Norihiko Tanno, Hiromi Sato, Noboru Yoshida | 1986-09-09 |
| 4545936 | Novel aminonaphthacene derivatives and process for preparation thereof | Kikuo Ishizumi, Hiromi Sato, Norihiko Tanno, Noboru Yoshida | 1985-10-08 |
| 4540695 | Aminonaphthacene derivatives and their use | Kikuo Ishizumi, Naohito Ohashi | 1985-09-10 |