Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996312 | Porphyrin derivatives, and their production and use | Isao Sakata, Susumu Nakajima, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata +3 more | 1991-02-26 |
| 4849207 | Porphyrin derivatives | Isao Sakata, Susumu Nakajima, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata +3 more | 1989-07-18 |
| 4604241 | 9-desoxo-9-hydroxy-pheophorbide derivatives and alkaline salts thereof | Isao Sakata, Susumu Nakajima, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata | 1986-08-05 |