Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6746663 | Porphyrin compounds | Isao Sakata, Yoshinori Nakae | 2004-06-08 |
| 6548045 | Nitroimidazole substituted porphyrin complex | Isao Sakata, Yoshinori Nakae | 2003-04-15 |
| 6063777 | Iminochlorinaspartic acid derivatives | Muneo Hikida, Masahiko Mori, Isao Sakata, Hiroyuki Takata | 2000-05-16 |
| 4996312 | Porphyrin derivatives, and their production and use | Isao Sakata, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata +3 more | 1991-02-26 |
| 4849207 | Porphyrin derivatives | Isao Sakata, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata +3 more | 1989-07-18 |
| 4709022 | Pheophorbide derivatives and alkaline salts thereof | Isao Sakata, Koichi Koshimuzi, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata | 1987-11-24 |
| 4604241 | 9-desoxo-9-hydroxy-pheophorbide derivatives and alkaline salts thereof | Isao Sakata, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata | 1986-08-05 |