Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34878 | Hypoglycemic agent | Shigeshi Toyoshima, Hisashi Shinkai, Koji Toi, Izumi Kamashiro | 1995-03-14 |
| 4816484 | Hypoglycemic agent | Shigeshi Toyoshima, Hisashi Shinkai, Koji Toi, Izumi Kumashiro | 1989-03-28 |
| 4774259 | Phenylalanine derivatives and uses thereof | Koji Fukushima, Kazuhiro Kawada, Koji Toi, Izumi Kumashiro | 1988-09-27 |
| 4714713 | Phenylalanine derivatives and uses thereof | Koji Fukushima, Kazuhiro Kawada, Koji Toi, Izumi Kumashiro | 1987-12-22 |
| 4670584 | Pharmaceutical composition having an excellent absorption property | Shigeshi Toyoshima, Koji Fukushima, Izumi Kumashiro | 1987-06-02 |
| 4650785 | Pharmaceutical composition having an excellent absorption property | Shigeshi Toyoshima, Koji Fukushima, Izumi Kumashiro | 1987-03-17 |