Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452851 | Cephem compounds | Takao Takaya, Hisashi Takasugi | 1984-06-05 |
| 4423213 | 7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof | Takao Takaya, Hisashi Takasugi, Takashi Masugi, Kohji Kawabata | 1983-12-27 |
| 4409214 | 7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof | Takao Takaya, Hisashi Takasugi, Takashi Masugi, Kohji Kawabata | 1983-10-11 |
| 4409215 | 7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof | Takao Takaya, Hisashi Takasugi, Takashi Masugi, Kohji Kawabata | 1983-10-11 |