Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883868 | 7-amino-3-(substituted isoindolinium)methyl-3-cephem derivatives | Susumu Nakagawa, Ryosuke Ushijima, Fumio Nakano, Eiichi Mano | 1989-11-28 |
| 4868159 | Novel substances KS-501 and KS-502 and process for their preparation | Satoshi Nakanishi, Isao Kawamoto, Katsuhiko Ando, Hiroshi Sano, Toru Yasuzawa +1 more | 1989-09-19 |