Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761409 | Cephem derivatives | Hirotada Yamada, Naruhito Masai, Shinji Ueda, Takao Okuda, Masuhiro Kato +1 more | 1988-08-02 |
| 4705784 | Cephem compounds | Hirotada Yamada, Naruhito Masai, Sinji Ueda, Takao Okuda, Masatomo Fukasawa +1 more | 1987-11-10 |