Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876251 | Tricyclic penam compounds, their production and their use | Nobuo Choh, Noriyoshi Noguchi | 1989-10-24 |
| 4851422 | Antibiotic 2-(3-oxo-2-isoxazolidinyl)-5-oxo-2-tetrahydrofuran-carboxylates | Hideaki Natsugari, Yasuhiko Kawano, Kouichi Yoshioka | 1989-07-25 |