Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698590 | Prostaglandin derivatives | Akio Nishiura, Ryoji Matsumoto, Shin-ichi Hamano | 1997-12-16 |
| 5690957 | Prostaglandin derivatives | Akio Nishiura, Ryoji Matsumoto, Shin-ichi Hamano | 1997-11-25 |