Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856327 | Pyridazinone derivatives | Keizo Tanikawa, Takashi Matsumoto, Hiroo Matsumoto, Nobutomo Tsuruzoe | 1999-01-05 |
| 5750523 | Pyridazinone derivatives | Keizo Tanikawa, Takashi Matsumoto, Hiroo Matsumoto, Nobutomo Tsuruzoe | 1998-05-12 |