Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822797 | Piperazinyl carbonyl phenyl pyridazinone derivatives useful as cardiotonics | Akihiro Narimatsu, Makio Kobayashi, Rikizo Furuya, Yoshimi Kitada | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822797 | Piperazinyl carbonyl phenyl pyridazinone derivatives useful as cardiotonics | Akihiro Narimatsu, Makio Kobayashi, Rikizo Furuya, Yoshimi Kitada | 1989-04-18 |