Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7964623 | Tricyclic benzopyrane compound | Kazuhiko Ohrai, Yukohiro Shigeta, Osamu Uesugi, Takumi Okada | 2011-06-21 |
| 7781483 | Benzopyran compound | Toru Tsukagoshi, Takayuki Nagatsuka, Norio Hashimoto | 2010-08-24 |
| 7652008 | Tricyclic benzopyran compound as anti-arrhythmic agents | Kazuhiko Ohrai, Yukohiro Shigeta, Osamu Uesugi, Takumi Okada | 2010-01-26 |