Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7781483 | Benzopyran compound | Takayuki Nagatsuka, Tomoyuki Matsuda, Norio Hashimoto | 2010-08-24 |
| 7041700 | Substituted benzopyran derivatives against arrhythmia | Yoshio Ohara, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Yamashita | 2006-05-09 |
| 6809114 | 4-aminobenzopyran derivatives | Yoshio Ohara, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Yamashita | 2004-10-26 |
| 6677371 | 4-oxybenzopyran derivative | Keizo Tanikawa, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Yamashita | 2004-01-13 |
| 6589983 | Benzopyran derivative | Keizo Tanikawa, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Yamashita | 2003-07-08 |
| 6555574 | 4-oxybenzopyran derivative | Keizo Tanikawa, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Yamashita | 2003-04-29 |