Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312297 | O-substituted serine derivative production method | — | 2025-05-27 |
| 8088916 | Hyaluronic acid-methotrexate conjugate | Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Tatsuya Tamura, Akira Okamachi +2 more | 2012-01-03 |
| 7807675 | Hyaluronic acid-methotrexate conjugate | Hitoshi Ikeya, Tadashi Morikawa, Koichi Takahashi, Noriyuki Izutani, Tatsuya Tamura +5 more | 2010-10-05 |
| 7612070 | Indole derivative having heterocycle and mono- or diazaindole derivative | Hiroharu Matsuoka, Nobuaki Kato, Tadakatsu Takahashi, Noriaki Maruyama, Yukio Suzuki | 2009-11-03 |
| 6875770 | Indole derivative having heterocycle and mono- or diazaindole derivative | Hiroharu Matsuoka, Nobuaki Kato, Tadakatsu Takahashi, Noriaki Maruyama, Yukio Suzuki | 2005-04-05 |
| 6673797 | Heterocyclic indole derivatives and mono- or diazaindole derivatives | Hiroharu Matsuoka, Nobuaki Kato, Tadakatsu Takahashi, Noriaki Maruyama, Yukio Suzuki | 2004-01-06 |
| 6455708 | Processes for the preparation of 4-substituted benzopyran derivatives | Yukio Suzuki, Vladimir Khlebnikov, Masashi Watanabe | 2002-09-24 |
| 5977167 | Benzopyran and benzoxazine derivatives | Hiroshi Koga, Haruhiko Sato, Hiroyuki Nabata | 1999-11-02 |
| 5874446 | Benzopyran derivatives | Hiroshi Koga, Haruhiko Sato, Hiroyuki Nabata | 1999-02-23 |
| 5646310 | N-(2-cyanoethyl)-6-fluoroalkyl-2h-1-benzopyran derivatives | Hiroshi Koga, Haruhiko Sato | 1997-07-08 |
| 5614633 | Benzopyran derivatives | Hiroshi Koga, Haruhiko Sato, Hiroyuki Nabata | 1997-03-25 |