Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597820 | 1, 4-benzoxazine derivative and pharmaceutical compositions containing the same | Ikuo Watanabe, Hiroshi Ohtaka, Kengo Harada, Joji Maruo, Tominori Morita +2 more | 1997-01-28 |
| 4877790 | Quinazoline derivative, processes for its production, and cerebral dysfunction remedying agent comprising it as active ingredient | Ryuichi Iemura, Hiroshi Ohtaka, Takayuki Sukamoto, Hideaki Hara, Keizo Ito | 1989-10-31 |