Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407228 | Method for the preparation of &bgr;-lactam compound | Akihiro Oishi, Isao Shibuya, Tohru Tsuchiya | 2002-06-18 |
| 6403756 | Biodegradable high molecular weight polyester and method of preparing same | Akihiro Oishi, Yoshikazu Ikeda, Ken Fujita, Takashi Masuda | 2002-06-11 |
| 6180751 | Biodegradable aliphatic copolyester and method of preparing same | Akihiro Oishi, Yoshikazu Ikeda, Ken Fujita, Takashi Masuda | 2001-01-30 |
| 6177539 | Aliphatic polyester and process for the production thereof | Akihiro Oishi, Ken Fujita, Yoshikazu Ikeda, Takashi Masuda, Yutaka Ishigami +3 more | 2001-01-23 |
| 5700931 | 7-substituted-2-oxa3.2.0!heptan-6-one compound and method for the preparation thereof | Akihiro Oishi, Isao Shibuya, Tohru Tsuchiya | 1997-12-23 |
| 5677444 | Method for the preparation of .beta.-ketothioamide compound | Tohru Tsuchiya, Isao Shibuya, Akihiro Oishi, Kazumasa Honda | 1997-10-14 |
| 5585487 | Method for the preparation of .beta.-thiolactam compound | Akihiro Oishi, Isao Shibuya, Tohru Tsuchiya | 1996-12-17 |
| 5550230 | 7-Substituted-2-oxa-7-azabicyclo [3.2.0.]heptan-6-one compound and method for the preparation thereof | Akihiro Oishi, Isao Shibuya, Tohru Tsuchiya | 1996-08-27 |
| 5138053 | Method for producing thiadiazine compounds | Masahiko Yasumoto, Touru Tsuchiya, Isao Shibuya, Katsumi Yonemoto | 1992-08-11 |