Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527781 | 4-O-(aminoglycosyl)- or 4,6-di-O-(aminoglycosyl)-2,5-dideoxy-5,5-difluorostreptamine derivatives | Tomio Takeuchi, Sumio Umezawa, Tsutomu Tsuchiya, Tetsuo Shitara, Eijiro Umemura | 1996-06-18 |
| 4870207 | Synthesis of arphamenine A | Hamao Umezawa, Takaaki Aoyagi, Kuniaki Tatsuta, Takeshi Nakamura | 1989-09-26 |
| 4839350 | Cephalosporin compounds and the production thereof | Kunio Atsumi, Kenji Sakagami, Yuichi Yamamoto, Takashi Yoshida, Ken Nishihata +1 more | 1989-06-13 |
| 4791197 | Cephalosporin compounds | Kenji Sakagami, Kunio Atsumi, Ken Nishihata, Takashi Yoshida | 1988-12-13 |
| 4785090 | Cephalosporin derivatives | Takashi Tsuruoka, Seiji Shibahara, Katsuyoshi Iwamatsu, Tsuneo Okonogi, Satoru Nakabayashi +6 more | 1988-11-15 |
| 4783415 | Gene coding for signal peptides and utilization thereof | Shigeru Hoshiko, Osamu Makabe, Kozo Nagaoka | 1988-11-08 |
| 4719231 | 3-[N-(mercaptoacyl)]amino-4-arylbutanoic acid derivatives and an analgesic agent comprising the same | Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Mitsugu Hachisu, Masao Hirayama +1 more | 1988-01-12 |
| 4687769 | 3-(3,3,3-trifluoropropenyl) cephalosporins | Yuichi Yamamoto, Takashi Yoshida, Toshiyasu Ishimaru | 1987-08-18 |
| 4645769 | 1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same | Seiji Shibahara, Tsuneo Okonogy, Yasushi Murai, Taro Niida, Burton G. Christensen +1 more | 1987-02-24 |
| 4556513 | Process for the production of antibiotic 1-oxadethiacephalosporins, and intermediate | Seiji Shibahara, Tsuneo Okonogi, Yasushi Murai, Taro Niida, Tadashi Wakazawa | 1985-12-03 |
| 4547492 | 1-N-(.omega.-Amino-.alpha.-hydroxyalkanoyl-2',3'-dideoxykanamycin A and pharmaceutical composition containing same | Hamao Umezawa, Sumio Umezawa, Tsutomu Tsuchiya, Toshio Yoneta | 1985-10-15 |
| 4534898 | 1-Oxa-1-dethia-cephalosporin derivatives | Seiji Shibahara, Tsuneo Okonogi, Yasushi Murai, Tadashi Wakazawa, Taro Niida +1 more | 1985-08-13 |
| 4510102 | Phosphinic acid esters and process for preparing the same | Nobuto Minowa, Taro Niida, Sadaaki Mase | 1985-04-09 |
| 4499027 | Process for preparing optically active [(3-amino-3-carboxy)propyl-1]_phosphinic acid derivatives | Nobuto Minowa, Kunitaka Tachibana, Taro Niida, Sadaaki Mase | 1985-02-12 |
| 4474764 | 3-Amino-2-hydroxy-4-phenylbutanoic acid derivatives and pharmaceutical composition containing the same | Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Mitsugu Hachisu, Kenji Kawamura +1 more | 1984-10-02 |
| 4473554 | Bestatin-related compounds as immunopotentiator | Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Kenji Kawamura | 1984-09-25 |
| 4472576 | Processes for the production of antibiotic 1-oxadethiacephalosporins | Tadashi Wakazawa, Taro Niida, Yasushi Murai, Tsuneo Okonogi, Seiji Shibahara | 1984-09-18 |
| 4455419 | 2'-Modified kanamycins and production thereof | Hamao Umezawa, Sumio Umezawa, Yoshiharu Ishido | 1984-06-19 |
| 4418070 | Cardiotonic agents | Tsuneo Okonogi, Mitsugu Hachisu, Hiroko Kawashima, Keiko Shitoh, Yasuharu Sekizawa | 1983-11-29 |
| 4395402 | Analgesic agent | Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Mitsugu Hachisu, Kenji Kawamura +1 more | 1983-07-26 |
| 4370318 | Bestatin-related compounds as immunopotentiator | Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Kenji Kawamura | 1983-01-25 |
| 4359572 | Process for the production of 3'-deoxykanamycin A and intermediate product | Hamao Umezawa, Sumio Umezawa, Toshio Yoneta | 1982-11-16 |
| 4357465 | 3',4'-Diedeoxykanamycin B derivatives | Hamao Umezawa, Sumio Umezawa, Shigeo Seki, Shuntaro Yasuda | 1982-11-02 |
| 4337336 | Derivative of kanamycin A and a process for the preparation thereof | Hamao Umezawa, Sumio Umezawa, Toshio Yoneta, Tadashi Wakazawa | 1982-06-29 |
| 4331597 | Penicillin compounds | Osamu Makabe, Yasushi Murai, Tuneo Okonogi, Masahiro Onodera, Takashi Yoshida | 1982-05-25 |