Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473557 | "3""-Deoxystreptomycin production thereof and pharmaceutical compositions containing same" | Hamao Umezawa, Tsutomu Tsuchiya, Takayuki Usui | 1984-09-25 |
| 4469683 | "3""-Epistreptomycin and its dihydro derivative, pharmaceutical compositions and production of the same" | Hamao Umezawa, Tsutomu Tsuchiya, Tetsuo Shitara, Shuichi Sakamoto | 1984-09-04 |
| 4455419 | 2'-Modified kanamycins and production thereof | Hamao Umezawa, Yoshiharu Ishido, Shunzo Fukatsu | 1984-06-19 |
| 4438109 | Tylosin derivatives | Hamao Umezawa, Tsutomu Tsuchiya, Akihiro Tanaka | 1984-03-20 |
| 4438107 | Aminoglycosides and use thereof | Isamu Watanabe, Takashi Yamaguchi, Kazuhiro Kamiya, Toshihito Mori, Hamao Umezawa +1 more | 1984-03-20 |
| 4359572 | Process for the production of 3'-deoxykanamycin A and intermediate product | Hamao Umezawa, Shunzo Fukatsu, Toshio Yoneta | 1982-11-16 |
| 4357465 | 3',4'-Diedeoxykanamycin B derivatives | Hamao Umezawa, Shigeo Seki, Shunzo Fukatsu, Shuntaro Yasuda | 1982-11-02 |
| 4357466 | Processes for the production of 3'-deoxykanamycin A and intermediates | Hamao Umezawa, Tsutomu Tsuchiya, Tomo Jikihara | 1982-11-02 |
| 4349666 | Process for the production of kanomycin B derivatives and products obtained therefrom | Hamao Umezawa, Tsutomu Tsuchiya, Toshiaki Miyake | 1982-09-14 |
| 4337336 | Derivative of kanamycin A and a process for the preparation thereof | Hamao Umezawa, Shunzo Fukatsu, Toshio Yoneta, Tadashi Wakazawa | 1982-06-29 |
| 4298727 | 3',4'-Dideoxykanamycin A and 1-N-(S)-.alpha.-hydroxy-.omega.-aminoalkanoyl) derivatives thereof | Hamao Umezawa, Tsutomu Tsuchiya, Tomo Jikahara, Toshiaki Miyake | 1981-11-03 |
| 4297485 | Production of a selectively protected N-acylated derivative of an aminoglycosidic antibiotic | Hamao Umezawa, Tsutomu Tsuchiya, Yasushi Takagi, Tomo Jikihara | 1981-10-27 |
| 4255564 | Novel macrolactone derivatives and process of producing them | Hamao Umezawa, Kuniaki Tatsuta | 1981-03-10 |
| 4196280 | Novel macrolactone derivatives and process of producing them | Hamao Umezawa, Kuniaki Tatsuta | 1980-04-01 |
| 4195170 | 3',4'-Episulfido kanamycin B compounds | Hamao Umezawa, Shigeo Seki, Shunzo Fukatsu, Shuntaro Yasuda | 1980-03-25 |