Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420473 | Antibiotic, MF266 substance and production thereof | Hamao Umezawa, Tomio Takeuchi, Masa Hamada, Kiyoto Ishii | 1983-12-13 |
| 4410516 | "1-N(.alpha.Hydroxy-.omega.-aminoalkanoyl) derivatives of 5,3',4'-trideoxy- or 5,3', 4'-trideoxy-6'-N- methyl- or 5, 3', 4',6""-tetradeoxykannamyci B and production thereof" | Hamao Umezawa | 1983-10-18 |
| 4406891 | N-Methanesulfonic acid derivatives of istamycin A or B and production thereof | Hamao Umezawa | 1983-09-27 |
| 4382926 | Formimidoyl A and B useful as semi-synthetic aminoglycosidic antibiotics | Hamao Umezawa, Yoshiro Okami | 1983-05-10 |
| 4380581 | Istamycins and streptomyces culture for the production thereof | Hamao Umezawa, Yoshiro Okami | 1983-04-19 |
| 4358602 | Ebelactones and production thereof | Hamao Umezawa, Takaaki Aoyagi, Tomio Takeuchi, Masa Hamada, Masaaki Ishizuka | 1982-11-09 |
| 4357331 | 7.alpha.Methoxycephalosporin derivatives | Katsuyoshi Iwamatsu, Shigeharu Inoue, Keinosuke Miyauchi, Shigeo Seki, Yujiro Yamada | 1982-11-02 |
| 4332794 | "6""-Deoxydibekacin, 4"",6""-dideoxydibekacin and 1-N-aminoacyl derivatives thereof, and the production of these new compounds" | Hamao Umezawa | 1982-06-01 |
| 4296106 | Istamycins and production thereof | Hamao Umezawa, Yoshiro Okami | 1981-10-20 |
| 4268664 | Process for the preparation of 1-N-isoseryl- or 1-N-(L-4-amino-2-hydroxybutyryl)-3',4'-dideoxykanamycin B and intermediates thereof | Hamao Umezawa | 1981-05-19 |