Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8710198 | Caprazene as a novel compound and derivatives thereof, and caprazol as a novel compound and derivatives thereof | Toshiaki Miyake, Masayuki Igarashi, Yoshiaki Takahashi, Masa Hamada | 2014-04-29 |
| 7482439 | Caprazene as novel compound and derivatives thereof, and caprazol as novel compound and derivatives thereof | Toshiaki Miyake, Masayuki Igarashi, Yoshiaki Takahashi, Masa Hamada | 2009-01-27 |
| 5527781 | 4-O-(aminoglycosyl)- or 4,6-di-O-(aminoglycosyl)-2,5-dideoxy-5,5-difluorostreptamine derivatives | Tomio Takeuchi, Sumio Umezawa, Tsutomu Tsuchiya, Shunzo Fukatsu, Eijiro Umemura | 1996-06-18 |
| 4873225 | 1-n-(4-amino-3-fluoro-2-hydroxybutyryl)-kanamycins | Sumio Umezawa, Tsutomu Tsuchiya, Tomio Takeuchi, Kazuo Umezawa, Yoshiaki Takahashi +2 more | 1989-10-10 |
| 4469683 | "3""-Epistreptomycin and its dihydro derivative, pharmaceutical compositions and production of the same" | Hamao Umezawa, Sumio Umezawa, Tsutomu Tsuchiya, Shuichi Sakamoto | 1984-09-04 |