Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357465 | 3',4'-Diedeoxykanamycin B derivatives | Hamao Umezawa, Sumio Umezawa, Shigeo Seki, Shunzo Fukatsu | 1982-11-02 |
| 4195170 | 3',4'-Episulfido kanamycin B compounds | Hamao Umezawa, Sumio Umezawa, Shigeo Seki, Shunzo Fukatsu | 1980-03-25 |