Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5081234 | 4'-demethylepipodophyllotoxin glycosides | Takeshi Ohnuma | 1992-01-14 |
| 5036055 | Acylated derivatives of etoposide | Takeshi Ohnuma, Hideo Kamei, Takayuki Naito | 1991-07-30 |