Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061800 | Camptothecin derivatives | Takashi Yaegashi, Satoru Okajima, Seigo Sawada, Kenichiro Nokata, Hiroshi Nagata +2 more | 1991-10-29 |
| 4914205 | Camptothecin derivatives | Seigo Sawada, Kenichiro Nokata, Satoru Okajima, Hisako Nagai, Takashi Yaegashi +1 more | 1990-04-03 |