Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845248 | Intermediates for the production of podophyllotoxin | Takushi Kaneko | 1989-07-04 |
| 4808613 | Rebeccamycin derivative containing pharmaceutical composition | Takushi Kaneko, Jacob J. Utzig | 1989-02-28 |