Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877870 | Process for producing 10-hydroxyanthracyclines | Hamao Umezawa, Hiroyuki Kawai, Shohachi Nakajima | 1989-10-31 |
| 4870207 | Synthesis of arphamenine A | Hamao Umezawa, Takaaki Aoyagi, Takeshi Nakamura, Shunzo Fukatsu | 1989-09-26 |
| 4818818 | Method for the preparation of 4'-0-tetrahydropyranyladriamycin b | Hamao Umezawa, Tomio Takeuchi, Yoshikazu Takahashi | 1989-04-04 |