Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658920 | Substituted 1H,12H-benz-[DE]pyrano[3',4':6,7] indolizino[1,2-B]quinoline-10,13(9H,15H)-dione compound | Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki | 1997-08-19 |
| 5637770 | Hexa-cyclic compound | Hirofumi Terasawa, Akio Ejima, Satoru Ohsuki | 1997-06-10 |