Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658888 | Erythromycin derivatives | Tsutomu Sato, Hisanori Takanashi | 1997-08-19 |
| 5646308 | Benzopyran derivatives | Hiroyuki Nabata | 1997-07-08 |
| 5646310 | N-(2-cyanoethyl)-6-fluoroalkyl-2h-1-benzopyran derivatives | Haruhiko Sato, Takenori Ishizawa | 1997-07-08 |
| 5614633 | Benzopyran derivatives | Haruhiko Sato, Takenori Ishizawa, Hiroyuki Nabata | 1997-03-25 |