Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237075 | Process for producing 3,4-dihydrocoumarin derivatives | Tamio Shirafuji, Kiyomi Sakai, Kensen Okusako, Itaru Kawata, Yasumoto Simazu | 1993-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237075 | Process for producing 3,4-dihydrocoumarin derivatives | Tamio Shirafuji, Kiyomi Sakai, Kensen Okusako, Itaru Kawata, Yasumoto Simazu | 1993-08-17 |