Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300662 | Process for producing coumarin and derivatives thereof | Yoshitaka Nishida, Kiyomi Sakai | 1994-04-05 |
| 5260457 | Process for producing coumarin and derivative thereof | Yoshitaka Nishida, Kiyomi Sakai, Kensen Okusako | 1993-11-09 |
| 5237075 | Process for producing 3,4-dihydrocoumarin derivatives | Kiyomi Sakai, Kensen Okusako, Itaru Kawata, Yasumoto Simazu, Tetuya Suzuta | 1993-08-17 |
| 5231194 | Process for producing coumarin derivatives | Kiyomi Sakai, Kensen Okusako | 1993-07-27 |
| 5218129 | Process for producing 3,4-dihydrocoumarin | Kiyomi Sakai, Kensen Okusako, Yoshitaka Nishida | 1993-06-08 |
| 4879422 | Method for producing cycloalkanol | Kiyomi Sakai | 1989-11-07 |
| 4849550 | Method for producing cycloalkanols | Itaru Kawata | 1989-07-18 |
| 4849551 | Method for separating cyclohexanol | Itaru Kawata | 1989-07-18 |
| 4716253 | Method for producing cycloalkanols | Kiyomi Sakai, Ken-ichi Hirose | 1987-12-29 |
| 4691064 | Method for producing cycloalkanols | Itaru Kawata | 1987-09-01 |
| 4670612 | Method for producing alicyclic alcohols | Kiyomi Sakai, Itaru Kawata | 1987-06-02 |