Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300662 | Process for producing coumarin and derivatives thereof | Yoshitaka Nishida, Tamio Shirafuji | 1994-04-05 |
| 5260457 | Process for producing coumarin and derivative thereof | Yoshitaka Nishida, Tamio Shirafuji, Kensen Okusako | 1993-11-09 |
| 5237075 | Process for producing 3,4-dihydrocoumarin derivatives | Tamio Shirafuji, Kensen Okusako, Itaru Kawata, Yasumoto Simazu, Tetuya Suzuta | 1993-08-17 |
| 5231194 | Process for producing coumarin derivatives | Tamio Shirafuji, Kensen Okusako | 1993-07-27 |
| 5218129 | Process for producing 3,4-dihydrocoumarin | Tamio Shirafuji, Kensen Okusako, Yoshitaka Nishida | 1993-06-08 |
| 4879422 | Method for producing cycloalkanol | Tamio Shirafuji | 1989-11-07 |
| 4716253 | Method for producing cycloalkanols | Tamio Shirafuji, Ken-ichi Hirose | 1987-12-29 |
| 4670612 | Method for producing alicyclic alcohols | Tamio Shirafuji, Itaru Kawata | 1987-06-02 |
| 4568769 | Method for producing a mixture containing cycloalkanones and cycloalkanols | Akira Yashima, Teruo Matsuda, Tadao Sato, Mitsuaki Takahashi | 1986-02-04 |