Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5245059 | Method for the preparation of 2,3,5-trimethylbenzoquinone | Masao Shimizu, Takashi Hayakawa, Hideo Orita | 1993-09-14 |
| 5126499 | Process for the production of hydrocarbons with two or more carbon atoms from methane | Takashi Hayakawa, Hideo Orita, Masao Shimizu, Yoshihito Watanabe | 1992-06-30 |
| 4952712 | Process for the preparation of 2,3-dimethoxy-5-methylbenzoquinone | Hideo Orita, Masao Shimizu, Takashi Hayakawa | 1990-08-28 |
| 4400544 | Method for the preparation of cyclohexanone | Toshio Ishikawa, Takashi Hayakawa, Juichi Imamura | 1983-08-23 |