Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5998611 | Process for producing cephem compounds in an aqueous medium | Homare Shinohara, Masato Kodama, Hirofumi Kuroda | 1999-12-07 |
| 5874611 | Butenyl hydroquinone derivatives | Chiaki Seki, Masayuki Konishi | 1999-02-23 |
| 5686635 | Tetrahydro-alkenyl-methanonaphthalene-5,8-dione derivatives | Tetsuo Iwama, Chiaki Seki, Masayuki Konishi | 1997-11-11 |
| 5677471 | Process for the preparation of quinone derivative | Tetsuo Iwama, Chiaki Seki, Masayuki Konishi | 1997-10-14 |
| 5608092 | 1,4,4.sub.a 5,8,9.sub.a -hexahydro-1.alpha.,4.alpha.-methanoan-thraquinone derivative(s) | Chiaki Seki, Masayuki Konishi | 1997-03-04 |
| 5565586 | Oxidative process for the preparation of allyl quinone derivatives | Chiaki Seki, Masayuki Konishi | 1996-10-15 |
| 5476955 | Process for the preparation of a quinone derivative | Tetsuo Iwama, Chiaki Seki, Masayuki Konishi | 1995-12-19 |
| 5412124 | Preparation process of naphthoquinone derivative and intermediate for the preparation thereof | Chiaki Seki, Masayuki Konishi | 1995-05-02 |
| 5245060 | Terpene derivatives and process for preparing the same | Yoshio Urawa, Yukio Narabe, Yoshihiko Hisatake, Shizumasa Kijima | 1993-09-14 |
| 5104996 | Process for preparing 2,3,5-trimethylbenzoquinone | Noriyasu Hirose, Yuichi Inai, Kiiti Ema, Takashi Banba, Shizumasa Kijima | 1992-04-14 |
| 5102895 | Novel vitamin E derivatives and process for the production thereof | Noriyasu Hirose, Takaharu Nakamura, Kiiti Ema, Takashi Banba, Tetsuya Nakamura +5 more | 1992-04-07 |
| 4433159 | Synthesis of optically active d-alpha tocopherol | Kozo Akasaka, Youji Yamagishi | 1984-02-21 |