Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552219 | Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediates | Toshiya Takahashi, Shinzo Seko | 2003-04-22 |
| 6160181 | Tetraene derivative and process for producing the same | Shinzo Seko, Naoto Konya, Toshiya Takahashi | 2000-12-12 |
| 6037509 | Process for producing 1-bromo-4-phenylbutane | Shinzo Seko | 2000-03-14 |
| 5679859 | Process for producing improved crystals of 3-amino-2-hydroxyacetophenone salt | Hirokazu Murata, Hideki Ushio, Hiroaki Hibino, Etsuko Fukuda | 1997-10-21 |
| 5675036 | Process for preparing aromatic amide compound | Etsuko Fukuda, Hideki Ushio, Hirokazu Murata | 1997-10-07 |
| 5589596 | Process for producing amines | Takuo Hibi, Michio Yamamoto, Kazuyuki Tanaka, Kazuhiro Tada, Masami Fukao +1 more | 1996-12-31 |
| 5395972 | Process for producing amines | Takuo Hibi, Michio Yamamoto, Gohfu Suzukamo | 1995-03-07 |