Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719275 | Silyl enol ether alkylation process | Koichi Hirai, Takahide Nishi, Akira Yoshida, Kozo Oda, Hiroo Koyama | 1998-02-17 |
| 5681951 | Metal catalyzed displacement process | Koichi Hirai, Takahide Nishi, Akira Yoshida, Kozo Oda, Hiroo Koyama | 1997-10-28 |
| 5614624 | Carbapenem | Koichi Hirai, Takahide Nishi, Akira Yoshida, Kozo Oda, Hiroo Koyama | 1997-03-25 |
| 5541317 | Azetidinone compounds useful in the preparation of carbapenem antibiotics and process for preparing carbapenem and penem compounds | Koichi Hirai, Takahide Nishi, Akira Yoshida, Kozo Oda, Hiroo Koyama | 1996-07-30 |
| 5399711 | Thiomarinol compounds | Shuji Takahashi, Hideyuki Shiozawa, Katsumi Fujimoto, Koichi Hirai, Akio Torikata +5 more | 1995-03-21 |
| 5028610 | N-benzhydryl-substituted heterocyclic derivatives, their preparation and their use | Koichi Hirai, Katsumi Fujimoto, Yoshiki Matsui | 1991-07-02 |