Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4713452 | Process for preparation of azetidinone derivatives | Sigeru Torii, Hideo Tanaka, Michio Sasaoka, Syozo Hayase | 1987-12-15 |
| 4609438 | Process for preparing thiosulfonate derivatives | Sigeru Torii, Hideo Tanaka, Michio Sasaoka, Yutaka Kameyama | 1986-09-02 |
| 4599151 | Process for preparing 2,2-bishalomethylpenam derivatives | Sigeru Torii, Hideo Tanaka, Michio Sasaoka, Takashi Shiroi | 1986-07-08 |