Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4958018 | Method for production of 3-exomethylenecepham derivatives | Sigeru Torii, Hideo Tanaka, Masatoshi Taniguchi, Norio Saito, Takashi Shiroi +3 more | 1990-09-18 |
| 4925934 | Process for preparation of beta-lactam derivatives | Masatoshi Taniguchi, Kiyotoshi Matsumura, Ichiro Kawahara, Kenji Kaze, Daisuke Suzuki +1 more | 1990-05-15 |
| 4912213 | Process for preparing penicillanic acid derivatives | Masatoshi Taniguchi, Kiyotoshi Matsumura, Ichiro Kawahara, Kenji Kase, Daisuke Suzuki +4 more | 1990-03-27 |
| 4898654 | Method of producing optically active .beta.-lactam derivatives | Fumio Toda, Kouichi Tanaka, Masatoshi Taniguchi | 1990-02-06 |
| 4886891 | Process for preparing 1,1-disubstituted ethylene derivative by reaction of lead with a carbinol derivative | Shigeru Torii, Masatoshi Taniguchi, Yoshihisa Tomotaki, Mitsuo Akada, Hideo Tanaka +2 more | 1989-12-12 |
| 4853468 | Process for the preparation of cephem derivatives | Sigeru Torii, Kenji Uneyama, Hideo Tanaka, Junzo Nokami, Norio Saito +1 more | 1989-08-01 |
| 4810788 | Azetidinone disulfide derivatives and a process for preparing the same | Sigeru Torii, Hideo Tanaka, Junzo Nokami, Norio Saito, Takashi Siroi | 1989-03-07 |
| 4801720 | Azetidinone disulfides and a ring opening process for preparing the same | Sigeru Torii, Hideo Tanaka, Junzo Nokami, Norio Saito, Takashi Siroi | 1989-01-31 |
| 4798890 | Process for preparation of azetidinone derivatives | Sigeru Torii, Hideo Tanaka, Takashi Shiroi | 1989-01-17 |
| 4789740 | Halogenation process for preparing 2-(oxoazetidinyl)-3-chloromethyl-3-butenoate | Sigeru Torii, Hideo Tanaka, Yuzuru Ogata, Norio Saito, Shigemitsu Nagao | 1988-12-06 |
| 4784734 | Azetidinone derivatives and process for the preparation of the same | Sigeru Torii, Kenji Uneyama, Hideo Tanaka, Junzo Nokami, Norio Saito +1 more | 1988-11-15 |
| 4740596 | Process for preparation of 4-sulfonylthio azetidinone derivatives | Sigeru Torii, Hideo Tanaka, Shigemitsu Nagao | 1988-04-26 |
| 4713452 | Process for preparation of azetidinone derivatives | Sigeru Torii, Hideo Tanaka, Seiryu Uto, Syozo Hayase | 1987-12-15 |
| 4689411 | 4-thio azetidinone intermediates and process for the preparation of the same | Sigeru Torii, Kenji Uneyama, Hideo Tanaka, Junzo Nokami, Norio Saito +1 more | 1987-08-25 |
| 4665166 | Process for preparing cephalosporin compounds | Shigeru Torii, Hideo Tanaka, Junzo Nogami, Norio Saito, Takashi Shiroi | 1987-05-12 |
| 4656264 | Bicyclic azetidinone intermediates | Shigeru Torii, Hideo Tanaka, Junzo Nogami, Norio Saito, Takashi Shiroi | 1987-04-07 |
| 4629542 | Process for preparing 3-exomethylenecepham derivatives | Sigeru Torii, Hideo Tanaka, Yutaka Kameyama | 1986-12-16 |
| 4622178 | Process for preparing azetidinone derivatives | Shigeru Torii, Hideo Tanaka, Junzo Nogami, Norio Saito, Takashi Shiroi | 1986-11-11 |
| 4609438 | Process for preparing thiosulfonate derivatives | Sigeru Torii, Hideo Tanaka, Seiryu Uto, Yutaka Kameyama | 1986-09-02 |
| 4604457 | 2-substituted cephem derivatives and process for preparing the same | Shigeru Torii, Hideo Tanaka, Junzo Nogami, Norio Saito, Takashi Shiroi | 1986-08-05 |
| 4603014 | Thiazolinoazetidinone derivatives and process for the preparation of the same | Sigeru Torii, Hideo Tanaka, Junzo Nokami, Norio Saito, Takashi Shiroi +1 more | 1986-07-29 |
| 4599151 | Process for preparing 2,2-bishalomethylpenam derivatives | Sigeru Torii, Hideo Tanaka, Takashi Shiroi, Seiryu Uto | 1986-07-08 |
| 4566996 | Process for preparing azetidinone derivatives | Sigeru Torii, Hideo Tanaka, Takashi Shiroi, Norio Saito, Kiyotoshi Matsumura | 1986-01-28 |
| 4499265 | Process for preparing 3-exo-methylenecepham derivatives | Sigeru Torii, Hideo Tanaka, Junzo Nokami, Takashi Shiroi, Norio Saito | 1985-02-12 |
| 4482491 | Thiazolinoazetidinone derivatives and process for the preparation of the same | Sigeru Torii, Hideo Tanaka, Junzo Nokami, Norio Saito, Takashi Shiroi +1 more | 1984-11-13 |