Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233035 | Cephalosporin derivatives | Ryuichiro Hara, Hideki Anan, Tokuo Koide, Ei-ichi Nakai, Masaki Yokota +4 more | 1993-08-03 |
| 5081116 | Cephalosporin derivatives | Masato Satoh, Masauki Komiya, Toshio Okazaki, Tetsuya Maeda, Tadao Shibanuma | 1992-01-14 |
| RE33778 | 1,3-dithietane-2-carboxylic acid penicillin and cephalosporin derivatives | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki +3 more | 1991-12-24 |
| 4845211 | Amino-3-substituted-methyl-3-cephem-4-carboxylic acid and lower alkylsilyl derivatives thereof | Tadao Shibanuma, Kohji Nakano, Yukiyasu Murakami, Ryuichiro Hara, Akio Koda +1 more | 1989-07-04 |
| 4699980 | Process for preparing 3-substituted-methyl-3-cephem derivatives | Tadao Shibanuma, Kohji Nakano, Yukiyasu Murakami, Ryuichiro Hara, Akio Koda +1 more | 1987-10-13 |
| 4690921 | Cephalosporin compounds and salts thereof | Tadao Shibanuma, Ryuichiro Hara, Kohji Nakano, Akio Koda, Atsuki Yamazaki +1 more | 1987-09-01 |
| RE32491 | Process for the preparation of 7.alpha.-methoxy-7.beta.-(1,3-diethietane-2-carboxyamido)cephalosporanic acid derivatives | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki | 1987-09-01 |
| 4608373 | Cephem compounds | Tadao Shibanuma, Kohji Nakano, Yukiyasu Murakami, Ryuichiro Hara | 1986-08-26 |
| 4474779 | Cephalosporin compounds | Kohji Nakano, Tadao Shibanuma, Yukiyasu Murakami | 1984-10-02 |
| 4414153 | 1,3-Dithietane-2-carboxylic acid penicillin and cephalosporin derivatives | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki +3 more | 1983-11-08 |
| 4404373 | Process for the preparation of 7.alpha.-methoxy-7.beta.-(1,3-diethietane-2-carboxamido)cephalosporanic acid derivatives | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki | 1983-09-13 |
| 4263432 | 7.alpha.-Methoxy-7.beta.-(1,3-dithietane-2-carboxamido)cephalosporanic acid derivatives | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki | 1981-04-21 |
| 4198339 | 1,3-Dithietane-2-carboxylic acids and the preparation thereof | Masaru Iwanami, Tetsuya Maeda, Yoshinobu Nagano, Masaharu Fujimoto, Atsuki Yamazaki +3 more | 1980-04-15 |