Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6025370 | Quinolonecarboxylic acid derivatives or salts thereof | Yozo Todo, Kazuya Hayashi, Masahiro Takahata, Hirokazu Narita | 2000-02-15 |
| 5935952 | Quinolone- or naphthylidone-carboxylic acid derivates or their salts | Yozo Todo, Kazuya Hayashi, Masahiro Tadahata, Hirokazu Narita | 1999-08-10 |
| 5858408 | Sustained-release oral ointment | Sadao Sotani, Shosaku Kato, Isamu Takakura | 1999-01-12 |
| 5300497 | Penam derivatives and salts thereof, process for producing the same and antibacterial agent comprising the same | Hirokazu Ochiai, Yoshiharu Murotani, Hirohiko Fukuda, Osamu Yoshino, Shinzaburo Minami +2 more | 1994-04-05 |
| 5185330 | Penam derivatives and salts thereof, and antibacterial agent comprising the same | Hirokazu Ochiai, Yoshiharu Murotani, Hirohiko Fukuda, Osamu Yoshino, Shinzaburo Minami +2 more | 1993-02-09 |
| 5144027 | Cephalosporins, process for producing the same, intermediates thereof and process for producing the intermediates | Hiroshi Sadaki, Hirokazu Narita, Hiroyuki Imaizumi, Yoshinori Konishi, Takihiro Inaba +4 more | 1992-09-01 |
| 4717767 | 7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporins | Hiroshi Sadaki, Hiroyuki Imaizumi, Takashi Nagai, Kenji Takeda, Isao Myokan +4 more | 1988-01-05 |
| 4698352 | 4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and antibacterial agents containing the same | Hirokazu Narita, Yoshinori Konishi, Jun Nitta, Shunjiro Misumi, Hideyoshi Nagaki +5 more | 1987-10-06 |
| 4673738 | Novel intermediates of cephalosporins and process for producing 7-(substituted or unsubstituted amino)-3-substituted methyl-.DELTA..sup.3 -cephem-4-carboxylic acids | Hiroshi Sadaki, Hirokazu Narita, Hiroyuki Imaizumi, Yoshinori Konishi, Takihiro Inaba +4 more | 1987-06-16 |
| 4618606 | Antibiotic 7-(thiazolyl)-3-(pyrazinylmethyl) or (pyridazinylmethyl) cephalosporins | Hiroshi Sadaki, Hiroyuki Imaizumi, Takashi Nagai, Kenji Takeda, Isao Myokan +4 more | 1986-10-21 |
| 4489072 | Cephalosporins | Hiroshi Sadaki, Hirokazu Narita, Hiroyuki Imaizumi, Yoshinori Konishi, Takihiro Inaba +4 more | 1984-12-18 |