Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 5011973 | Novel process for producing bischoline-disulfonate derivatives | Yasuyuki Suzuki, Noboru Takagawa, Mikio Kawabata, Mariko Hayashi, Akiko Takagi +1 more | 1991-04-30 |
| 4990508 | Pyridone carboxylic acid derivatives and salts thereof, process for producing the same and antibacterial agents comprising the same | Hirokazu Narita, Yozo Todo, Jun Nitta, Hiroyasu Takagi, Fumihiko Iino +2 more | 1991-02-05 |
| 4851535 | Nicotinic acid derivatives | Yozo Todo, Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki +4 more | 1989-07-25 |
| 4744985 | Novel substances having carcinostatic and immunostimulating activity, process for preparing the same and carcinostatic agent containing the same | Kenzo Tamai, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Hisatsugu Tsuda +5 more | 1988-05-17 |
| 4736026 | Novel process for producing a cephalosporin | Hiroyuki Imaizumi, Takihiro Inaba, Seishi Morita, Ryuko Takeno, Yoshiharu Murotani +4 more | 1988-04-05 |
| 4717767 | 7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporins | Hiroshi Sadaki, Hiroyuki Imaizumi, Takashi Nagai, Kenji Takeda, Isao Myokan +4 more | 1988-01-05 |
| 4704459 | Process for producing 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivatives, and processes for producing the intermediates | Yozo Todo, Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki +4 more | 1987-11-03 |
| 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 |
| 4667040 | Novel process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediates | Hiroshi Sadaki, Hiroyuki Imaizumi, Kenji Takeda, Takihiro Inaba, Ryuko Takeno +2 more | 1987-05-19 |
| 4656287 | Aminothiazole intermediate for a cephalosporin | Hiroyuki Imaizumi, Takihiro Inaba, Seishi Morita, Ryuko Takeno, Yoshiharu Murotani +4 more | 1987-04-07 |
| 4618606 | Antibiotic 7-(thiazolyl)-3-(pyrazinylmethyl) or (pyridazinylmethyl) cephalosporins | Hiroshi Sadaki, Hiroyuki Imaizumi, Takashi Nagai, Kenji Takeda, Isao Myokan +4 more | 1986-10-21 |
| 4614819 | Novel process for producing cephalosporins | Takashi Nagai, Hirokazu Ochiai, Takihiro Inaba, Isao Myokan, Hiroshi Sadaki | 1986-09-30 |
| 4591558 | Novel substances having antitumor and immunostimulating activity, process for preparing the same and antitumor agent containing the same | Kenzo Tamai, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Hisatsugu Tsuda +5 more | 1986-05-27 |
| 4563534 | Process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediates | Hiroshi Sadaki, Hiroyuki Imaizumi, Kenji Takeda, Takihiro Inaba, Ryuko Takeno +2 more | 1986-01-07 |
| 4547462 | Process for preparing substance having carcinostatic and immunostimulating activity | Kenzo Tamai, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Hisatsugu Tsuda +5 more | 1985-10-15 |
| 4489072 | Cephalosporins | Hiroshi Sadaki, Hirokazu Narita, Hiroyuki Imaizumi, Yoshinori Konishi, Takihiro Inaba +4 more | 1984-12-18 |
| 4477664 | Novel 1-(4-piperidiniobenzyl)-2,3-dioxopiperazine derivatives or acid addition salts thereof | Takako Hori, Chosaku Yoshida, Yasuo Kiba, Ryuko Takeno, Joji Nakano +4 more | 1984-10-16 |
| 4477437 | Substances having carcinostatic and immunostimulating activity | Kenzo Tamai, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Hisatsugu Tsuda +5 more | 1984-10-16 |
| 4477666 | 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same | Takako Hori, Chosaku Yoshida, Yasuo Kiba, Ryuko Takeno, Joji Nakano +4 more | 1984-10-16 |
| 4460774 | 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same | Takako Hori, Chosaku Yoshida, Yasuo Kiba, Ryuko Takeno, Joji Nakano +4 more | 1984-07-17 |
| 4459407 | 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives and salts thereof | Takako Hori, Chosaku Yoshida, Yasuo Kiba, Ryuko Takeno, Joji Nakano +4 more | 1984-07-10 |
| 4448963 | 4-[4-(Thiazolyl-amino)benzyl]-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing same | Takako Hori, Chosaku Yoshida, Yasuo Kiba, Ryuko Takeno, Joji Nakano +4 more | 1984-05-15 |
| 4444753 | Pharmaceutical composition comprising extract from poison pouch contents of bee | Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Akira Yotsuji, Masahiro Takahata +4 more | 1984-04-24 |