Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6025370 | Quinolonecarboxylic acid derivatives or salts thereof | Kazuya Hayashi, Masahiro Takahata, Yasuo Watanabe, Hirokazu Narita | 2000-02-15 |
| 5935952 | Quinolone- or naphthylidone-carboxylic acid derivates or their salts | Kazuya Hayashi, Masahiro Tadahata, Yasuo Watanabe, Hirokazu Narita | 1999-08-10 |
| 5872117 | 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1999-02-16 |
| 5719150 | 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1998-02-17 |
| 5658904 | 1,2-ethanediol derivative and salt thereof and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1997-08-19 |
| 5612381 | 1,2-ethanediol derivative and salt thereof process for producing the same, and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1997-03-18 |
| 5472984 | 1,2-ethanediol derivative and salt thereof and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1995-12-05 |
| 5280032 | 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same | Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Hirokazu Narita | 1994-01-18 |
| 4990508 | Pyridone carboxylic acid derivatives and salts thereof, process for producing the same and antibacterial agents comprising the same | Hirokazu Narita, Jun Nitta, Hiroyasu Takagi, Fumihiko Iino, Mikako Miyajima +2 more | 1991-02-05 |
| 4851535 | Nicotinic acid derivatives | Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki, Mikako Miyajima +4 more | 1989-07-25 |
| 4704459 | Process for producing 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivatives, and processes for producing the intermediates | Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki, Mikako Miyajima +4 more | 1987-11-03 |