Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5550131 | 2-piperazinone compounds and their use | Zenichi Terashita, Hideto Fukushi | 1996-08-27 |
| 5294713 | 2-piperazinone compounds and their use | Zenichi Terashita | 1994-03-15 |
| 4997836 | Trisubstituted piperazine compounds, their production and use | Kohei Nishikawa | 1991-03-05 |
| 4954625 | Piperidine derivatives, their production and use | Kohei Nishikawa, Katsumi Ito | 1990-09-04 |
| 4937246 | PAF antagonist, 1,4-disubstituted piperazine compounds and production thereof | Katsumi Itoh, Kohei Nishikawa | 1990-06-26 |
| 4880809 | 1,4-disubstituted piperazines (or homopiperazines) as platelet-activating factor antagonists | Katsumi Itoh, Kohei Nishikawa | 1989-11-14 |
| 4871842 | Piperidine derivatives | Kohei Nishikawa, Katsumi Ito | 1989-10-03 |
| 4816466 | Piperidine derivatives | Kohei Nishikawa, Katsumi Ito | 1989-03-28 |
| 4751316 | 1,5-benzoxathiepin derivatives | Minoru Hirata | 1988-06-14 |
| 4739066 | Intermediates for the preparation of condensed seven-membered ring compounds | Kohei Nishikawa, Katsumi Ito | 1988-04-19 |
| 4736031 | 2-(piperazinylalkyl)-1-benzothiepin, 1-benzoxepin, and 1,5-benzodioxepin derivatives | Minoru Hirata | 1988-04-05 |
| 4672064 | 1,5-benzoxathiepin derivatives, their production and use | Minoru Hirata | 1987-06-09 |
| 4638000 | Condensed seven-membered ring compounds, their production and use | Kohei Nishikawa, Katsumi Ito | 1987-01-20 |
| 4591458 | 3-amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine derivatives | Kohei Nishikawa, Katsumi Ito | 1986-05-27 |
| 4564612 | Condensed, seven-membered ring compounds and their use | Kohei Nishikawa, Katsumi Ito | 1986-01-14 |
| 4558068 | Spirobenzofuranones and their use in treating peptic ulcers | Masazumi Watanabe, Mitsuru Kawada, Isuke Imada | 1985-12-10 |
| 4548932 | 3-Amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine derivatives | Kohei Nishikawa, Katsumi Ito | 1985-10-22 |
| 4362740 | Spiro compounds, their production and use | Isuke Imada, Mitsuru Kawada | 1982-12-07 |
| 4342779 | 7-Acetylspirobenzofuranone compound | Masazumi Watanabe, Mitsuru Kawada, Isuke Imada | 1982-08-03 |
| 4330554 | Spirobenzofuranone compounds | Masazumi Watanabe, Mitsuru Kawada, Isuke Imada | 1982-05-18 |
| 4299963 | 1-Azaxanthone derivatives | Akira Nohara, Kiyoshi Ukawa | 1981-11-10 |
| 4284644 | Spirobenzofuranone compounds | Masazumi Watanabe, Mitsuru Kawada, Isuke Imada | 1981-08-18 |
| 4255576 | 1-Azaxanthone derivatives | Akira Nohara, Kiyoshi Ukawa | 1981-03-10 |