Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805989 | Separator for solid polymer electrolyte fuel cell and process for producing the same | Masahiro Seido, Tatsuya Tonogi | 2004-10-19 |
| 5318969 | Benzopyran compound and its pharmaceutical use | Toshio Seki, Tohru Nakajima, Osamu Yaoka | 1994-06-07 |
| 5273998 | Process for making an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound | — | 1993-12-28 |
| 5177216 | Diastereomeric ester compound useful as an intermediate in the making of an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound | — | 1993-01-05 |
| 5162553 | Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compounds and intermediates therefor | Shinro Setoguchi, Mineo Tsuruda, Chiaki Kitami | 1992-11-10 |
| 5143936 | Benzopyran compound and its pharmaceutical use | Toshio Seki, Tohru Nakajima, Osamu Yaoka | 1992-09-01 |
| 5066816 | Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compounds and intermediates therefor | Shinro Setoguchi, Mineo Tsuruda, Chiaki Kitami | 1991-11-19 |
| 5021432 | Benzopyran compound and its pharmaceutical use | Toshio Seki, Tohru Nakajima, Osamu Yaoka | 1991-06-04 |
| 4713381 | Oxodiazine compounds and pharmaceutical compositions thereof | Hideki Ao, Minoru Obata, Hiroshi Mikashima | 1987-12-15 |
| 4709095 | Ortho-aminomethylphenol compounds | Osamu Yaoka | 1987-11-24 |
| 4365066 | 2(4-n-Hexadecyl amino or oxy phenyl) 5 ethoxy oxazoleacetic acid derivatives | Mitsuharu Sano, Hiroshi Yasuda | 1982-12-21 |