Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684174 | Method for purifying O, S-dimethyl N-acetylphosphoramidothioate | Yoji Sakito, Mamoru Shirahata, Yujiro Kiyoshima, Atukazu Iwata | 1997-11-04 |
| 5616769 | Method for purifying O,S-dimethyl N-acetylphosphoramidothioate | Yoji Sakito, Mamoru Shirahata, Yujiro Kiyoshima, Atukazu Iwata | 1997-04-01 |
| 5597941 | Process for production of 5-amino-3-methylpyrazole | Masahito Sekiguchi, Kenji Saito | 1997-01-28 |