Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684174 | Method for purifying O, S-dimethyl N-acetylphosphoramidothioate | Yoji Sakito, Mamoru Shirahata, Yujiro Kiyoshima, Kazuya Minamisaka | 1997-11-04 |
| 5616769 | Method for purifying O,S-dimethyl N-acetylphosphoramidothioate | Yoji Sakito, Mamoru Shirahata, Yujiro Kiyoshima, Kazuya Minamisaka | 1997-04-01 |