Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334912 | Urea derivatives, and their production and use | Ryo Yoshida, Haruhiko Katoh, Seizo Sumida, Ichiki Takemoto, Junya Takahashi | 1982-06-15 |
| 4315768 | Oximecarbamate derivatives, and their production and use | Yoshiaki Kosuge, Ryo Yoshida, Seizo Sumida, Hirofumi Oshita, Soji Otsuki | 1982-02-16 |
| 4309212 | Herbicidal compositions and methods employing urea derivatives | Ichiki Takemoto, Seizo Sumida, Ryo Yoshida | 1982-01-05 |