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, Junya Takahashi, Katsuzo Kamoshita | 1982-06-15 |
| 4328166 | Production of substituted phenylurea | Fumio Fujita, Hiroshi Kishida, Nobushige Itaya | 1982-05-04 |
| 4309212 | Herbicidal compositions and methods employing urea derivatives | Seizo Sumida, Ryo Yoshida, Katsuzo Kamoshita | 1982-01-05 |