Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881965 | Wheat growing process utilizing selective herebicide | Susumu Yamamoto, Takuya Kakuta, Toshiaki Sato, Eiichi Oya, Takashi Ikai +1 more | 1989-11-21 |
| 4844728 | Pyrazolesulfonamide derivative, and herbicide containing it | Susumu Yamamoto, Kakuta Takuya, Toshiaki Sato, Eiichi Oya, Takasi Ikai +2 more | 1989-07-04 |
| 4830660 | Imidazolesulfonamide derivatives and herbicides | Susumu Yamamoto, Takuya Kakuta, Toshiaki Sato, Eiichi Oya, Takashi Ikai +2 more | 1989-05-16 |