Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4447259 | 2-(Substituted phenoxy)propionic acid derivatives and their uses for herbicidal purposes | Hiroshi Ohyama, Ken Morita, Saburo Yamamura | 1984-05-08 |
| 4420486 | Benzoxazolone derivatives, processes for preparation thereof and compositions containing them | Hiroshi Ohyama, Kimiyoshi Kaneko, Hiromichi Ishikawa, Ken Morita, Takuo Wada +2 more | 1983-12-13 |
| 4255183 | Substituted phenyl urea and herbicides for use in paddy field | Hiroshi Ohyama, Yoshihisa Watanabe, Jyotaroh Tamura, Iwao Taketomi | 1981-03-10 |