Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977027 | Pyrimidone isobutyric acid and herbicides containing the same | Yasuo Kawamura, Eiichi Oya, Kaoru Itoh, Hiroshi Kita, Kanji Sawada +6 more | 1999-11-02 |
| 5834401 | Nitrogen-containing cyclic compounds and herbicides containing the same as active ingredient | Yasuo Kawamura, Eiichi Oya, Kaoru Itoh, Hiroshi Kita, Kanji Sawada +6 more | 1998-11-10 |
| 5518994 | 2-arylaminopyrimidinone derivative, and herbicide and plant growth regulator | Yasuo Kawamura, Jun Satow, Kenzo Fukuda, Eiichi Oya, Kaoru Itoh +6 more | 1996-05-21 |