Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674811 | Cyanoketone derivative and herbicide containing it as an active component | Toshio Kitajima, Shozo Kato, Masao Yamaguchi, Masahiko Ishizaki | 1997-10-07 |
| 5234894 | Carbonyl acetonitrile derivative and herbicide containing it as an active component | Masahiko Ishizaki, Seiji Nagata | 1993-08-10 |