Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5100457 | Oxazolidinedione compounds, the process for preparing the same and herbicidal composition containing the same | Kenji Hirai, Hiroshi Sato, Hiroaki Hirose, Masahiro Yokota, Shoin Nagato | 1992-03-31 |
| 5028738 | Process for producing 2-oxo-3-aromatic carboxylic acid derivatives | Kenji Hirai, Kazumi Nakamura | 1991-07-02 |
| 4902337 | Herbicidal hydantoin derivatives | Kenji Hirai, Takamasa Fuchikami, Hiroaki Hirose, Masahiro Yokota, Shoin Nagato | 1990-02-20 |