Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846877 | Plant growth promoter and method of plant growth promotion | Shizuo Azuma, Koji Nakagawa, Teizo Yamaji, Yataro Ichikawa | 1989-07-11 |
| 4845264 | Phenoxycarboxylic acid and herbicide comprising it as active ingredient | Shizuo Azuma, Koji Nakagawa, Yataro Ichikawa | 1989-07-04 |
| 4838923 | Organo-phosphorus compound and herbicide comprising it as active ingredient | Shizuo Azuma, Koji Nakagawa, Yataro Ichikawa | 1989-06-13 |
| 4812163 | Phenoxyacetic acids and herbicides comprising them as active ingredients | Shizuo Azuma, Koji Nakagawa, Yataro Ichikawa | 1989-03-14 |