Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838924 | Aromatic urea derivatives and their use as herbicide | Tetsuo Takematsu, Daisuke Fukuoka, Isao Hashimoto | 1989-06-13 |
| 4814500 | Cyanoguanidine derivative and process for preparation thereof | Noriaki Kihara, Teruaki Mukaiyama, Takeshi Ishitoku | 1989-03-21 |