Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837345 | Process for the production of tetrahydropyran-3-one derivatives | Tatsuo Numata, Junichi Watanabe | 1989-06-06 |
| 4824474 | Quinoline derivatives and herbicidal compositions and method of use thereof | Tatsuo Numata, Junichi Watanabe, Takasi Ikai, Tsutomu Nawamaki, Kenji Hattori | 1989-04-25 |