Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845174 | Process for preparing a vinyl chloride polymer | Tadashi Amano, Hajime Kitamura | 1989-07-04 |
| 4837345 | Process for the production of tetrahydropyran-3-one derivatives | Tatsuo Numata, Masataka Hatanaka | 1989-06-06 |
| 4826940 | Method for suspension polymerization of vinyl chloride monomer | Tadashi Amano, Yoshitaka Okuno | 1989-05-02 |
| 4824474 | Quinoline derivatives and herbicidal compositions and method of use thereof | Tatsuo Numata, Masataka Hatanaka, Takasi Ikai, Tsutomu Nawamaki, Kenji Hattori | 1989-04-25 |
| 4822838 | Curable chlorinated polyethylene and copolyethylene composition | Kozo Misumi, Masanobu Miyaguchi, Seiji Kadomatsu, Sei Nakazawa | 1989-04-18 |