Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845244 | Production of hydroxyphenylpropionic acid ester having a novel crystalline structure | Chinehito Ebina, Haruki Okamura, Shinichi Yachigo, Tamaki Ishii | 1989-07-04 |
| 4839408 | Stabilized polyolefin composition | Yoshiharu Fukui, Kazuhisa Kuroda, Tamaki Ishii | 1989-06-13 |
| 4829112 | Polyolefin resin composition | Tamaki Ishii, Shinichi Yachigo, Taisuke Okita, Chinehito Ebina | 1989-05-09 |