Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889881 | Ethylene-.alpha.-olefin vulcanized rubber composition | Yoshio Tanimoto, Kiyosi Ikeda | 1989-12-26 |
| 4885338 | Modified diene polymer rubbers | Akio Imai, Tomoaki Seki | 1989-12-05 |
| 4820774 | Elastomer composition | Yoshio Tanimoto, Kiyosi Ikeda, Masahiro Fukuyama | 1989-04-11 |
| 4812527 | Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers | Nabuyuki Yoshida, Akio Imai, Mitsuji Tsuji, Yuichi Saito | 1989-03-14 |