Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889881 | Ethylene-.alpha.-olefin vulcanized rubber composition | Hiroyoshi Takao, Yoshio Tanimoto | 1989-12-26 |
| 4820774 | Elastomer composition | Hiroyoshi Takao, Yoshio Tanimoto, Masahiro Fukuyama | 1989-04-11 |