Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874836 | Thermoplastic wholly aromatic polyimide esters and process for producing the same | Makoto Wakabayashi, Hideo Hayashi | 1989-10-17 |
| 4798236 | High performance tire tread | — | 1989-01-17 |