Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843135 | Process for production of ethylene copolymers | Masato Tanaka, Syuji Machida | 1989-06-27 |
| 4833224 | Ethylene copolymers and process for production | Masato Tanaka, Syuji Machida | 1989-05-23 |