Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880589 | Process of making a non-oriented, surface-roughened film or sheet | Shunji Abe, Akio Yamamoto | 1989-11-14 |
| 4837277 | Poly(4-methyl-1-pentane) composition and articles molded therefrom | — | 1989-06-06 |