Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839129 | Process for producing biaxially stretched polyparaphenylene sulfide film | Hideyuki Yasumi, Satoru Matsunaga | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839129 | Process for producing biaxially stretched polyparaphenylene sulfide film | Hideyuki Yasumi, Satoru Matsunaga | 1989-06-13 |