Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828640 | Method of producing films using a peeling jig | Toshio Kaya, Makoto Fujimoto | 1989-05-09 |
| 4812279 | Process for preparation of cellulose ester films | Masahiro Kondo, Noriake Ohishi | 1989-03-14 |