Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832772 | Method for surface treatment of film | Takehiko Noguchi, Yoshiki Takeoka | 1989-05-23 |
| 4808468 | Polyimide film and its manufacturing method | Hitoshi Nojiri, Katuhiro Kitai, Yoshihide Ohnari, Masaro Kidoh | 1989-02-28 |