Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854380 | Polyimide precursor solution process for the production thereof coating or film obtained therefrom and process for producing the film | Yoshiaki Echigo, Shoji Okamoto, Minoru Saitou | 1998-12-29 |