Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8314203 | Polyimide film | Masayuki Tsutsumi, Satoshi Maeda, Keizo Kawahara, Takefumi Yoshida, Kazutake Okamoto +6 more | 2012-11-20 |
| 8167600 | Apparatus for producing polymer film and process for producing polymer film | Shinji Fujita, Masaharu Hiki, Youichiro Nakagawa, Kiyoshi Taniguchi, Keizo Kawahara +1 more | 2012-05-01 |
| 6565786 | Method for producing formed article from polyphosphoric acid solution | Yoshihiko Teramoto, Kiyoshi Hotta | 2003-05-20 |