Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10781288 | Polyimide precursor and polyimide | Takuya Oka, Yoshiyuki Watanabe, Nobuharu Hisano | 2020-09-22 |
| 10174166 | Polyimide precursor, polyimide, varnish, polyimide film, and substrate | Takuya Oka, Yoshiyuki Watanabe, Nobuharu Hisano | 2019-01-08 |
| 9783640 | Polyimide precursor, polyimide, polyimide film, varnish, and substrate | Takuya Oka, Yoshiyuki Watanabe, Nobuharu Hisano | 2017-10-10 |
| 9758623 | Polyimide precursor and polyimide | Ryoichi Takasawa, Takuya Oka, Miharu Nakagawa, Keiji Iwamoto, Kenji Hirotsu +1 more | 2017-09-12 |
| 5273421 | Injection type molding machine for producing hollow double wall type plastic articles | Yoshiaki Kanoh | 1993-12-28 |