Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258441 | Polyimide based friction material and preparation process of the material | Noboru Umemoto | 1993-11-02 |
| 5206340 | Integrated circuit socket comprising a polyimide polymer | Toshihiko Tsutsumi, Toshiyuki Nakakura, Shuithi Morikawa, Nobuhito Koga | 1993-04-27 |
| 5098627 | Method for producing a paper-releasing guide-claw of copying machine | Masao Yoshikawa | 1992-03-24 |
| 4994544 | Production process for polyimide fibers | Masahiro Ohta, Shuichi Morikawa, Nubohito Koga, Shoji Tamai | 1991-02-19 |
| 4787993 | Lubricant | — | 1988-11-29 |