Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8900107 | Conductive rubber member | Naoki Hirakawa | 2014-12-02 |
| 8090295 | Conductive rubber member | Naoki Hirakawa | 2012-01-03 |
| 7922637 | Conductive roller | Kenta Shikakura | 2011-04-12 |