Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146320 | Conductive roll | Hitoshi Yoshikawa, Kunio Ito, Sumio Oinuma, Akihiko Kaji, Kenichi Ohkuwa +2 more | 2000-11-14 |
| 6142922 | Conductive roller | Hitoshi Yoshikawa, Akihiko Kaji, Kenichi Ohkuwa | 2000-11-07 |
| 5993366 | Low hardness conductive roll | Akihiko Kaji, Kenichi Ohkuwa, Hitoshi Yoshikawa | 1999-11-30 |