Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6832062 | Charging apparatus, process cartridge and image forming apparatus having electroconductive particles charged in a nip between a charging member and a member to be charged | Harumi Ishiyama, Yasunori Chigono, Norio Takahashi | 2004-12-14 |
| 6788911 | Charging apparatus, process cartridge and image forming apparatus | Harumi Ishiyama, Yasunori Chigono | 2004-09-07 |
| 6781304 | EL panel | Yoshihiko Yano, Katsuto Nagano, Mutsuko Nakano | 2004-08-24 |