Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9098007 | Charging member, charging device, process cartridge, and image forming apparatus | Minoru Rokutan, Hidemi Nukada, Satoya Sugiura, Akihiro Nonaka, Minoru Oshima | 2015-08-04 |
| 9063452 | Image forming apparatus with decrement ratio between charging roller and photoconductor drum | Yoshiki Shimodaira, Yuko Kawase, Satoru TSUTO, Minoru Rokutan, Satoya Sugiura | 2015-06-23 |
| 8515304 | Cleaning member for image forming apparatus, charging device, process cartridge, and image forming apparatus | Masaaki Yamaura | 2013-08-20 |
| 8249475 | Charging device with variation range detector and response speed controller and image forming apparatus using the same | — | 2012-08-21 |
| 8175473 | Charging device and image forming apparatus | — | 2012-05-08 |
| 7764888 | Image formation apparatus and charging control method of charging roll | Yoshihisa Kitano, Osamu Handa | 2010-07-27 |
| 7634206 | Charging device, image forming apparatus using the same and charging controlling method | Akihiro Ida, Yoshihisa Kitano | 2009-12-15 |
| 7542689 | Charging device, image forming apparatus, computer readable medium storing charging control program and method for charging control | Akihiro Ida, Yoshihisa Kitano, Hideki Moriya, Chikaho Ikeda, Hidehiko Yamaguchi +1 more | 2009-06-02 |
| 7532832 | Image forming apparatus and charge control method | Yoshihisa Kitano, Osamu Handa | 2009-05-12 |