Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8666287 | Cleaning device, charging device, and image forming apparatus | Kosuke Yamada | 2014-03-04 |
| 8095060 | Cleaning device and image forming apparatus | Yutaka Kiuchi, Satoshi Shigezaki, Satoya Sugiura, Ayumi Noguchi, Takayuki Yamashita +3 more | 2012-01-10 |
| 7917064 | Charge roll, process cartridge, image forming apparatus, charging method, and cleaning method of charge roll | Mikio Yamaguchi, Yasutomo Ishii, Mitsuo Yamamoto | 2011-03-29 |
| 7715737 | Charge roll with axial end portions in contact with cleaning member and image forming apparatus | Masaaki Yamaura | 2010-05-11 |
| 6684042 | Charging device and image forming apparatus using the same | Yutaka Kanai, Yasuo Takayama, Yasutomo Ishii | 2004-01-27 |
| 5655188 | Charging device and image forming appparatus | Tsutomu Sugimoto, Yoshitaka Kuroda | 1997-08-05 |