Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |