Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064808 | Developing roller, and electrophotographic process cartridge and electrophotographic image forming apparatus comprising the developing roller | Kenichi Yamauchi | 2011-11-22 |
| 7947339 | Process for producing electrophotographic roller member | Kenichi Yamauchi, Hidenori Satoh | 2011-05-24 |