Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558781 | Conductive roller, process cartridge and image forming apparatus | Naoki Fuei, Hiroshi Inoue | 2003-05-06 |
| 5751801 | Charging member with surface layer comprising polymers, and image forming apparatus using the same | Jun Murata, Naoki Shirai, Yoshiaki Nishimura, Kiyoshi Mizoe, Tsunenori Ashibe | 1998-05-12 |
| 5713067 | Charging member, process cartridge using the same and electrophotographic apparatus | Kiyoshi Mizoe, Eiji Funabashi, Tsunenori Ashibe | 1998-01-27 |
| 5576805 | Contact charging member for charging a photosensitive drum having improved durability and a method for making the same | Kiyoshi Mizoe, Tsunenori Ashibe | 1996-11-19 |
| 5363176 | Contact charging member and apparatus using the charging member | Hisayo Ito | 1994-11-08 |