Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12353144 | Charging device, process cartridge, and image forming apparatus | Hiroki Sasame, Tomoo Akizuki | 2025-07-08 |
| 9261811 | Developer carrying member, developing assembly, process cartridge, and image forming apparatus | Kazunari Hagiwara, Tatsuaki Orihara, Shuhei Tokiwa, Yasuyuki Matsumoto, Makoto Fukatsu +1 more | 2016-02-16 |
| 6558781 | Conductive roller, process cartridge and image forming apparatus | Yuzi Ishihara, Hiroshi Inoue | 2003-05-06 |
| 6400919 | Conducting member, process cartridge and image-forming apparatus | Hiroshi Inoue | 2002-06-04 |
| 6337103 | Process for remanufacturing charging member, charging member remanufactured by the remanufacturing process, and process cartridge having the charging member | Hiroshi Inoue | 2002-01-08 |
| 6337962 | Process cartridge and electrophotographic apparatus | Hiroshi Inoue, Yuji Ishihara | 2002-01-08 |
| 5705274 | Charging member, process for producing charging member, and process cartridge having the charging member | Hiroshi Inoue, Yoshiko Fujimura | 1998-01-06 |
| 5691807 | Process cartridge and image forming apparatus with indicating means | Mahito Yoshioka | 1997-11-25 |
| 5678140 | Reconditioning method for charging roller | Hiroshi Inoue | 1997-10-14 |
| 5543473 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same | Takashi Tanaka | 1996-08-06 |
| 5219453 | Sheet binder | Hideaki Furukawa, Norio Hikake, Kimiaki Hayakawa, Shuichi Yabe | 1993-06-15 |
| D319464 | Toner case for copying machine | Ryoichi Takahashi, Yutaka Ban, Masataka Isomoto | 1991-08-27 |