Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416894 | Image forming apparatus | Yutaka Goto, Seiichi Kogure, Hiroshi Kikuchi, Hideki Kimura, Yusuke Ishizuka +2 more | 2025-09-16 |
| 9268292 | Image forming apparatus including first and second bias voltage supply devices | Takeshi Kojima, Toshiya Satoh, Akira Asaoka, Hiroyuki Uenishi, Yusuke Ishizuka | 2016-02-23 |
| 9201378 | Cleaning unit, process cartridge incorporating same, and image forming apparatus incorporating same | Akira Asaoka, Toshiya Sato, Takeshi Kojima, Hiroyuki Uenishi, Yusuke Ishizuka | 2015-12-01 |
| 9195204 | Image forming apparatus | Yusuke Ishizuka, Toshiya Sato, Akira Asaoka, Norio Kudo, Hiroyuki Uenishi +2 more | 2015-11-24 |
| 9170554 | Cleaning device, process cartridge, and image forming apparatus | Takeshi Kojima, Toshiya Satoh, Akira Asaoka | 2015-10-27 |
| 9141020 | Charger positioning adjuster and image forming apparatus incorporating same | Hiroyuki Uenishi, Toshiya Sato, Takeshi Kojima, Akira Asaoka, Yusuke Ishizuka | 2015-09-22 |
| 8396383 | Image forming apparatus and process cartridge | Kenji Honjoh, Toshiya Satoh | 2013-03-12 |
| 7953362 | Image forming apparatus, process cartridge, and lubricant applicator | Yuji Arai, Hiroyuki Nagashima, Nobuo Kuwabara, Hiroshi Hosokawa | 2011-05-31 |
| 7603053 | Image forming apparatus | Hiroshi Hosokawa, Hiroyuki Nagashima, Nobuo Kuwabara | 2009-10-13 |
| 6546228 | Image forming apparatus conveniently upgradable to a duplex image forming apparatus | Takeshi Motohashi, Masashi Takiguchi, Katsuhiro Kosuge, Hideyuki Takemoto | 2003-04-08 |
| 5873021 | Cleaner and toner magazine for electrophotographic apparatus | Hiroshi Saitoh, Shigemi Kanda, Yozo Matsuura, Masahiko Kamijo | 1999-02-16 |
| 5852762 | Toner magazine and cleaner for an electrophotographic apparatus | Shigemi Kanda | 1998-12-22 |
| 5697038 | Cleaner and toner magazine for electrophotographic apparatus | Hiroshi Saitoh, Shigemi Kanda, Yozo Matsuura, Masahiko Kamijo | 1997-12-09 |
| 5555081 | Cleaner and toner magazine for electrophotographic apparatus | Hiroshi Saitoh, Shigemi Kanda, Yozo Matsuura, Masahiko Kamijo | 1996-09-10 |