Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12253811 | Developing device | Satoru Motohashi, Go Shindo, Shuhei Tokiwa | 2025-03-18 |
| 12181813 | Image forming apparatus | Takashi Mukai, Shunsuke Mizukoshi | 2024-12-31 |
| 11537065 | Developing unit, process cartridge, and image forming apparatus using toner to develop toner image | — | 2022-12-27 |
| 11493857 | Image forming apparatus | Nobuo Oshima, Satoru Motohashi | 2022-11-08 |
| 11003108 | Development device, cartridge, and image forming apparatus | Nobuo Oshima | 2021-05-11 |
| 10877396 | Image forming apparatus | Nobuo Oshima, Satoru Motohashi | 2020-12-29 |
| 10234806 | Image forming apparatus | Hiroyoshi Iwayama | 2019-03-19 |
| 9977368 | Developing apparatus, process cartridge, and image forming apparatus | Hiroki Tanaka, Motonari Ito, Akihisa Matsukawa, Toshiki Okamura | 2018-05-22 |
| 9927730 | Image forming apparatus that effects removal of residual toner | Makoto Tokudome | 2018-03-27 |
| 9915892 | Developing device, process cartridge, and image forming apparatus | Makoto Tokudome | 2018-03-13 |
| 9835973 | Image forming apparatus having cleaner-less developer system | Gosuke Goto, Akihisa Matsukawa | 2017-12-05 |
| 9727002 | Image forming apparatus having an image bearing member charged with predetermined polarity and potential | Hiroyoshi Iwayama, Takashi Hiramatsu, Akihisa Matsukawa | 2017-08-08 |
| 9645537 | Image forming apparatus capable of detecting presence or absence of a cartridge or a shape of the cartridge without increasing the number of components | Kuniaki Tamagaki, Motoki Adachi, Takanori Watanabe | 2017-05-09 |
| 9547273 | Image forming apparatus having simultaneous development and cleaning | Motonari Ito, Motoki Adachi, Kuniaki Tamagaki | 2017-01-17 |
| 9442454 | Image forming apparatus having an image bearing member charged with predetermined polarity and potential | Hiroyoshi Iwayama, Takashi Hiramatsu, Akihisa Matsukawa | 2016-09-13 |
| 9442417 | Developing device, developer regulating process, and image forming device | Ryosuke Kanai | 2016-09-13 |
| 9158231 | Image forming apparatus having process condition control | — | 2015-10-13 |
| 8942616 | Cleaning member, cleaning device and process cartridge | — | 2015-01-27 |
| 8036544 | Image forming apparatus and method of detecting amount of residual developer | Atsushi Toda, Takeo Shoji, Hideaki Hasegawa | 2011-10-11 |
| 7460798 | Image forming apparatus and method of detecting amount of residual developer | Atsushi Toda, Takeo Shoji, Hideaki Hasegawa | 2008-12-02 |
| 7215904 | Image forming apparatus group | Hideaki Hasegawa, Takeo Shoji, Atsushi Toda | 2007-05-08 |
| 7194215 | Process cartridge comprising memory medium storing information for selecting one of a plurality of alternating voltages applied to charging member and such a memory medium | Keiji Okano, Satoru Motohashi | 2007-03-20 |
| 7174112 | Image forming apparatus featuring a transfer bias having a polarity opposite to a polarity of a charged toner | Satoru Motohashi | 2007-02-06 |
| 7162173 | Image forming apparatus using an ordered set of first, second and charging AC peak to peak voltages | Satoru Motohashi | 2007-01-09 |
| 7035560 | Image forming apparatus having charging member supplied with a plurality of alternating voltages and memory for storing information for selecting the voltages | Keiji Okano, Satoru Motohashi | 2006-04-25 |