Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9052636 | Image forming apparatus | — | 2015-06-09 |
| 9042757 | Image forming apparatus | Shigeru Tanaka, Akihiro Noguchi | 2015-05-26 |
| 8768188 | Image forming apparatus | — | 2014-07-01 |
| 8744294 | Electrophotographic image forming apparatus with image density control | Akihiro Noguchi, Shigeru Tanaka | 2014-06-03 |
| 8559835 | Image forming apparatus capable of measuring an amount of adhered toner and controlling an image density | — | 2013-10-15 |
| 8385754 | Image forming apparatus featuring forced discharging of excessive developer | Hideaki Suzuki, Yoshiro Tsukada, Masahiro Ootsuka | 2013-02-26 |
| 7881638 | Developing apparatus | Akihiro Noguchi, Tadayoshi Nishihama, Akinori Tanaka | 2011-02-01 |
| 7826772 | Image forming apparatus using color toner and transparent toner | Yuichiro Toyohara, Tatsuomi Murayama, Akihiro Noguchi | 2010-11-02 |
| 7630670 | Developing apparatus and image forming apparatus | Tadayoshi Nishihama, Akihiro Noguchi, Akinori Tanaka | 2009-12-08 |
| 7596345 | Image forming apparatus with a developer comprising at least a toner and a first external additive | Yuichiro Toyohara, Tatsuomi Murayama, Akihiro Noguchi | 2009-09-29 |
| 7386261 | Image forming apparatus having movable developing devices and developer replenishment device | Akihiro Noguchi, Akinori Tanaka, Tadayoshi Nishihama | 2008-06-10 |
| 7362989 | Developing apparatus for image forming apparatus | Tadayoshi Nishihama, Akinori Tanaka, Akihiro Noguchi | 2008-04-22 |
| 7277649 | Developing apparatus and image forming method | Tadayoshi Nishihama, Akihiro Noguchi | 2007-10-02 |
| 7263318 | Image forming apparatus including an index feature for extending the life of a photosensitive member | Tadayoshi Nishihama, Akihiro Noguchi | 2007-08-28 |
| 7231168 | Image forming apparatus | — | 2007-06-12 |
| 7218870 | Image forming apparatus | — | 2007-05-15 |
| 7099609 | Developing device | Masaru Hibino, Tomoyuki Sakamaki | 2006-08-29 |
| 7054583 | Developing device including two developer carrying members | — | 2006-05-30 |
| 7054584 | Developing apparatus with first and second developing bearing members each including a magnetic field generator wherein a peak position magnetic force of the second developing members is a defined value | — | 2006-05-30 |
| 6993274 | Developing apparatus with plural developer bearing members for each image bearing member | — | 2006-01-31 |
| 6975825 | Developing apparatus including first and second magnets with poles arranged to supply developer without contamination | Tomoyuki Sakamaki, Masaru Hibino | 2005-12-13 |
| 6973281 | Developing apparatus with two developing chamber-rotatable member pairs | Masaru Hibino, Tomoyuki Sakamaki | 2005-12-06 |
| 6856773 | Image forming apparatus with electrostatic potential-based developer correction | Shigeo Kimura | 2005-02-15 |
| 6665502 | Image forming apparatus with electrostatic potential-based developer correction | Shigeo Kimura | 2003-12-16 |
| 6459862 | Developing apparatus | Yuji Sakemi, Shigeo Kimura | 2002-10-01 |