Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10407263 | Sheet conveying apparatus, image forming apparatus, method for estimating basis weight of sheet, and program for estimating basis weight of sheet | Shun Sugai, Kazuhiko Kowase, Hideaki Komiyama | 2019-09-10 |
| 10148167 | Power supply device and control method | Toru Kasamatsu, Kouei Cho | 2018-12-04 |
| 10133218 | Phase control device, image forming apparatus, and recording medium | Junichi Masuda, Toru Kasamatsu, Masahiro Nonoyama, Akimasa Ishikawa | 2018-11-20 |
| 10126692 | Power supply control device and image forming apparatus | Seiichi Kirikubo, Taku Kimura, Akinori Kimata, Takeshi Tamada | 2018-11-13 |
| 10069425 | Switching power supply device for reducing energy loss | Kouei Cho, Toru Kasamatsu | 2018-09-04 |
| 9927759 | Power supply device for suppressing cross regulation and image forming apparatus including power supply device | Toru Kasamatsu, Kouei Cho | 2018-03-27 |
| 9823609 | Image forming apparatus | Takeshi Tamada, Seiichi Kirikubo, Akinori Kimata | 2017-11-21 |
| 9749489 | Power control device and image forming device | Junichi Masuda, Masahiro Nonoyama, Taku Kimura | 2017-08-29 |
| 9703240 | Fuser control device and image forming apparatus | Seiichi Kirikubo, Akinori Kimata, Takeshi Tamada | 2017-07-11 |
| 9645541 | Electric power supply device which can reduce the amount of power consumption | Kouei Cho, Toru Kasamatsu, Yohei Yamada | 2017-05-09 |
| 9423743 | Unit checking device, unit, and image forming apparatus | Yohei Yamada, Toru Kasamatsu | 2016-08-23 |
| 9372470 | Apparatus for detecting an abnormal circumstance at a connection between the apparatus and an attached detachable unit | Yohei Yamada, Toru Kasamatsu, Kouei Cho | 2016-06-21 |
| 9335710 | Electric power supply control device which can increase power converting efficiency | Taku Kimura, Yohei Yamada, Morio Kinoshita, Toru Kasamatsu, Kouei Cho | 2016-05-10 |
| 9256188 | Image forming apparatus | Toru Kasamatsu, Yohei Yamada, Kouei Cho | 2016-02-09 |
| 8811847 | Image forming apparatus and power control device | Junichi Masuda, Taku Kimura, Takahiro Yokoya | 2014-08-19 |
| 8531718 | Image forming device having operating information managing function | Kunio Furukawa | 2013-09-10 |
| 8288974 | Power supply control device for controlling power supply connected to motor | Kunio Furukawa | 2012-10-16 |
| 5953223 | Power supply unit capable of high frequency switching for powering an image induction heat fusing apparatus | Takeshi Kato, Eiji Okabayashi | 1999-09-14 |
| 5589871 | Image forming apparatus with safety switch and current dissipating controller | Kunihiko Omura | 1996-12-31 |
| 5519190 | Heater driving device for supplying AC power to a heater | — | 1996-05-21 |