Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11099520 | Image forming apparatus executing maintenance mode for diagnosing cleaning member | Takahito Yamaji | 2021-08-24 |
| 10739724 | Image forming apparatus | Nobuyuki Tanaka | 2020-08-11 |
| 10268151 | Image forming apparatus having photoconductor and method of controlling the same | Masamitsu Takahashi, Hiroki Katoh, Yudai Minami, Katsumi Inukai | 2019-04-23 |
| 9835969 | Image forming apparatus having a plurality of selectively charged photosensitive bodies and controlling method for same | Masamitsu Takahashi, Hiroki Katoh | 2017-12-05 |
| 9207613 | Image forming apparatus | Tetsuya Okano | 2015-12-08 |
| 9128409 | Circuit board configuration for image forming apparatus | — | 2015-09-08 |
| 9116501 | Connection electrode, attachment unit, and image forming apparatus comprising the same | Shiro Ueno | 2015-08-25 |
| 9058016 | Printing apparatus | Tasuku Sugimoto, Kentaro Sugiyama, Osamu Takahashi | 2015-06-16 |
| 8929765 | Image forming apparatus | Yoshihiro Okamoto | 2015-01-06 |
| 8913903 | Image forming apparatus capable of electrically detecting usage state of process cartridge mounted therein | — | 2014-12-16 |
| 8886074 | Image forming apparatus | — | 2014-11-11 |
| 8862004 | Image forming apparatus including chargers and a current detecing unit that detects a sum of currents of the chargers | Tsuyoshi Maruyama, Katsumi Inukai | 2014-10-14 |
| 8792798 | Image forming apparatus having a configuration to prevent electric discharge in a cleaning member | Katsumi Inukai, Tsuyoshi Maruyama | 2014-07-29 |
| 8750743 | Image forming apparatus | — | 2014-06-10 |
| 8594521 | Image forming apparatus | Tsuyoshi Maruyama, Katsumi Inukai | 2013-11-26 |
| 8401407 | Image forming apparatus and method for testing connection of a voltage line for applying voltage to the image forming apparatus | — | 2013-03-19 |
| 8391728 | Image forming apparatus and voltage applying device comprising a control unit for controlling another control unit when the other control unit is abnormally restarted | Tsuyoshi Maruyama, Katsumi Inukai | 2013-03-05 |
| 8346115 | Power supply circuit identification device for identifying a type of a power supply circuit and image forming apparatus | — | 2013-01-01 |
| 8330585 | Power supply employing pulse-width modulation and digital-to-analog converter, power supply control device, and manufacturing method of the same | — | 2012-12-11 |
| 8301044 | Image forming devices including electrification control units | Katsumi Inukai | 2012-10-30 |
| 8259353 | Image forming apparatus | Tsuyoshi Maruyama | 2012-09-04 |
| 8165480 | Image forming apparatus with image carrier deterioration detection | Hiroyuki Naganawa | 2012-04-24 |
| 8086116 | Image forming apparatus having photosensitive member mounted in process cartridge | — | 2011-12-27 |
| 8019241 | Image forming apparatus | — | 2011-09-13 |
| 8004261 | Power supply unit and image forming apparatus including the same | — | 2011-08-23 |