Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11467532 | Access restriction device for consumable component and image forming apparatus including the access restriction device | Emi Kita, Hiroshi Okamoto | 2022-10-11 |
| 8948679 | Sheet conveyance device and image forming apparatus including same | Hiroaki Murakami, Yasuhisa Ehara, Tetsuji Nishikawa, Yasuhiro Maehata, Jun Yasuda +1 more | 2015-02-03 |
| 8903277 | Drive transmitter and image forming apparatus | Masahiro Ishida, Yohei Miura, Kimiharu Yamazaki | 2014-12-02 |
| 8824930 | Synchronized drive unit and image forming apparatus having the synchronized drive unit | Kimiharu Yamazaki, Masahiro Ishida, Yohei Miura, Shinya Shimizu | 2014-09-02 |
| 8447212 | Image forming apparatus | Yasuhisa Ehara, Tetsuji Nishikawa, Yasuhiro Maehata, Jun Yasuda | 2013-05-21 |
| 8385778 | Method and apparatus for image forming capable of effectively eliminating color displacement by recognizing a rotational position of a rotating member with a mechanism using detection marks | Joh Ebara, Toshiyuki Uchida | 2013-02-26 |
| 8346111 | Image forming device | Yasuhiro Maehata, Yasuhisa Ehara, Tetsuji Nishikawa, Jun Yasuda, Hiroaki Murakami | 2013-01-01 |
| 8340552 | Image forming apparatus | Yasuhiro Maehata, Tetsuji Nishikawa, Masahiro Ishida, Yasuhisa Ehara, Jun Yasuda | 2012-12-25 |
| 8331822 | Image forming apparatus and image forming method of effectively detecting a speed deviation pattern of the image forming apparatus | Kazuhiko Kobayashi, Joh Ebara, Yasuhisa Ehara, Kouji Amanai, Seiichi Handa +3 more | 2012-12-11 |
| 8295736 | Image forming apparatus | Yasuhisa Ehara, Tetsuji Nishikawa, Yasuhiro Maehata, Jun Yasuda | 2012-10-23 |
| 8254813 | Multicolor imaging system | Yasuhisa Ehara, Tetsuji Nishikawa, Yasuhiro Maehata, Jun Yasuda, Hiroaki Murakami | 2012-08-28 |
| 8185018 | Method and apparatus for image forming capable of effectively eliminating color displacement by recognizing a rotational position of a rotating member with a mechanism using detection marks | Joh Ebara, Toshiyuki Uchida | 2012-05-22 |
| 8095028 | Image forming apparatus and image forming method | Yasuhisa Ehara, Jun Yasuda, Tetsuji Nishikawa, Yasuhiro Maehata | 2012-01-10 |
| 8064801 | Drive transmission device, and image forming apparatus and process cartridge using same | Keisuke Sugiyama, Yasuhisa Ehara, Toshiyuki Uchida | 2011-11-22 |
| 8010026 | Image forming system and method of detecting color misregistration | Kazuhiko Kobayashi, Yasuhisa Ehara, Joh Ebara, Toshiyuki Uchida, Keisuke Sugiyama | 2011-08-30 |
| 8010019 | Image forming apparatus | Joh Ebara, Kazuhiko Kobayashi, Keisuke Sugiyama, Toshiyuki Uchida, Yasuhisa Ehara | 2011-08-30 |
| 7991326 | Image forming apparatus having enhanced controlling method for reducing deviation of superimposed images | Yasuhisa Ehara, Kazuhiko Kobayashi, Joh Ebara, Seichi Handa, Yuji Matsuda | 2011-08-02 |
| 7937007 | Image forming apparatus and image forming method of effectively detecting a speed deviation pattern of the image forming apparatus | Kazuhiko Kobayashi, Joh Ebara, Yasuhisa Ehara, Kouji Amanai, Seiichi Handa +3 more | 2011-05-03 |
| 7885587 | Image forming apparatus with color shift correction suppressing periodic fluctuations of a surface moving speed of a latent image support | Hiromichi Matsuda, Toshiyuki Andoh, Yasuhisa Ehara, Kazuhiko Kobayashi, Seiichi Handa | 2011-02-08 |
| 7796929 | Method of detecting a phase difference of image bearing members and an image forming apparatus using the method | Joh Ebara, Toshiyuki Uchida | 2010-09-14 |
| 7778575 | Imaging apparatus adjusting a rotational stop phase based on a calculated rotational phase | Yuji Matsuda, Yasuhisa Ehara, Kazuhiko Kobayashi, Joh Ebara, Seiichi Handa +1 more | 2010-08-17 |
| 7773914 | Method and apparatus for image forming capable of effectively eliminating color displacement by recognizing a rotational position of a rotating member with a mechanism using detection marks | Joh Ebara, Toshiyuki Uchida | 2010-08-10 |
| 7729024 | Color drift error correcting method and image forming apparatus | Kazuhiko Kobayashi, Joh Ebara, Yasuhisa Ehara, Toshiyuki Uchida, Seiichi Handa +1 more | 2010-06-01 |
| 7697867 | Image forming apparatus with fluctuation-pattern detection and fine-tuning-pattern correction | Yasuhisa Ehara, Kazuhiko Kobayashi, Joh Ebara, Toshiyuki Uchida, Keisuke Sugiyama | 2010-04-13 |
| 7693468 | Image forming apparatus capable of effectively forming a quality color image | Yasuhisa Ehara, Kazuhiko Kobayashi, Joh Ebara, Kouji Amanai, Seiichi Handa +3 more | 2010-04-06 |