Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9686428 | Equipment to determine line width of check image and image-forming apparatus using the same | Takashi Harashima, Takaaki Kooriya | 2017-06-20 |
| 9442413 | Image forming apparatus and exposure position adjusting method | Yuji Okugawa | 2016-09-13 |
| 9420133 | Image forming apparatus | Kazuomi Sakatani | 2016-08-16 |
| 9354541 | Image forming apparatus and exposure position adjusting method | Ryo Hasegawa | 2016-05-31 |
| 8971740 | Image forming apparatus | Takashi Harashima | 2015-03-03 |
| 8938174 | Image forming apparatus and image forming method | Takashi Harashima | 2015-01-20 |
| 8837001 | Image forming apparatus and gradation correction method for the same | Hideaki Tanaka, Takashi Harashima, Daiki Yamanaka, Kazuhiro Saito | 2014-09-16 |
| 8804194 | Image forming apparatus and image forming method | Kazuhiro Saito, Hideaki Tanaka, Takashi Harashima | 2014-08-12 |
| 8797600 | Image forming apparatus and gradation correction method with density unevenness detection | Takashi Harashima, Hideaki Tanaka, Toru Yamaguchi, Takaaki Kooriya | 2014-08-05 |
| 8781349 | Image forming apparatus performing image concentration stabilization control | Tomiko Imoto, Yoshinori Tsutsumi | 2014-07-15 |
| 8626017 | Image forming device and developer supply method including pre-supply toner detection | Kazuomi Sakatani, Yoshinori Tsutsumi | 2014-01-07 |
| 8521045 | Image forming apparatus and image density correction method therefor | Yasuyuki Inada | 2013-08-27 |
| 8233016 | Image forming apparatus, and exposure control method therefor | Tetsuya Sakai, Tatsuya Isono, Takashi Harashima, Toshio Tsuboi | 2012-07-31 |
| 8218982 | Image forming device having a trickle developing apparatus | Kazuomi Sakatani, Mitsuru Obara, Yoshinori Tsutsumi | 2012-07-10 |
| 8045872 | Image-forming apparatus containing electrophotographic system and image-forming method | Kazuomi Sakatani, Toshikuni Ando, Kiyohito Tsujihara | 2011-10-25 |
| 8023839 | Developing apparatus and image forming machine | Kazuomi Sakatani, Mitsuru Obara, Yoshinori Tsutsumi | 2011-09-20 |
| 7840148 | Image forming apparatus and method for detecting separated state of transfer member | Masaki Tanaka, Mitsuru Obara, Toshio Tsuboi, Tatsuya Isono | 2010-11-23 |
| 7697856 | Image forming apparatus and method for detecting separated state of transfer unit | Toshio Tsuboi, Masaki Tanaka, Tatsuya Isono, Mitsuru Obara | 2010-04-13 |
| 7181148 | Image forming apparatus and device for determining the density and position of a toner pattern | Tetsuya Sakai, Hironori Akashi, Tatsuya Isono, Takashi Harashima, Masaki Tanaka | 2007-02-20 |
| 7149439 | Method and device for estimating toner concentration and image forming apparatus equipped with such device | Tetsuya Sakai, Tatsuya Isono, Hironori Akashi, Toshio Tsuboi, Takashi Harashima +1 more | 2006-12-12 |
| 6982813 | Light quantity correction method for exposing device, and image forming device | Kentaro Katori, Tetsuya Sakai, Tomoki Wada | 2006-01-03 |
| 6550389 | Printing method for printing on can barrel | Hiroaki Goto, Shigenobu Murakami, Yasuhiro Takasaki, Shinji Yamada, Tooru Shimomura +1 more | 2003-04-22 |
| 6462838 | Method of and apparatus for forming an image | Kentaro Katori | 2002-10-08 |
| 6388768 | Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image | Yoshinobu Hada, Yukihiko Okuno, Masahiro Kouzaki, Kentaro Katori | 2002-05-14 |
| 6094502 | Image formation apparatus that allows correction of .gamma. correction data and adjustment method thereof | Kentaro Katori, Masaki Tanaka | 2000-07-25 |