Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12197158 | Stiffness measuring device, image forming system, and stiffness measuring method | Yasuo KOYANAGI, Kazumichi YOSHIDA, Kazutoshi Yoshimura | 2025-01-14 |
| 11300911 | Image forming device | Yasuhiro KOIDE, Makoto Shimazoe, Yuhei Tatsumoto | 2022-04-12 |
| 10638010 | Control device, image forming apparatus, and program | Katsuyuki Ikuta, Takeshi Tamada, Masahiro Kamiya, Shota Igo | 2020-04-28 |
| 9709931 | Excessive heating protection circuit and image forming apparatus | Katsuyuki Ikuta, Takeshi Tamada, Hiroshi Eguchi | 2017-07-18 |
| 9261841 | Image forming apparatus | Teruhiko Fujikura, Satoshi Miyajima, Tadayuki Ueda, Eiji Nishikawa, Takanobu Shiki +1 more | 2016-02-16 |
| 9031444 | Image forming apparatus provided with fixing unit for fixing images formed on paper and method of controlling heaters of the apparatus | Akinori Kimata, Tadayuki Ueda, Toru Kasamatsu, Eiji Nishikawa, Takanobu Shiki | 2015-05-12 |
| 8941845 | Image forming apparatus | Tadayuki Ueda, Toru Kasamatsu, Eiji Nishikawa, Satoshi Miyajima, Takanobu Shiki | 2015-01-27 |
| 8879940 | Image forming apparatus which controls fluctuation of fixing rollers based on a detected interval between transferred sheets of recording media | Toru Kasamatsu, Takayuki Ueda, Eiji Nishikawa, Satoshi Miyajima | 2014-11-04 |
| 8792109 | Printing control apparatus, image forming apparatus and printing system | Takeshi Tamada, Akinori Kimata, Kenji Yamamoto, Akihiro Hayashi, Kenji Tamaki | 2014-07-29 |
| 8447211 | Image forming apparatus, image fixing device and image forming system equipped therewith | Atsushi Takahashi, Masami Maruko, Youbao Peng | 2013-05-21 |
| 8417136 | Image forming apparatus, fixing device, and image forming system using the same | Teruhiko Fujikura, Toru Kasamatsu, Tadayuki Ueda, Satoshi Miyajima | 2013-04-09 |
| 8285159 | Color image forming apparatus with exposure timing control based on printing ratio | Tadayuki Ueda, Akifumi Isobe, Takashi Nara | 2012-10-09 |
| 8285185 | Fixing device and image forming apparatus using the same | Kosuke Sasaki, Toru Kasamatsu, Tadayuki Ueda, Satoshi Miyajima | 2012-10-09 |
| 8103193 | Image forming apparatus | Akifumi Isobe, Ryuji Okutomi, Hiroyuki Watanabe, Tadayuki Ueda, Takashi Nara | 2012-01-24 |
| 8059145 | Color image forming apparatus and image forming method | Tadayuki Ueda, Ryuji Okutomi, Hiroyuki Watanabe, Akifumi Isobe, Takashi Nara | 2011-11-15 |
| 7978995 | Image forming apparatus for image density adjustment | Akifumi Isobe, Shigeo Ogino, Hiroyuki Watanabe, Tadayuki Ueda, Takashi Nara | 2011-07-12 |
| 7880756 | Image forming apparatus | Norio Joichi, Atsushi Takahashi, Youbao Peng, Yoshiki Katayama, Takashi Nara | 2011-02-01 |
| 7777896 | Signal processing apparatus and image forming apparatus | Tadayuki Ueda, Hiroyuki Watanabe, Akifumi Isobe, Takashi Nara | 2010-08-17 |
| 7778579 | Color image forming apparatus which executes color misregistration correction processing | Tadayuki Ueda, Shigeo Ogino, Masaaki Goto, Hiroyuki Watanabe, Akifumi Isobe +1 more | 2010-08-17 |
| 7732947 | Power unit and image forming system | Hiroyuki Watanabe, Ryuji Okutomi, Hideo Yamane | 2010-06-08 |
| 7646516 | Image forming apparatus and reading method of two-sided document | Yoshiki Katayama, Atsushi Takahashi, Norio Joichi, Youbao Peng, Takashi Nara | 2010-01-12 |
| 7502045 | Image forming apparatus with LED head | Norio Joichi, Atsushi Takahashi, Youbao Peng, Yoshiki Katayama, Takashi Nara | 2009-03-10 |
| 7289745 | Image forming apparatus with power supply system | Takashi Nara, Norio Joichi, Youbao Peng, Yoshiki Katayama, Atsushi Takahashi | 2007-10-30 |
| 7206527 | Information forming apparatus equipped with a fixing unit | Atsushi Takahashi, Norio Joichi, Youbao Peng, Akifumi Isobe, Yoshiki Katayama | 2007-04-17 |
| 7193170 | Push button | Yoshihiki Katayama, Hiroomi Miyaki, Norio Joichi, Youbao Peng, Takashi Nara | 2007-03-20 |