Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10831120 | Image forming apparatus | Takayuki Tanaka, Eiji Akasaka | 2020-11-10 |
| 10788769 | Image forming apparatus | Ken Nakagawa | 2020-09-29 |
| 10725402 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Takayuki Tanaka, Tsuguhiro Yoshida, Shuichi Tetsuno | 2020-07-28 |
| 10649388 | Image forming apparatus | Tsuguhiro Yoshida, Takayuki Tanaka, Shuichi Tetsuno, Takahiro Ikeda | 2020-05-12 |
| 10642195 | Image forming apparatus using intermediate transfer member having grooves and specified dynamic friction coefficient | Shohei Ishio, Keisuke Ishizumi, Takayuki Tanaka, Tsuguhiro Yoshida | 2020-05-05 |
| 10627749 | Image forming apparatus having transfer power source that applies voltage to secondary transfer member to perform secondary transfer of toner images from electrically conductive intermediate transfer belt to recording materials, toner images on image carrier primarily transferred to belt by transfer power source and contact member in which an electric potential is formed by constant-voltage element, transfer power source and auxiliary power source | Yuji Kawaguchi, Masaru Ohno, Tsuguhiro Yoshida, Takeo Kawanami, Taro Minobe +1 more | 2020-04-21 |
| 10606190 | Image forming apparatus that collects toner remaining on intermediate transfer member using member in abutment with intermediate transfer member | Tsuguhiro Yoshida, Takayuki Tanaka | 2020-03-31 |
| 10509341 | Image forming apparatus | Takayuki Tanaka, Tsuguhiro Yoshida, Shuichi Tetsuno, Takahiro Ikeda | 2019-12-17 |
| 10423115 | Image forming apparatus | Shuichi Tetsuno, Tsuguhiro Yoshida, Koji An | 2019-09-24 |
| 10401779 | Image forming apparatus | Tsuguhiro Yoshida, Shuichi Tetsuno, Takayuki Tanaka, Takahiro Ikeda, Satoru Motohashi +1 more | 2019-09-03 |
| 10372058 | Color image forming apparatus | Kiyoto Toyoizumi, Masaru Shimura, Shinsuke Kobayashi, Hideo Nanataki, Yasunari Watanabe +2 more | 2019-08-06 |
| 10289025 | Image forming apparatus for electrophotographic processing utilizing varying surface speeds | Tsuguhiro Yoshida, Takeo Kawanami, Akinori Mitsumata | 2019-05-14 |
| 10248043 | Image forming apparatus that prevents toner charged with polarity opposite normal charging polarity from being collected | Shuichi Tetsuno, Takayuki Tanaka, Tsuguhiro Yoshida, Takahiro Ikeda | 2019-04-02 |
| 10185239 | Image forming apparatus | Takayuki Tanaka, Shuichi Tetsuno, Tsuguhiro Yoshida, Takahiro Ikeda | 2019-01-22 |
| 10180643 | Image forming apparatus having intermediate transfer belt, secondary transfer member that contacts outer surface of intermediate transfer belt, opposed member opposed to secondary transfer member via intermediate transfer belt, contact member that contacts inner surface of intermediate transfer belt, and constant-voltage element through which opposed member and contact member are grounded | Yuji Kawaguchi, Masaru Ohno, Tsuguhiro Yoshida, Takeo Kawanami, Taro Minobe +1 more | 2019-01-15 |
| 10168645 | Image forming apparatus where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt | Tsuguhiro Yoshida, Masaru Shimura, Eiichi Hamana, Takahiro Ikeda, Takayuki Tanaka +1 more | 2019-01-01 |
| 9817342 | Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transer belt | Yuji Kawaguchi, Masaru Ohno, Tsuguhiro Yoshida, Takeo Kawanami, Taro Minobe +1 more | 2017-11-14 |
| 9519238 | Image forming apparatus with photoconductor drum preservation | Shuichi Tetsuno, Masaru Ohno | 2016-12-13 |
| 9507295 | Image forming apparatus | Keisuke Ishizumi, Shinsuke Kobayashi, Shuichi Tetsuno, Masaru Ohno, Satoshi Takami | 2016-11-29 |
| 9494894 | Image forming apparatus | Shuichi Tetsuno, Masaru Ohno | 2016-11-15 |
| 9454108 | Image forming apparatus | Shuichi Tetsuno, Masaru Ohno, Masaru Shimura | 2016-09-27 |
| 9417568 | Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transfer belt | Yuji Kawaguchi, Masaru Ohno, Tsuguhiro Yoshida, Takeo Kawanami, Taro Minobe +1 more | 2016-08-16 |
| 9395655 | Image forming apparatus | Shuichi Tetsuno, Masaru Ohno | 2016-07-19 |
| 9335726 | Image forming apparatus having a transfer unit frame | Masafumi Maeda, Takeo Kawanami, Akira Yoshimura, Taro Minobe | 2016-05-10 |
| 9256187 | Image forming apparatus using two power supply units to control transfer current | Masaru Ohno, Yuji Kawaguchi | 2016-02-09 |