Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11599059 | Image forming apparatus with condensation control | Shinji Katagiri, Keisuke Ishizumi, Yuichiro Inaba | 2023-03-07 |
| 11537066 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Shinji Katagiri, Takayuki Tanaka, Tsuguhiro Yoshida | 2022-12-27 |
| 11526116 | Image forming apparatus with collection | Kazuhiro Funatani, Shinsuke Kobayashi, Toshihiko Takayama, Jun Hara | 2022-12-13 |
| 11262673 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Shinji Katagiri, Takayuki Tanaka, Tsuguhiro Yoshida | 2022-03-01 |
| 11143987 | Imaging forming apparatus with enhanced primary transferability where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt | Tsuguhiro Yoshida, Masaru Shimura, Shinji Katagiri, Eiichi Hamana, Takahiro Ikeda +1 more | 2021-10-12 |
| 10999476 | Image forming apparatus configured to perform gradation correction process | Takayuki Tanaka, Shinji Katagiri, Ken Nakagawa | 2021-05-04 |
| 10725402 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Shinji Katagiri, Takayuki Tanaka, Tsuguhiro Yoshida | 2020-07-28 |
| 10649388 | Image forming apparatus | Tsuguhiro Yoshida, Shinji Katagiri, Takayuki Tanaka, Takahiro Ikeda | 2020-05-12 |
| 10509341 | Image forming apparatus | Takayuki Tanaka, Shinji Katagiri, Tsuguhiro Yoshida, Takahiro Ikeda | 2019-12-17 |
| 10423115 | Image forming apparatus | Shinji Katagiri, Tsuguhiro Yoshida, Koji An | 2019-09-24 |
| 10401779 | Image forming apparatus | Shinji Katagiri, Tsuguhiro Yoshida, Takayuki Tanaka, Takahiro Ikeda, Satoru Motohashi +1 more | 2019-09-03 |
| 10289036 | Image forming apparatus | Ken Yokoyama, Hiroyuki Kadowaki, Kuniaki Kasuga | 2019-05-14 |
| 10248043 | Image forming apparatus that prevents toner charged with polarity opposite normal charging polarity from being collected | Shinji Katagiri, Takayuki Tanaka, Tsuguhiro Yoshida, Takahiro Ikeda | 2019-04-02 |
| 10185239 | Image forming apparatus | Takayuki Tanaka, Shinji Katagiri, Tsuguhiro Yoshida, Takahiro Ikeda | 2019-01-22 |
| 10168645 | Image forming apparatus where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt | Tsuguhiro Yoshida, Masaru Shimura, Shinji Katagiri, Eiichi Hamana, Takahiro Ikeda +1 more | 2019-01-01 |
| 9785102 | Rotatable fixing member, manufacturing method thereof and fixing device | Masahito Omata, Shoji Umehara, Akeshi Asaka, Masayuki Onuma, Yusuke Baba +1 more | 2017-10-10 |
| 9599923 | Image forming apparatus with control of developing bias and charging bias | Takuya Kitamura, Hideaki Hasegawa | 2017-03-21 |
| 9519238 | Image forming apparatus with photoconductor drum preservation | Shinji Katagiri, Masaru Ohno | 2016-12-13 |
| 9507295 | Image forming apparatus | Keisuke Ishizumi, Shinsuke Kobayashi, Shinji Katagiri, Masaru Ohno, Satoshi Takami | 2016-11-29 |
| 9494894 | Image forming apparatus | Shinji Katagiri, Masaru Ohno | 2016-11-15 |
| 9454108 | Image forming apparatus | Shinji Katagiri, Masaru Ohno, Masaru Shimura | 2016-09-27 |
| 9395655 | Image forming apparatus | Shinji Katagiri, Masaru Ohno | 2016-07-19 |
| 9354587 | Image forming apparatus with cleaning unit | Takahiro Ikeda, Yuta Isobe, Shunsuke Mizukoshi, Ryosuke Kanai | 2016-05-31 |
| 9323173 | Image forming apparatus | Hideo Kihara, Motoki Adachi | 2016-04-26 |
| 9239548 | Image forming apparatus | Takahiro Ikeda, Yuta Isobe, Shunsuke Mizukoshi | 2016-01-19 |