Issued Patents All Time
Showing 1–25 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416881 | Image forming apparatus | Shuichi Tetsuno, Koji An, Hiroko Yokoyama, Wataru Takahashi, Shohei Ishio +2 more | 2025-09-16 |
| 12265344 | Image forming apparatus to suppress scattering of toner | HIROKO KATAGIRI, Koji An | 2025-04-01 |
| 12265355 | Image forming apparatus having grounded fixing member | Koji An | 2025-04-01 |
| 12038697 | Image forming apparatus | Shohei Ishio, Keisuke Ishizumi | 2024-07-16 |
| 12019382 | Image forming apparatus | Koji An | 2024-06-25 |
| 11971666 | Image forming apparatus and control method, that control charging voltage according to positions of developing roller | HIROKO KATAGIRI, Koji An, Takashi Mukai | 2024-04-30 |
| 11971670 | Image forming apparatus to control transfer voltage for secondary transfer to recording material | Koji An, Shuichi Tetsuno | 2024-04-30 |
| 11934117 | Image forming apparatus | Keisuke Ishizumi, Koji An | 2024-03-19 |
| 11846899 | Image forming apparatus | Shuichi Tetsuno, Koji An, Hiroko Yokoyama, Wataru Takahashi, Shohei Ishio +2 more | 2023-12-19 |
| 11841676 | Image forming apparatus controlling voltage applied to transfer member | Koji An | 2023-12-12 |
| 11841649 | Image forming apparatus providing variable transfer voltage based on transfer mode | HIROKO KATAGIRI, Koji An | 2023-12-12 |
| 11747754 | Image forming apparatus | Koji An | 2023-09-05 |
| 11656564 | Image forming apparatus which includes a belt having an electroconductive layer | Shohei Ishio, Keisuke Ishizumi, Eiichi Hamana, Noriaki Egawa | 2023-05-23 |
| 11599059 | Image forming apparatus with condensation control | Shuichi Tetsuno, Keisuke Ishizumi, Yuichiro Inaba | 2023-03-07 |
| 11537066 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Takayuki Tanaka, Tsuguhiro Yoshida, Shuichi Tetsuno | 2022-12-27 |
| 11460795 | Image forming apparatus | Keisuke Ishizumi, Hiroko Yokoyama | 2022-10-04 |
| 11435680 | Image forming apparatus which includes a belt having an electroconductive layer | Shohei Ishio, Keisuke Ishizumi, Eiichi Hamana, Noriaki Egawa | 2022-09-06 |
| 11392075 | Image-forming apparatus which controls the rotation of the intermediate transfer belt based on accumulated toner | Keisuke Ishizumi, Shohei Ishio | 2022-07-19 |
| 11327429 | Image-forming apparatus with a durable contact member that abuts against a belt | Shohei Ishio, Keisuke Ishizumi | 2022-05-10 |
| 11262673 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Takayuki Tanaka, Tsuguhiro Yoshida, Shuichi Tetsuno | 2022-03-01 |
| 11209767 | Image-forming apparatus | Shohei Ishio, Keisuke Ishizumi, Wataru Takahashi | 2021-12-28 |
| 11209766 | Cleaning device and image forming apparatus | Yuichiro Inaba, Norihiro Matsumoto, Shohei Ishio, Keisuke Ishizumi | 2021-12-28 |
| 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, Eiichi Hamana, Takahiro Ikeda, Takayuki Tanaka +1 more | 2021-10-12 |
| 10999476 | Image forming apparatus configured to perform gradation correction process | Takayuki Tanaka, Shuichi Tetsuno, Ken Nakagawa | 2021-05-04 |
| 10948844 | Color image forming apparatus | Kiyoto Toyoizumi, Masaru Shimura, Shinsuke Kobayashi, Hideo Nanataki, Yasunari Watanabe +2 more | 2021-03-16 |