Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429800 | Image forming apparatus with fixing device having lever and fixed handle | Daisuke Ishizuka, Misato Osuka | 2025-09-30 |
| 12271126 | Image forming apparatus configured to perform cleaning operation for cleaning drum cleaning roller configured to collect toner on photosensitive drum | Toshio Furukawa, Koji Ogawa, Fan Xu, Kazuma Hinoue, Hotaka Kakutani +12 more | 2025-04-08 |
| 12147171 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Kazuaki Ooka, Junichi Hashimoto, Keigo Nakajima, Kengo Yada | 2024-11-19 |
| 11709458 | Image forming apparatus capable of double-side printing | Keita Suzuki | 2023-07-25 |
| 11537061 | Image forming apparatus, and control method for the same | Keigo Nakajima, Toshio Furukawa | 2022-12-27 |
| 11537062 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Kazuaki Ooka, Junichi Hashimoto, Keigo Nakajima, Kengo Yada | 2022-12-27 |
| 11415912 | Developing cartridge including agitator configured to contact peripheral surface of supply roller | Hotaka Kakutani, Kazuaki Ooka, Kengo Yada, Ayaka Komori, Keigo Nakajima +1 more | 2022-08-16 |
| 11143981 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Kazuaki Ooka, Junichi Hashimoto, Keigo Nakajima, Kengo Yada | 2021-10-12 |
| 10901340 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Kazuaki Ooka, Junichi Hashimoto, Keigo Nakajima, Kengo Yada | 2021-01-26 |
| 10890858 | Development device | Kengo Yada, Keigo Nakajima, Kazuaki Ooka | 2021-01-12 |
| 10739698 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Kazuaki Ooka, Junichi Hashimoto, Keigo Nakajima, Kengo Yada | 2020-08-11 |
| 10691039 | Charge removal process in image forming apparatus | Kazutoshi Kotama, Chieko Mimura, Kengo Yada, Hotaka Kakutani | 2020-06-23 |
| 10684584 | Development device | Keigo Nakajima, Kengo Yada, Kei Katagiri, Kazuaki Ooka | 2020-06-16 |
| 10488807 | Charge removal process in image forming apparatus | Kazutoshi Kotama, Chieko Mimura, Kengo Yada, Hotaka Kakutani | 2019-11-26 |
| 10452023 | Image forming apparatus and drum cartridge | Keigo Nakajima, Mayu Wakamatsu, Masatoshi Shiraki, Kei Katagiri | 2019-10-22 |
| 10444657 | Charge voltage controller for process unit of image forming apparatus, method of controlling the same, and non-transitory computer-readable storage medium | Kengo Yada, Hiroshige Hiramatsu, Chieko Mimura, Hotaka Kakutani | 2019-10-15 |
| 10386784 | Image forming apparatus including handle cover configured to cover handle of drum cartridge | Mayu Wakamatsu, Masatoshi Shiraki, Kei Katagiri, Keigo Nakajima | 2019-08-20 |
| 10289019 | Image forming apparatus that controls cleaning ability of cleaner and control method thereof | Hotaka Kakutani, Kazutoshi Kotama, Chieko Mimura, Kengo Yada | 2019-05-14 |
| 10274862 | Image forming apparatus including drum cartridge | Masatoshi Shiraki, Mayu Wakamatsu, Keigo Nakajima, Kei Katagiri | 2019-04-30 |
| 10254678 | Image forming apparatus having image bearing member and collection device to collect materials adhered on the image bearing member | Yuichi Matsushita, Hiroshige Hiramatsu, Chieko Mimura, Kengo Yada, Hotaka Kakutani | 2019-04-09 |
| 10248072 | Cleaning roller provided with shaft and elastic body wound thereabout | Kengo Yada, Keigo Nakajima, Yuichi Matsushita, Hotaka Kakutani, Atsushi Ozawa | 2019-04-02 |
| 10031467 | Cleaning roller provided with shaft and elastic body wound thereabout | Kengo Yada, Keigo Nakajima, Yuichi Matsushita, Hotaka Kakutani, Atsushi Ozawa | 2018-07-24 |
| 9989914 | Cleaning roller and cleaning device | Kengo Yada, Yuichi Matsushita, Keigo Nakajima, Hotaka Kakutani, Atsushi Ozawa | 2018-06-05 |
| 9952551 | Image forming apparatus for performing scraping process to scrape photosensitive member | Kengo Yada, Yuichi Matsushita, Chieko Mimura, Hiroshige Hiramatsu, Hotaka Kakutani | 2018-04-24 |
| 9766572 | Developing cartridge and process cartridge | Soun Kanada, Takashi Shimizu | 2017-09-19 |