Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1095670 | Photosensitive drum unit | Masaaki Furukawa | 2025-09-30 |
| 12339616 | Image forming apparatus including detachable process cartridge having handle on developing unit | Yasuo Fukamachi, Yuki Nagashima, Sakiho HAYAKAWA, Marika Ozaki | 2025-06-24 |
| 12282290 | Process cartridge including drum cartridge having first holder, developing cartridge having second holder, and plate for connecting first holder and second holder to each other | Yasuo Fukamachi, Kazutoshi Nakamura, Hideshi Nishiyama, Shinya Kusuda | 2025-04-22 |
| 12259675 | Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder | Yasuo Fukamachi, Shinya Kusuda, Kazutoshi Nakamura, Hideshi Nishiyama | 2025-03-25 |
| 12210300 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Naoya Kamimura, Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima +4 more | 2025-01-28 |
| 11762312 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Naoya Kamimura, Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima +4 more | 2023-09-19 |
| 11378895 | Image forming apparatus with developing roller separation processing | Toshiyuki Sano, Yusuke Ikegami, Chieko Mimura, Shintaro Sakaguchi | 2022-07-05 |
| 11231659 | Image forming apparatus which switches from color to monochrome mode with charging and developing bias reduction | Shunsuke Ishii, Toshio Furukawa, Toshiyuki Sano, Shintaro Sakaguchi | 2022-01-25 |
| 9625870 | Image forming apparatus having photosensitive members and blades in contact with respective photosensitive members | — | 2017-04-18 |