Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1095670 | Photosensitive drum unit | Junya Sumida | 2025-09-30 |
| 12242213 | Cartridge including holder that holds electrical contact surface and has hole overlapped with the same | Shinya Kusuda, Nao Itabashi, Shuhei Hatano, Yasuo Fukamachi | 2025-03-04 |
| 12197166 | Image forming apparatus | Kazutoshi Nakamura, Yasuo Fukamachi | 2025-01-14 |
| 12174559 | Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casing | Naoya Kamimura, Hideshi Nishiyama | 2024-12-24 |
| 12092991 | Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing | Yasuo Fukamachi, Kazutoshi Nakamura | 2024-09-17 |
| 12066784 | Image forming apparatus | Nao Itabashi, Misato Osuka, Keita Shimizu, Go Iwasa, Kazutoshi Nakamura +6 more | 2024-08-20 |
| 12025942 | Image forming apparatus | Sota Hirano, Takahito Yamaji, Toshiyuki Sano, Tadao Kyotani | 2024-07-02 |
| 11914323 | Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing | Yasuo Fukamachi, Kazutoshi Nakamura | 2024-02-27 |
| 11906924 | Image forming apparatus | Toshiyuki Sano | 2024-02-20 |
| 11886129 | Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge | Yutaka Kakigahara, Satoshi Murata, Masataka Kamiya, Yasuo Fukamachi, Kazutoshi Nakamura +9 more | 2024-01-30 |
| 11860558 | Image forming apparatus | Sota Hirano, Takahito Yamaji, Toshiyuki Sano, Tadao Kyotani | 2024-01-02 |
| 11846896 | Toner cartridge including movable shutter provided with protrusion on which electrical contact surface is provided | Hideshi Nishiyama | 2023-12-19 |
| 11740583 | Image forming apparatus | Kazutoshi Nakamura, Yasuo Fukamachi | 2023-08-29 |
| 11650520 | Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casing | Naoya Kamimura, Hideshi Nishiyama | 2023-05-16 |
| 11531298 | Process cartridge and image forming apparatus | Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato | 2022-12-20 |
| 11474473 | Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulated | Takashi Shimizu, Shinya Kusuda, Tomitake Aratachi, Yasuo Fukamachi, Keita Shimizu +2 more | 2022-10-18 |
| 11333697 | Three-dimensional surface potential distribution measurement system | Tetsuo Yoshimitsu, Yuichi Tsuboi, Kunihiko Hidaka, Akiko Kumada, Hisatoshi Ikeda | 2022-05-17 |
| 11333999 | Toner cartridge including shutter rotatable between first position and second position | Kazuma Hinoue, Ryosuke Hayashi, Naoya Kamimura | 2022-05-17 |
| 11316592 | Optical module and optical communication system | Koki Sato, Keiichi Murakami, Takuya Sato | 2022-04-26 |
| 11281155 | Process cartridge and image forming apparatus | Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato | 2022-03-22 |
| 11249438 | Image forming apparatus | Kazutoshi Nakamura, Yasuo Fukamachi | 2022-02-15 |
| 10944479 | Optical module and optical communication system | Koki Sato, Keiichi Murakami, Takuya Sato | 2021-03-09 |
| 10908533 | Toner cartridge including shutter rotatable between first position and second position | Kazuma Hinoue, Ryosuke Hayashi, Naoya Kamimura | 2021-02-02 |
| 10866557 | Image forming apparatus | Kazutoshi Nakamura, Yasuo Fukamachi | 2020-12-15 |
| 10831151 | Process cartridge and image forming apparatus | Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato | 2020-11-10 |