Issued Patents All Time
Showing 1–25 of 270 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416896 | Developing cartridge provided with cover | Naoya Kamimura, Ryuya Yamazaki, Hideshi Nishiyama | 2025-09-16 |
| 12411439 | Image forming apparatus including process cartridge, and toner cartridge having toner shutter pivotally movable in a state where toner cartridge is attached to process cartridge | — | 2025-09-09 |
| 12405552 | Developing cartridge capable of reducing size of image forming apparatus | Junichi Yokoi | 2025-09-02 |
| 12379680 | Developing cartridge having coupling and developing roller | Naoya Kamimura | 2025-08-05 |
| 12366821 | Drum cartridge including electrical contact surface movable relative to drum frame | Naoya Kamimura | 2025-07-22 |
| 12360477 | Developing cartridge | — | 2025-07-15 |
| 12339614 | Method for removing and attaching first holder member relative to second holder member supported by housing in cartridge | Kenta Tosuji, Kazuya Kamikawa | 2025-06-24 |
| 12332598 | Cartridge including holder for holding electrical contact surface and method of recycling cartridge | Kazuya Kamikawa, Shuhei Hatano, Kazuaki Ooka | 2025-06-17 |
| 12321110 | Developing cartridge having coupling and developing roller | Naoya Kamimura | 2025-06-03 |
| 12275616 | Layer transfer film cartridge, and layer transfer device | Yukiko Nakanishi, Tomoya Ichikawa | 2025-04-15 |
| 12271142 | Developing cartridge including electrically non-conductive collar covering end portion of developing-roller shaft | Shuhei Hatano | 2025-04-08 |
| 12271144 | Developing cartridge | Junichi Yokoi | 2025-04-08 |
| 12271141 | Image forming apparatus | — | 2025-04-08 |
| 12271148 | Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the same | Isao Kishi, Yohei Hashimoto, Kouji Watanabe, Makoto Souda | 2025-04-08 |
| 12242213 | Cartridge including holder that holds electrical contact surface and has hole overlapped with the same | Shinya Kusuda, Masaaki Furukawa, Shuhei Hatano, Yasuo Fukamachi | 2025-03-04 |
| 12242220 | Image forming apparatus with a memory positioned on a drum frame | Junichi Yokoi | 2025-03-04 |
| 12242223 | Drum cartridge including movable electrical contact surface, and image-forming apparatus using the same | — | 2025-03-04 |
| 12235597 | Developing cartridge capable of reducing size of image forming apparatus | Junichi Yokoi | 2025-02-25 |
| 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 |
| 12210314 | Image forming apparatus including movable drawer having guide surface for guiding attachment of process cartridge | — | 2025-01-28 |
| 12204273 | Developing cartridge having a lever movable relative to a casing | — | 2025-01-21 |
| 12181806 | Developing cartridge | — | 2024-12-31 |
| 12169373 | Developing cartridge | — | 2024-12-17 |
| 12164245 | Cartridge having detachable cap to cover opening of casing for replenishing toner into storage bag accommodated in casing | Masahiko Hayakawa, Sakiho HAYAKAWA, Hotaka Kakutani, Shintaro Fukuoka, Haruka KIZU +1 more | 2024-12-10 |
| 12135522 | Cartridge including holder that facilitates recycling of storage medium | Kenta Tosuji, Kazuya Kamikawa | 2024-11-05 |