Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11474473 | Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulated | Masaaki Furukawa, Takashi Shimizu, Tomitake Aratachi, Yasuo Fukamachi, Keita Shimizu +2 more | 2022-10-18 |
| 11442377 | Developing cartridge including movable holder for holding electrical contact surface | Yasuo Fukamachi | 2022-09-13 |
| 11333996 | Developing cartridge attachable to drum cartridge and having electrical contact surface electrically connected to developing memory | Yasuo Fukamachi | 2022-05-17 |
| 11231665 | Toner cartridge including detection gear, agitator gear, auger gear, and toner outlet | Hideshi Nishiyama, Naoya Kamimura, Tomonori Watanabe, Yasuo Fukamachi, Tomoya Yamamoto | 2022-01-25 |