Issued Patents 2011
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8073357 | Developer cartridge, developing unit and image forming apparatus having seal member for preventing leakage of developer | — | 2011-12-06 |
| 8068761 | Image forming apparatus having a cleaning unit | — | 2011-11-29 |
| 8045894 | Image forming apparatus having a remaining developer circulation mechanism | Shougo Sato | 2011-10-25 |
| 8027620 | Image formation apparatus and developer cartridge | — | 2011-09-27 |
| 8000628 | Image forming apparatus with a cleaning device | Shougo Sato | 2011-08-16 |
| 7983590 | Developer cartridge and developing unit having shutter for controlling supply of developer therebetween | — | 2011-07-19 |
| D637226 | Photosensitive drum unit | Takeyuki Takagi | 2011-05-03 |
| 7929885 | Image formation apparatus with developer storage members | — | 2011-04-19 |
| 7899355 | Image forming apparatus having a cleaning unit | — | 2011-03-01 |
| 7881633 | Developer cartridge, developing device and image forming apparatus | — | 2011-02-01 |