Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12117765 | Image forming apparatus including toner cartridge that is detachable from housing with drum cartridge kept attached to housing | Shougo Sato, Kazuna Taguchi | 2024-10-15 |
| 8787801 | Developing apparatus and developer cartridge | — | 2014-07-22 |
| 8577263 | Developing device | — | 2013-11-05 |
| 8428493 | Image forming apparatus | — | 2013-04-23 |
| 8331829 | Developer cartridge, developing unit and image forming apparatus including the same | Ryuya Yamazaki | 2012-12-11 |
| 8229332 | Cartridge with spiral blade and image forming apparatus | — | 2012-07-24 |
| 8208839 | Developer cartridge, developing device, and process cartridge | Ryuya Yamazaki | 2012-06-26 |
| 8099020 | Developer cartridge and developing device | Nao Itabashi, Takeyuki Takagi | 2012-01-17 |
| 8099001 | Developer cartridge and developer device for detecting the amount of developer in the developer cartridge | Takeyuki Takagi | 2012-01-17 |
| 8086144 | Developing apparatus and developer cartridge | — | 2011-12-27 |
| 7949282 | Developing device and image forming apparatus including the same | — | 2011-05-24 |
| 7899344 | Image forming apparatus | — | 2011-03-01 |
| 7826779 | Developer cartridge | Hideaki Deguchi | 2010-11-02 |
| 7817945 | Developer cartridge and method of recycling the developer cartridge | Takeyuki Takagi | 2010-10-19 |
| 7805097 | Developing device and toner cartridge | Takeyuki Takagi | 2010-09-28 |
| 7756432 | Image forming apparatus and cartridge having optical detection of toner amount | — | 2010-07-13 |
| 7747193 | Developing device with detachable toner cartridge and image forming apparatus having the same | — | 2010-06-29 |
| 7742726 | Developer cartridge, developing unit and image forming apparatus including the same | Ryuya Yamazaki | 2010-06-22 |
| 7742725 | Developing device | Takeyuki Takagi | 2010-06-22 |
| 7711294 | Developer cartridge, developing device and image forming apparatus | — | 2010-05-04 |
| 7496315 | Image forming apparatus with frontal discharge of print medium | — | 2009-02-24 |