Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8045897 | Developing device | Takao Izumi, Minoru Yoshida, Takashi Hatakeyama | 2011-10-25 |
| 8005405 | Developing unit and developer stirring and transporting method | Takashi Hatakeyama | 2011-08-23 |
| 8000637 | Supplying and discharging developer in an image forming apparatus, process cartridge and developing device | Takao Izumi, Takashi Hatakeyama | 2011-08-16 |
| 7995955 | Image forming apparatus, developing device and developer discharge mechanism | Takao Izumi, Norikazu Ochiai | 2011-08-09 |