Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8190040 | Developing cartridge including shutter maintained in a closed state by an electrically-releasing adhesive and image forming apparatus using the same | — | 2012-05-29 |
| 8168360 | External additive, toner, and image forming apparatus | Toshiaki Ino, Yasuhiro Nishimura | 2012-05-01 |
| 8090286 | Image forming apparatus and toner supply container used therefor | Toshiaki Ino, Yasuhiro Nishimura, Masahiro Seki | 2012-01-03 |
| 8038276 | Ink cartridge and its recycling method | — | 2011-10-18 |
| 8036568 | Image forming apparatus and toner cartridge used for the same | — | 2011-10-11 |
| 7803507 | Electrophotographic photoreceptor and image forming apparatus including the same | Tatsuhiro Morita, Tomoko Kanazawa, Akihiro Kondoh, Yohichi Takesawa, Takatsugu Obata +1 more | 2010-09-28 |
| 7302210 | Electrophotographic photoreceptor and image forming apparatus having the same | Kotaro Fukushima, Hisayuki Utsumi, Yohichi Takesawa, Tatsuhiro Morita, Katsuya Takano | 2007-11-27 |