Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8275295 | Toner container and toner filling method | Katsumi Harumoto, Kazuyuki Yamagishi, Keisuke Shinoda | 2012-09-25 |
| 7529498 | Image forming device having charging roller and cleaning member | Yusuke Kitagawa, Osamu Handa, Mitsuhiro Matsumoto, Junichi Ozawa | 2009-05-05 |
| 7437101 | Toner container and toner filling method | Katsumi Harumoto, Kazuyuki Yamagishi, Keisuke Shinoda | 2008-10-14 |
| 7194232 | Image forming apparatus including intermediate transfer device | Yusuke Kitagawa | 2007-03-20 |
| 6937839 | Image formation apparatus and developer collection vessel used therewith | Katsumi Harumoto | 2005-08-30 |
| 6819885 | Developer collection vessel and image formation apparatus | — | 2004-11-16 |
| 6782235 | Image formation apparatus and developer collection vessel used therewith | Katsumi Harumoto, Kouji Hamabe | 2004-08-24 |