Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7499662 | Developing apparatus, process cartridge and image forming apparatus having toner leakage prevention member | Fumikazu Sato | 2009-03-03 |
| 7471921 | Developing device and image forming apparatus | Masahiro Ishii, Isao Kishi | 2008-12-30 |
| 7352981 | Developing apparatus, process cartridge and image forming apparatus having toner leakage prevention member | Fumikazu Sato | 2008-04-01 |
| 7336913 | Developing apparatus, process cartridge and image forming apparatus for preventing leakage | Fumikazu Sato, Masahiro Ishii, Yukiko Nakaya, Hiroya Fukuta, Nao Itabashi +1 more | 2008-02-26 |
| 7292802 | Developing apparatus and assembly method of developing apparatus | Hiroya Fukuta, Manabu Kato, Masahiro Ishii, Masatoshi Shiraki | 2007-11-06 |
| 7146121 | Process unit, photoconductive unit, developing unit, and image forming apparatus | Mitsuru Horinoe, Masahiro Ishii, Isao Kishi, Satoru Ishikawa | 2006-12-05 |
| 6708009 | Image forming device having paper dust removing units | Makoto Hattori, Kazushi Fukuta | 2004-03-16 |
| 6505019 | Image forming apparatus having paper dust removing means | Shougo Sato | 2003-01-07 |
| 6415119 | Paper powder collector, process cartridge and image forming apparatus | Soichiro Nishimura, Kazushi Fukuta | 2002-07-02 |
| 6304735 | Image forming apparatus having an electrically charged paper dust removing brush | Soichiro Nishimura | 2001-10-16 |
| 6219505 | Image forming apparatus having paper-dust removing devices | Shougo Sato, Masahiro Ishii, Satoru Ishikawa | 2001-04-17 |