Inventor
KASAHARA NOBUO
JP86 patents
Patents
50 patentsUS7277664B2Oct 2, 2007
Image forming device, powder feeding device, toner storage container, powder storage container, and method of recycling the containers
RICOH KK104 citations99
US6628908B2Sep 30, 2003
Toner supply unit and image forming apparatus
RICOH KK175 citations99
US6628915B2Sep 30, 2003
Developer container for an image forming apparatus
RICOH KK120 citations99
US6393241B1May 21, 2002
Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner
RICOH KK181 citations99
US7603054B2Oct 13, 2009
Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder container
RICOH KK57 citations98
US7593674B2Sep 22, 2009
Body member of a powder container
RICOH KK60 citations98
US7536139B2May 19, 2009
Powder container for use in an image forming apparatus having an opening which faces horizontally
RICOH KK60 citations98
US7450891B2Nov 11, 2008
Developer container for an image forming apparatus
RICOH KK58 citations98
US7346299B2Mar 18, 2008
Developer container for an image forming apparatus
RICOH KK57 citations98
US7221891B2May 22, 2007
Body member of a powder container
RICOH KK90 citations98
US6678492B1Jan 13, 2004
Toner container and toner delivery apparatus
RICOH KK92 citations98
US6628913B2Sep 30, 2003
Method and apparatus for replenishing developer with a flexible powder container
RICOH KK87 citations98
US6597883B2Jul 22, 2003
Powder pump capable of effectively conveying powder and image forming apparatus using powder pump
RICOH KK112 citations98
US6571076B2May 27, 2003
Image forming apparatus and toner container therefor
RICOH KK76 citations98
US6542707B2Apr 1, 2003
Method and apparatus for image forming capable of effectively transferring various kinds of powder
RICOH KK101 citations98
US6526246B2Feb 25, 2003
Powder replenishing device, powder conveying device, developing apparatus using the same powder replenishing device or powder conveying device, and image forming apparatus using the same powder replenishing device or powder conveying device
RICOH KK104 citations98
US6201941B1Mar 13, 2001
Developer container for an image forming apparatus and method of conveying a developer
RICOH KK134 citations98
US5987298ANov 16, 1999
Image forming apparatus including a toner recycling mechanism
RICOH KK110 citations98
US5953567ASep 14, 1999
Screw pump, toner conveying device using the same and toner filling system
RICOH KK126 citations98
US5797074AAug 18, 1998
Image forming system
RICOH KK100 citations98
US6112046AAug 29, 2000
Image forming apparatus having recycling of residual toner
RICOH KK141 citations97
US7542703B2Jun 2, 2009
Developing device replenishing a toner or a carrier of a two-ingredient type developer and image forming apparatus including the developing device
RICOH KK45 citations96
US7130558B2Oct 31, 2006
Toner supply unit and image forming apparatus
RICOH KK32 citations96
US7085522B2Aug 1, 2006
Developer container for an image forming apparatus
RICOH KK45 citations96
US7065313B2Jun 20, 2006
Developer container, developer replenishing device using the same and image forming apparatus including the same
RICOH KK58 citations96
US6898405B2May 24, 2005
Developer container, developer replenishing device using the same and image forming apparatus including the same
RICOH KK66 citations96
US6871034B2Mar 22, 2005
Developer container for an image forming apparatus
RICOH KK36 citations96
US6785496B2Aug 31, 2004
Developer container, developing conveying device and image forming apparatus using the same
RICOH KK58 citations96
US6608983B2Aug 19, 2003
Toner container and air stream delivering mechanism
RICOH KK67 citations96
US5960246ASep 28, 1999
Image forming apparatus with powder pump
RICOH KK87 citations96
US5815784ASep 29, 1998
Cleaning device for an image forming apparatus and a toner collecting device therefor
RICOH KK70 citations96
US5032904AJul 16, 1991
Color image processing apparatus
RICOH KK64 citations96
US4239374ADec 16, 1980
Electrostatographic apparatus comprising automatic document type determination means
RICOH KK57 citations96
US4277162AJul 7, 1981
Electrophotographic apparatus comprising density sensor means
RICOH KK85 citations95
US5708949AJan 13, 1998
Image fixing device for image forming apparatus
RICOH KK61 citations94
US7406278B2Jul 29, 2008
Powder container having a lower section with multiple parts which rotatably engage with each other
RICOH KK16 citations93
US7257348B2Aug 14, 2007
Body member of a powder container
RICOH KK29 citations93
US7209689B2Apr 24, 2007
Toner supply unit and image forming apparatus
RICOH KK20 citations93
US7116928B2Oct 3, 2006
Powder discharging device and image forming apparatus using the same
RICOH KK46 citations93
US7088945B2Aug 8, 2006
Toner supply unit and image forming apparatus
RICOH KK13 citations93
US6882812B2Apr 19, 2005
Image forming apparatus including developing device and developer containing device
RICOH KK27 citations93
US5585598ADec 17, 1996
Rotary developing device for an image forming apparatus
RICOH KK33 citations93
US5561506AOct 1, 1996
Developing device for an image forming apparatus having a developer normalizing mechanism independent of a developing mechanism
RICOH KK32 citations93
US5436647AJul 25, 1995
Color image forming apparatus
RICOH KK20 citations93
US5204716AApr 20, 1993
Side-free recording apparatus
RICOH KK39 citations93
US7039346B2May 2, 2006
Flexible toner container and toner delivery apparatus
RICOH KK19 citations92
US5159392AOct 27, 1992
Image forming apparatus for forming an image on one or both sides of a recording medium
RICOH KK34 citations92
US5160969ANov 3, 1992
Image forming apparatus having a separate black developer stored for a color image
RICOH KK52 citations91
US4872037AOct 3, 1989
Image forming apparatus and control system therefor
RICOH KK25 citations89
US7356290B2Apr 8, 2008
Toner supply unit and image forming apparatus
RICOH KK9 citations84
Showing the top 50 of 86 patents by PatentIndex Score.