Inventor
TONOMOTO YOSHIHIRO
JP23 patents
Patents
23 patentsUS5933690AAug 3, 1999
Toner recovery device
FUJITSU LTD57 citations95
US5826134AOct 20, 1998
Electrophotographing apparatus having a toner empty discriminating unit
FUJITSU LTD38 citations92
US5066983ANov 19, 1991
Cleaning unit for cleaning recording medium of an electrophotographic apparatus
FUJITSU LTD23 citations92
US4938786AJul 3, 1990
Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus
FUJITSU LTD46 citations92
US5887236AMar 23, 1999
Image forming apparatus
FUJITSU LTD29 citations91
US5036363AJul 30, 1991
Method of toner detection for replenishment in a developer
FUJITSU LTD38 citations91
US6055401AApr 25, 2000
Electrophotographic image-forming apparatus having developing device which includes a plurality of developing rollers
FUJITSU LTD17 citations84
US4984028AJan 8, 1991
Cleaning unit for cleaning recording medium of an electrophotographic apparatus
FUJITSU LTD18 citations82
US5091749AFeb 25, 1992
Toner content control apparatus
FUJITSU LTD14 citations74
US5021831AJun 4, 1991
Filter for removing smoke and toner dust used in electrophotographic/electrostatic recording apparatus
FUJITSU LTD16 citations74
US6212340B1Apr 3, 2001
Image forming apparatus utilizing a two-component developing apparatus with automatic toner replenishment and developer replacement
FUJITSU LTD12 citations73
US5754919AMay 19, 1998
Electrostatic recording apparatus utilizing superimposition of colors in a toner image to record a multicolor image
FUJITSU LTD9 citations73
US5640662AJun 17, 1997
Hot roller for thermal fixation device having elastomeric and anti-abrasive coverings
FUJITSU LTD15 citations73
US5508797AApr 16, 1996
Color image forming apparatus having toner image forming device
FUJITSU LTD16 citations73
US5164773ANov 17, 1992
Developing device used in electrophotographic field
FUJITSU LTD19 citations73
US5987280ANov 16, 1999
Developing device for electrostatic latent image
FUJITSU LTD9 citations72
US5905930AMay 18, 1999
Image forming apparatus
FUJITSU LTD8 citations72
US5617192AApr 1, 1997
Multicolor electrostatic recording apparatus and electrostatic latent image recording apparatus used therefor
FUJITSU LTD11 citations72
US5546170AAug 13, 1996
Printer with print density switching means
FUJITSU LTD12 citations71
US5355200AOct 11, 1994
Printer with print density switching means
FUJITSU LTD11 citations71
US5159391AOct 27, 1992
Electrophotographic image recording apparatus with feed rollers for orientating a sheet upwardly at a transfer station
FUJITSU LTD9 citations70
US5740501AApr 14, 1998
Photo-sensitive drum formed from extruded or drawn blank and image recording apparatus having same
FUJITSU LTD2 citations62
US6308020B1Oct 23, 2001
Printer and transfer charger
FUJITSU LTD1 citations51