Inventor
OHKUBO MASAHARU
JP43 patents
Patents
43 patentsUS5430526AJul 4, 1995
Image forming apparatus having weighting material in image bearing member and process cartridge usable with same
CANON KK131 citations98
US5682576AOct 28, 1997
Fixing device
CANON KK81 citations96
US4719489AJan 12, 1988
Recording apparatus having material feed mode dependent fixing control
CANON KK74 citations96
US6002106ADec 14, 1999
Fixing device
CANON KK29 citations93
US5565995AOct 15, 1996
System for correcting a pulse-width-modulated signal in a recording apparatus
CANON KK21 citations93
US5140349AAug 18, 1992
Recording apparatus
CANON KK27 citations93
US5124802AJun 23, 1992
Electrostatic lasar printer with a short side length of a modulation area formed by pulse width modulation set relative to a detected toner particle size
CANON KK47 citations93
US4855765AAug 8, 1989
Color image processing method and apparatus
CANON KK26 citations93
US4853768AAug 1, 1989
Color image processing apparatus with linear masking circuit having coefficients which vary in accordance with the levels of color component signals
CANON KK25 citations93
US4829323AMay 9, 1989
Color image recording apparatus
CANON KK35 citations93
US6134025AOct 17, 2000
Dot image data output apparatus
CANON KK25 citations92
US6108105AAug 22, 2000
Dot image output apparatus
CANON KK38 citations92
US6052549AApr 18, 2000
Charging roller, and process cartridge and image-forming apparatus employing the roller
CANON KK20 citations92
US5596388AJan 21, 1997
Process cartridge with an information feature and image forming apparatus for use with the same
CANON KK30 citations92
US5543899AAug 6, 1996
Charging member having a foamed layer of a material with specified density and pore properties, charging device, process cartridge and image forming apparatus featuring the charging member
CANON KK27 citations92
US5534344AJul 9, 1996
Charging member having a loosely supported charger portion
CANON KK40 citations92
US5519472AMay 21, 1996
Developing apparatus using elastic blade
CANON KK46 citations92
US5353104AOct 4, 1994
Defining member for defining thickness of one-component developer and developing device equipped with it
CANON KK51 citations92
US4626096ADec 2, 1986
Image forming apparatus for forming a visual image in accordance with image signals
CANON KK26 citations92
US5072304ADec 10, 1991
Image reading and recording apparatus with correct image mode and mirror image mode
CANON KK17 citations82
US5003326AMar 26, 1991
Color image processing method and apparatus
CANON KK17 citations82
US4851923AJul 25, 1989
Recording apparatus for recording a reversed image of an original
CANON KK14 citations82
US4725854AFeb 16, 1988
Laser emitting apparatus and laser beam printer using same
CANON KK24 citations82
US4707748ANov 17, 1987
Image recording apparatus
CANON KK22 citations82
US4369729AJan 25, 1983
Image recording apparatus
CANON KK23 citations82
US5541711AJul 30, 1996
Charging member having a cavity, charging device, process unit, and image forming apparatus having such a charging member
CANON KK18 citations81
US6427054B1Jul 30, 2002
Image forming apparatus indicating the residue of toner and the deficiency of toner
CANON KK11 citations74
US5508811AApr 16, 1996
Image reading and recording apparatus with correct image mode and mirror image mode
CANON KK8 citations74
US5488487AJan 30, 1996
Image forming apparatus, and modulating method therein
CANON KK12 citations74
US5475472ADec 12, 1995
Image process unit having charging member impedance correction feature
CANON KK15 citations74
US5463473AOct 31, 1995
Siphen for correcting a pulse-width modulated signal in a recording apparatus
CANON KK14 citations74
US5091734AFeb 25, 1992
Color image recording utilizing color correction in accordance with a predetermined order of recording of multiple color agents
CANON KK12 citations74
US4937600AJun 26, 1990
Image forming apparatus
CANON KK17 citations74
US4498755AFeb 12, 1985
Developing device for use in electrophotography
CANON KK13 citations74
US4468110AAug 28, 1984
Method and apparatus for electrophotography
CANON KK7 citations74
US5659869AAug 19, 1997
Image fixing apparatus having pressure roller with fluorine surface active agent
CANON KK11 citations71
US6477319B1Nov 5, 2002
Image recording apparatus which sends charasteristic/correction signals whenever new look-up table are selected or a pre-selected number of pages have been printed
CANON KK2 citations63
US6259885B1Jul 10, 2001
Image forming apparatus having transportation guide with fluorinated resin
CANON KK6 citations63
US5982983ANov 9, 1999
Image recording system accommodating various output devices
CANON KK2 citations63
US5859948AJan 12, 1999
Images processing apparatus for controlling binarized multi-value image data to convert pulse widths differently in at least two modes
CANON KK2 citations63
US5754188AMay 19, 1998
Data processing apparatus
CANON KK3 citations63
US4682876AJul 28, 1987
Information recording apparatus
CANON KK6 citations63
US4563694AJan 7, 1986
Image information recording apparatus
CANON KK6 citations63