Inventor
SAKEMI YUJI
JP33 patents
Patents
33 patentsUS5287148AFeb 15, 1994
Magnetic seal for a developing apparatus
CANON KK42 citations93
US5267007ANov 30, 1993
Magnetic seal for preventing developer from leaking out of the longitudinal ends of a rotatable member
CANON KK44 citations93
US4844008AJul 4, 1989
Non-contact developing apparatus utilizing a tangential magnetic field
CANON KK32 citations93
US6459862B1Oct 1, 2002
Developing apparatus
CANON KK22 citations92
US6088546AJul 11, 2000
Image forming apparatus with glossiness detection
CANON KK32 citations92
US5294967AMar 15, 1994
Image forming apparatus with a plurity of adjustable developing units
CANON KK21 citations92
US5177536AJan 5, 1993
Developing apparatus having a magnetic seal
CANON KK50 citations92
US6546222B2Apr 8, 2003
Developing apparatus
CANON KK31 citations91
US6418291B1Jul 9, 2002
Image forming apparatus in which carrier is carried from developing device to cleaning container
CANON KK15 citations84
US5581326ADec 3, 1996
Image forming apparatus which supplies toner based on counted signal value
CANON KK19 citations84
US6850722B2Feb 1, 2005
Image forming apparatus
CANON KK14 citations83
US4748474AMay 31, 1988
Image forming method and apparatus using developer having toner generally from one to five microns in size and a lubricant
CANON KK22 citations82
US5270484ADec 14, 1993
Powder conveying device
CANON KK16 citations81
US5999777ADec 7, 1999
Image forming apparatus capable of temporarily breaking the contact between the developer and the photosensitive drum with use of electric field
CANON KK8 citations74
US5752151AMay 12, 1998
Image forming apparatus having a cleaning blade with a tensile strength from 80 to 120 kg/cm2
CANON KK15 citations74
US5752140AMay 12, 1998
Developing device using development bias having oscillating part and a quiescent part
CANON KK8 citations74
US5669050ASep 16, 1997
Developing apparatus using blank pulse bias
CANON KK17 citations74
US5365319ANov 15, 1994
Image forming apparatus replenishing toner by detecting the ratio of toner and carrier and the density of the developer
CANON KK15 citations74
US5313233AMay 17, 1994
Image forming apparatus
CANON KK12 citations74
US5296897AMar 22, 1994
Image forming apparatus for forming multi-image on transfer sheet with plural color toners
CANON KK9 citations74
US5239343AAug 24, 1993
Developing apparatus with regulating member having magnetic and non-magnetic members
CANON KK19 citations74
US4954404ASep 4, 1990
Developing method and device and color image forming method and apparatus using same
CANON KK17 citations74
US4777107AOct 11, 1988
Method and apparatus for image development using a two component developer with contact and non-contact development steps alternated by vibration of magnetic particles subject to electric and magnetic fields
CANON KK15 citations74
US4573061AFeb 25, 1986
Image recording apparatus
CANON KK7 citations74
US5525752AJun 11, 1996
Developing apparatus
CANON KK13 citations73
US5414497AMay 9, 1995
Powder conveying device
CANON KK11 citations73
US5581336ADec 3, 1996
Developing device preventing scattering of developing agent by conductive member
CANON KK14 citations72
US7174119B2Feb 6, 2007
Developing device featuring high viscosity developing agent and superimposed AC and DC bias voltage components
CANON KK2 citations63
US5943088AAug 24, 1999
Image forming apparatus capable of controlling duration of light emission for each picture element
CANON KK6 citations63
US5327339AJul 5, 1994
Image forming method
CANON KK6 citations63
US5268709ADec 7, 1993
Image forming apparatus
CANON KK3 citations63
US5049472ASep 17, 1991
Method and apparatus of recording image
CANON KK3 citations63
US4590496AMay 20, 1986
Image recording apparatus
CANON KK3 citations63