Inventor
SAKURAI KAZUSHIGE
JP30 patents
Patents
30 patentsUS5430526AJul 4, 1995
Image forming apparatus having weighting material in image bearing member and process cartridge usable with same
CANON KK131 citations98
US5923917AJul 13, 1999
Image forming apparatus, and a cartridge having a developer container detachably mountable on such apparatus
CANON KK68 citations96
US5802419ASep 1, 1998
Image forming apparatus and process cartridge for image forming apparatus
CANON KK70 citations96
US5765077AJun 9, 1998
Charging member, charging device and process cartridge detachably mountable to image forming apparatus
CANON KK52 citations96
US7095967B2Aug 22, 2006
Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame
CANON KK21 citations93
US6859627B2Feb 22, 2005
Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame
CANON KK19 citations93
US6512895B2Jan 28, 2003
Process cartridge and electrophotographic image forming system
CANON KK39 citations93
US6397018B1May 28, 2002
Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus
CANON KK29 citations93
US6330402B1Dec 11, 2001
Developer amount indicating method, electrophotographic image forming apparatus and process cartridge
CANON KK33 citations93
US6912366B1Jun 28, 2005
Image forming apparatus comprising means for detecting an amount of developer contained in a developer container, a memory for storing the amount detected by the detecting means, and control means for updating the information stored in the memory
CANON KK16 citations92
US6459861B1Oct 1, 2002
Image forming apparatus, and a cartridge having a developer container detachably mountable on such apparatus
CANON KK29 citations92
US5682585AOct 28, 1997
Developing apparatus generating electric field between developer carrying member and developer layer regulating member
CANON KK32 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
US5475471ADec 12, 1995
Changing member having a charging surface arranged with respect to a tangent line
CANON KK40 citations92
US6892035B2May 10, 2005
Developing device, a process cartridge, and an electrophotographic image forming apparatus for detecting an amount of developer
CANON KK19 citations84
US6850714B2Feb 1, 2005
Image forming apparatus, cartridge, image forming system and storage medium
CANON KK16 citations84
US6408143B2Jun 18, 2002
Electrophotographic image forming apparatus
CANON KK18 citations84
US5541711AJul 30, 1996
Charging member having a cavity, charging device, process unit, and image forming apparatus having such a charging member
CANON KK18 citations81
US7068955B2Jun 27, 2006
Image forming apparatus having developer amount detector
CANON KK9 citations74
US6925267B2Aug 2, 2005
Memory device storing information warning a user about the developer-remaining amount, a process cartridge including a memory storing such information, and a control system and a memory system for warning a user about the developer-remaining amount
CANON KK7 citations74
US6807382B1Oct 19, 2004
Image forming apparatus and cartridge detachably mountable thereto
CANON KK5 citations74
US6608975B2Aug 19, 2003
Image forming apparatus and cartridge detachably mountable thereto
CANON KK6 citations74
US6597876B1Jul 22, 2003
Image forming apparatus and cartridge detachably mountable thereto
CANON KK12 citations74
US6516159B1Feb 4, 2003
Developer amount indicating method and electrophotographic image forming apparatus
CANON KK8 citations74
US6438327B1Aug 20, 2002
Process cartridge having storage device which communicates with image forming apparatus
CANON KK12 citations73
US5666606ASep 9, 1997
Image forming apparatus comprising contact type charging member
CANON KK16 citations73
US6694107B2Feb 17, 2004
Image forming apparatus and cartridge detachably mountable thereto
CANON KK4 citations63
US6859626B2Feb 22, 2005
Process cartridge having storage device which communicates with image forming apparatus
CANON KK4 citations62
US7058319B2Jun 6, 2006
Image forming apparatus and cartridge detachably mountable thereto
CANON KK0 citations52