Inventor
UMEZAWA NOBUHIKO
JP13 patents
Patents
13 patentsUS6295438B1Sep 25, 2001
Method and apparatus for forming an image capable of supplying a proper amount of a lubricant to each image forming section
RICOH KK80 citations96
US5848329ADec 8, 1998
Image forming apparatus having a mounting/dismounting mechanism
RICOH KK83 citations95
US6643486B1Nov 4, 2003
Developing device for an image forming apparatus
RICOH KK15 citations92
US5953568ASep 14, 1999
Developing unit for an image forming apparatus having a magnetic rotating blade agitator
RICOH KK24 citations92
US5797063AAug 18, 1998
Image forming apparatus and cleaning device for transfer material conveyor belt
RICOH KK42 citations92
US5374980ADec 20, 1994
Color image forming apparatus utilizing liquid development
RICOH KK30 citations92
US6775506B2Aug 10, 2004
Method and apparatus for image developing capable of effectively forming an even development agent layer
RICOH KK28 citations91
US6795674B2Sep 21, 2004
Developing device for an image forming apparatus
RICOH KK13 citations83
USD554695SNov 6, 2007
Toner cartridge
RICOH KK7 citations73
US7177573B2Feb 13, 2007
Image forming apparatus with reversely rotated developer bearing members
RICOH KK8 citations73
USD574426SAug 5, 2008
Toner cartridge
RICOH KK2 citations62
USD568928SMay 13, 2008
Toner cartridge
RICOH KK4 citations62
US7254357B2Aug 7, 2007
Method and apparatus for image forming capable of effectively regulating a toner layer, developing mechanism for the apparatus, and a process cartridge provided in the apparatus
RICOH KK2 citations62