Inventor
MATSUMOTO KENTAROH
JP4 patents
Patents
4 patentsUS7272354B2Sep 18, 2007
Cleaning unit and image forming apparatus having multiple cleaning blades
RICOH KK27 citations92
US7110696B2Sep 19, 2006
Cleaning unit, process cartridge, and image forming apparatus
RICOH KK27 citations92
US6687474B2Feb 3, 2004
Developing apparatus, image formation apparatus, and process cartridge
RICOH KK24 citations92
US6507718B2Jan 14, 2003
Method and apparatus for reducing adhesion of carrier to image bearing member
RICOH KK40 citations90