Inventor
HANADA MOTONORI
JP4 patents
Patents
4 patentsUS6381435B2Apr 30, 2002
Color image forming apparatus
RICOH KK163 citations98
US6829465B2Dec 7, 2004
Method and apparatus for image forming capable of effectively performing color displacement detection
RICOH KK38 citations92
US5953568ASep 14, 1999
Developing unit for an image forming apparatus having a magnetic rotating blade agitator
RICOH KK24 citations92
US6690896B2Feb 10, 2004
Image forming apparatus, replacement assembly for image forming apparatus and integrated circuit chip therefor
RICOH KK22 citations91