Inventor
ISOBE TAKUNDO
JP5 patents
Patents
5 patentsUS6195519B1Feb 27, 2001
Image forming apparatus having power and control signal transfer to a revolver without contacting the revolver
RICOH KK21 citations91
US5867759AFeb 2, 1999
Color image forming apparatus with positional deviation detecting pattern and method therefor
RICOH KK39 citations88
US7509062B2Mar 24, 2009
Method and apparatus for image forming capable of effectively recycling image forming unit
RICOH KK10 citations82
US5146240ASep 8, 1992
Image forming apparatus with plural dot densities
RICOH KK21 citations80
US7058327B2Jun 6, 2006
Transfer apparatus, image forming apparatus, and method of belt-speed correction
RICOH KK4 citations59