Inventor
HAYASHI TAKAMASA
JP6 patents
Patents
6 patentsUS5144337ASep 1, 1992
Image forming apparatus capable of forming an image by dots having various diameters
RICOH KK27 citations91
US5557707ASep 17, 1996
Image forming apparatus with a scanner and method of controlling the same
RICOH KK31 citations89
US5146240ASep 8, 1992
Image forming apparatus with plural dot densities
RICOH KK21 citations80
US7221467B2May 22, 2007
Image forming apparatus and replaceable part and integrated circuit chip for the same
RICOH KK9 citations72
US7362466B2Apr 22, 2008
Image forming apparatus and replaceable part and IC chip for the same
RICOH KK4 citations61
US7016636B2Mar 21, 2006
Double-sided image forming apparatus and method
RICOH KK0 citations38