Inventor
MATSUDA ITARU
JP21 patents
Patents
21 patentsUS5631725AMay 20, 1997
Image transfer device for an image forming apparatus
RICOH KK57 citations96
US5812919ASep 22, 1998
Image transferring device for an image forming apparatus
RICOH KK74 citations95
US4916547AApr 10, 1990
Color image forming apparatus
RICOH KK90 citations95
US5659843AAug 19, 1997
Image transferring device for image forming equipment
RICOH KK61 citations94
US5897241AApr 27, 1999
Image transferring device for image forming equipment
RICOH KK19 citations92
US5822667AOct 13, 1998
Transfer separator
RICOH KK38 citations92
US5666622ASep 9, 1997
Image transferring device and medium separating device for an image forming apparatus
RICOH KK35 citations92
US5640660AJun 17, 1997
Image transferring device for image forming equipment
RICOH KK23 citations92
US5557384ASep 17, 1996
Image transferring device for image forming equipment
RICOH KK28 citations92
US5495317AFeb 27, 1996
Image transfer device for an image forming apparatus
RICOH KK23 citations92
US5461461AOct 24, 1995
Image transferring device and medium separating device for an image forming apparatus
RICOH KK40 citations92
US5189479AFeb 23, 1993
Image transferring device for a color image recorder
RICOH KK30 citations92
US4984024AJan 8, 1991
Image transfer unit for image recording apparatus
RICOH KK39 citations92
US4745282AMay 17, 1988
Ventilated corona charging
RICOH KK39 citations91
US6173148B1Jan 9, 2001
Image forming apparatus with a transfer member having an inherent volume resistance less than that of an inner layer of a transport support element
RICOH KK44 citations90
US5978617ANov 2, 1999
Image transferring device for image forming equipment
RICOH KK15 citations82
US6525753B2Feb 25, 2003
Image forming apparatus having developing device including developing rollers with differing flux density and optical writing device using xonality data of four levels or less
RICOH KK9 citations74
US7184678B2Feb 27, 2007
Image forming apparatus with improved separatability of transfer material
RICOH KK9 citations71
US6859630B2Feb 22, 2005
Image transferring and recording medium conveying device and image forming apparatus including the same
RICOH KK7 citations71
US6002905ADec 14, 1999
Belt transfer device for an image forming apparatus
RICOH KK4 citations63
US7769310B2Aug 3, 2010
Image forming apparatus with improved separability of transfer material
RICOH KK1 citations50