Inventor
TAKAHATA TOSHIYA
JP23 patents
Patents
23 patentsUS6146802ANov 14, 2000
Toner and development unit and image forming apparatus using the same
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US6035154AMar 7, 2000
Image forming apparatus
SEIKO EPSON CORP37 citations92
US5729811AMar 17, 1998
Contact transfer device and image forming equipment
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US5563693AOct 8, 1996
Contact transfer device and image forming equipment
SEIKO EPSON CORP22 citations90
US7313343B2Dec 25, 2007
Image forming apparatus
SEIKO EPSON CORP12 citations84
US7187893B2Mar 6, 2007
Image transfer unit having an intermediate transfer belt to which a toner image is applied
SEIKO EPSON CORP7 citations74
US6731899B2May 4, 2004
Intermediate transfer unit
SEIKO EPSON CORP10 citations74
US6408158B1Jun 18, 2002
Intermediate transfer unit
SEIKO EPSON CORP11 citations74
US6358654B1Mar 19, 2002
Toner and development unit and image forming apparatus using the same
SEIKO EPSON CORP5 citations74
US6223015B1Apr 24, 2001
Recording medium carrier system intermediate transfer unit
SEIKO EPSON CORP12 citations74
US6173139B1Jan 9, 2001
Recording medium carrier system having a paper feed unit, a transfer unit, a fixing unit and a paper ejecting unit constructed as independent units
SEIKO EPSON CORP10 citations74
US5151741ASep 29, 1992
Electrophoretic imaging device
SEIKO EPSON CORP8 citations72
US7646994B2Jan 12, 2010
Image forming apparatus developing unit and computer system
SEIKO EPSON CORP4 citations63
US7340201B2Mar 4, 2008
Image formation device, development unit, and computer system
SEIKO EPSON CORP4 citations63
US7092660B2Aug 15, 2006
Image forming apparatus
SEIKO EPSON CORP6 citations63
US6957032B2Oct 18, 2005
Intermediate transfer unit having a primary transfer member and a secondary transfer roller
SEIKO EPSON CORP2 citations63
US6856782B2Feb 15, 2005
Intermediate transfer unit having a primary and a secondary transfer member
SEIKO EPSON CORP6 citations63
US6605401B2Aug 12, 2003
Toner and development unit and image forming apparatus using the same
SEIKO EPSON CORP1 citations63
US6281963B1Aug 28, 2001
Image forming apparatus
SEIKO EPSON CORP6 citations63
US6768880B2Jul 27, 2004
Image forming apparatus
SEIKO EPSON CORP6 citations62
US6112038AAug 29, 2000
Image forming apparatus having a stable potential at a first transfer point
SEIKO EPSON CORP6 citations62
US7929884B2Apr 19, 2011
Image forming apparatus, developing unit, and computer system
SEIKO EPSON CORP0 citations52
US7469117B2Dec 23, 2008
Image forming apparatus, developing unit, and computer system
SEIKO EPSON CORP1 citations52