Inventor
ISHIWATARI TAHEI
JP26 patents
Patents
26 patentsUS5950052ASep 7, 1999
Image forming apparatus
SEIKO EPSON CORP34 citations93
US6459877B1Oct 1, 2002
Fixing device which prevents damage to a fixing belt
SEIKO EPSON CORP23 citations92
US6336022B2Jan 1, 2002
Developing unit
SEIKO EPSON CORP15 citations92
US6198893B1Mar 6, 2001
Image forming apparatus having a plurality of developing units
SEIKO EPSON CORP16 citations92
US6192209B1Feb 20, 2001
Developing unit
SEIKO EPSON CORP16 citations92
US6185380B1Feb 6, 2001
Image forming apparatus having independent recording media discharge passages
SEIKO EPSON CORP29 citations92
US6163674ADec 19, 2000
Developing unit having developing roller with restraining blade
SEIKO EPSON CORP18 citations92
US6078760AJun 20, 2000
Image forming apparatus having an inverse and re-fixing sub-mode
SEIKO EPSON CORP20 citations92
US5701554ADec 23, 1997
Fixing apparatus having controller for setting a target temperature and for estimating the amount of heat transferred to a pressure roller
SEIKO EPSON CORP40 citations92
US6312788B1Nov 6, 2001
Image receiving sheet and image receiving apparatus using the same
SEIKO EPSON CORP22 citations90
US6233424B1May 15, 2001
Image receiving sheet having particular critical surface tension, viscoelastic, and rockwell hardness characteristics and image receiving apparatus using the same
SEIKO EPSON CORP23 citations90
US6226484B1May 1, 2001
Developing unit using specific developer composition
SEIKO EPSON CORP12 citations82
US6151474ANov 21, 2000
Developing unit using elastic supply roller
SEIKO EPSON CORP11 citations82
US6094554AJul 25, 2000
Developing unit having developing roller with specific side surface roughness
SEIKO EPSON CORP11 citations82
US7187893B2Mar 6, 2007
Image transfer unit having an intermediate transfer belt to which a toner image is applied
SEIKO EPSON CORP7 citations74
US6792236B2Sep 14, 2004
Fixing device for an image forming apparatus
SEIKO EPSON CORP7 citations74
US6731899B2May 4, 2004
Intermediate transfer unit
SEIKO EPSON CORP10 citations74
US6408158B1Jun 18, 2002
Intermediate transfer unit
SEIKO EPSON CORP11 citations74
US6295433B1Sep 25, 2001
Developing unit having a conveying fin for loading a supply roller with toner
SEIKO EPSON CORP7 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
US4948692AAug 14, 1990
Combination toner and printer utilizing same
SEIKO EPSON CORP18 citations72
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
US7018766B2Mar 28, 2006
Toner and production process thereof
SEIKO EPSON CORP3 citations61
US7105262B2Sep 12, 2006
Liquid developer
SEIKO EPSON CORP0 citations50