Inventor
HAYAKAWA HITOSHI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
29 patentsUS6786581B1Sep 7, 2004
Ink-jet printing apparatus and ink cartridge
SEIKO EPSON CORP80 citations98
US6338539B1Jan 15, 2002
Ink jet recording device
SEIKO EPSON CORP76 citations96
US6036299AMar 14, 2000
Ink-jet recording apparatus
SEIKO EPSON CORP69 citations96
US5260724ANov 9, 1993
Capping device for ink jet printer
SEIKO EPSON CORP55 citations96
US7121652B2Oct 17, 2006
Ink jet recording apparatus and cleaning control method for recording head incorporated therein
SEIKO EPSON CORP33 citations93
US6886927B2May 3, 2005
Ink-jet printing apparatus and ink cartridge
SEIKO EPSON CORP20 citations93
US6846062B2Jan 25, 2005
Ink jet recording apparatus and cleaning control method for recording head incorporated therein
SEIKO EPSON CORP32 citations93
US6709088B2Mar 23, 2004
Inkjet recording apparatus
SEIKO EPSON CORP43 citations93
US6481826B1Nov 19, 2002
Ink jet recording apparatus, method of discharging ink from capping unit incorporated in the apparatus, and ink composition used with the apparatus
SEIKO EPSON CORP42 citations93
US6227661B1May 8, 2001
Ink-jet printer
SEIKO EPSON CORP31 citations93
US5382969AJan 17, 1995
Ink-expelling restoring device and method for ink jet printer
SEIKO EPSON CORP38 citations93
US6481824B1Nov 19, 2002
Ink jet recording apparatus and recording head cleaning control method thereon
SEIKO EPSON CORP31 citations92
US6305778B1Oct 23, 2001
Ink-jet recording apparatus
SEIKO EPSON CORP29 citations92
US6705712B2Mar 16, 2004
Ink cartridge, ink jet recording device using the same, and method for controlling the cleaning of a recording head of the ink jet recording device
SEIKO EPSON CORP45 citations91
US6578949B2Jun 17, 2003
Ink jet recording device and method of driving and controlling the same
SEIKO EPSON CORP36 citations90
US7244013B2Jul 17, 2007
Liquid ejecting apparatus
SEIKO EPSON CORP10 citations84
US6422680B1Jul 23, 2002
Ink jet recording apparatus and cleaning control method for the same
SEIKO EPSON CORP16 citations84
US6406123B1Jun 18, 2002
Capping unit for ink jet recording head incorporated in ink jet recording apparatus and method of manufacturing the same
SEIKO EPSON CORP18 citations83
US7195345B2Mar 27, 2007
Ink-jet printing apparatus and ink cartridge
SEIKO EPSON CORP9 citations74
US6991314B2Jan 31, 2006
Ink-jet recording apparatus
SEIKO EPSON CORP9 citations74
US6637857B2Oct 28, 2003
Ink jet recording apparatus and cleaning control method for wiping device in the apparatus
SEIKO EPSON CORP11 citations74
US6260944B1Jul 17, 2001
Ink jet type recording apparatus and recording head cleaning method
SEIKO EPSON CORP11 citations74
US5907336AMay 25, 1999
Ink jet recording apparatus with ink discharge hole in nonprint region
SEIKO EPSON CORP10 citations74
US6595616B2Jul 22, 2003
Ink jet type recording apparatus
SEIKO EPSON CORP8 citations72
US7543907B2Jun 9, 2009
Ink jet recording apparatus and cleaning control method for recording head incorporated therein
SEIKO EPSON CORP1 citations63
US7524019B2Apr 28, 2009
Method for cleaning liquid ejection apparatus and liquid ejection apparatus
SEIKO EPSON CORP6 citations63
US6568788B2May 27, 2003
Ink jet recording apparatus
SEIKO EPSON CORP4 citations63
US6966624B2Nov 22, 2005
Liquid spraying device
SEIKO EPSON CORP2 citations61
US7641305B2Jan 5, 2010
Liquid ejecting apparatus
SEIKO EPSON CORP0 citations51
DAINIPPON INK & CHEMICALS
5 patentsUS7449223B2Nov 11, 2008
Polymerizable liquid crystal composition and optically anisotropic medium
DAINIPPON INK & CHEMICALS14 citations82
US6733958B2May 11, 2004
Material for photo-alignment layer, photo-alignment layer and method of manufacturing the same
DAINIPPON INK & CHEMICALS14 citations82
US9896603B2Feb 20, 2018
Curing accelerator for oxidative polymerization-type unsaturated resin, printing ink, and coating material
DAINIPPON INK & CHEMICALS2 citations73
US7141642B2Nov 28, 2006
Process for producing polymerizable polybranched polyester
DAINIPPON INK & CHEMICALS0 citations50
US8017706B2Sep 13, 2011
Process for production of polymers with iron complex catalyst
DAINIPPON INK & CHEMICALS0 citations41
DAIDO STEEL CO LTD
4 patentsUS6337459B1Jan 8, 2002
Multi-layered anti-coking heat resisting metal tube and the method for manufacturing thereof
DAIDO STEEL CO LTD67 citations94
US4902359AFeb 20, 1990
Wear-resistant titanium or titanium-alloy member and a method for manufacturing the same
DAIDO STEEL CO LTD74 citations94
US6417488B1Jul 9, 2002
Internal metal pipe welding apparatus and monitoring system
DAIDO STEEL CO LTD27 citations92
US5855699AJan 5, 1999
Method for manufacturing welded clad steel tube
DAIDO STEEL CO LTD45 citations88