Inventor
ARAKAWA KOHEI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “ARAKAWA KOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI PHOTO FILM CO LTD
15 patentsUS6593984B2Jul 15, 2003
Quarter wave plate comprising two optically anisotropic layers
FUJI PHOTO FILM CO LTD147 citations99
US5528400AJun 18, 1996
Liquid crystal display device having negative uniaxial anisotropic film with inclined optical axis and protective films
FUJI PHOTO FILM CO LTD107 citations98
US5189538AFeb 23, 1993
Liquid crystal display having positive and negative birefringent compensator films
FUJI PHOTO FILM CO LTD134 citations98
US5138474AAug 11, 1992
Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively
FUJI PHOTO FILM CO LTD127 citations98
US6400433B1Jun 4, 2002
Circularly polarizing plate comprising linearly polarizing membrane and quarter wave plate
FUJI PHOTO FILM CO LTD64 citations96
US6778237B2Aug 17, 2004
Polarizing element
FUJI PHOTO FILM CO LTD47 citations93
US6519016B1Feb 11, 2003
Phase retarder comprising two optically anisotropic layers
FUJI PHOTO FILM CO LTD48 citations93
US6519017B1Feb 11, 2003
Liquid crystal display comprising liquid crystal cell, linearly polarizing membrane, cholesteric liquid crystal layer and quarter wave plate
FUJI PHOTO FILM CO LTD27 citations93
US5646703AJul 8, 1997
Liquid crystal display
FUJI PHOTO FILM CO LTD74 citations93
US6812983B2Nov 2, 2004
Retardation plate and fabrication method thereof, and plate for circularly polarizing light, ½ wave plate and reflection-type liquid crystal display device utilizing the retardation plate
FUJI PHOTO FILM CO LTD37 citations92
US5699136ADec 16, 1997
Negative uniaxial anisotropic element and method for manufacturing the same
FUJI PHOTO FILM CO LTD40 citations92
US5213852AMay 25, 1993
Phase difference film and liquid crystal display having the same
FUJI PHOTO FILM CO LTD44 citations92
US6853423B2Feb 8, 2005
Quarter wave plate comprising two optically anisotropic layers
FUJI PHOTO FILM CO LTD9 citations74
US6346578B2Feb 12, 2002
Norbornene based resin composition and phase difference plate
FUJI PHOTO FILM CO LTD13 citations74
US6667794B2Dec 23, 2003
Collimator utilizing wavelength selective reflection and backlight system
FUJI PHOTO FILM CO LTD5 citations63
ZEON CORP
11 patentsUS7897209B2Mar 1, 2011
Apparatus and method for producing aligned carbon-nanotube aggregates
ZEON CORP70 citations96
US7285323B2Oct 23, 2007
Optical multilayer film, polarizing plate and optical product
ZEON CORP35 citations92
US7872803B2Jan 18, 2011
Grid polarizing film, method for producing the film, optical laminate, method for producing the laminate, and liquid crystal display
ZEON CORP14 citations83
US7354632B2Apr 8, 2008
Optical laminate
ZEON CORP8 citations74
US7998563B2Aug 16, 2011
Protective film for polarizing plate
ZEON CORP5 citations73
US7692747B2Apr 6, 2010
In-plane switching mode liquid crystal display device having a biaxial optically anisotropic member
ZEON CORP5 citations60
US7639330B2Dec 29, 2009
Liquid crystal display device
ZEON CORP2 citations60
US7638205B2Dec 29, 2009
Optical laminate film and method for producing same
ZEON CORP2 citations56
US10261227B2Apr 16, 2019
Method for producing retardation film
ZEON CORP0 citations51
US7964254B2Jun 21, 2011
Optical laminate, optical element and liquid crystal display device
ZEON CORP0 citations51
US7667793B2Feb 23, 2010
Liquid crystal display device
ZEON CORP0 citations49
NIKKISO CO LTD
3 patentsUS4572813AFeb 25, 1986
Process for preparing fine carbon fibers in a gaseous phase reaction
NIKKISO CO LTD271 citations99
US4876078AOct 24, 1989
Process for preparing carbon fibers in gas phase growth
NIKKISO CO LTD152 citations98
US4640830AFeb 3, 1987
Process for preparing fine fibers
NIKKISO CO LTD15 citations74