Inventor · disambiguated record
Kohei Arakawa
Also filed as: ARAKAWA KOHEI
38 granted patents·10 pending applications·1,527 citations·filing 1984–2017
98Inventor score
Files withFUJI PHOTO FILM CO LTD16ZEON CORP15NIKKISO CO LTD3ITADANI MOTOHIRO2MATSUSHITA ELECTRIC WORKS LTD2
Top patents by PatentIndex Score
48 records- 0199US4572813AProcess for preparing fine carbon fibers in a gaseous phase reactionNIKKISO CO LTD·Filed 1984·Granted Feb 25, 1986·271 cites·9 claims
- 0298US6593984B2Quarter wave plate comprising two optically anisotropic layersFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jul 15, 2003·147 cites·11 claims
- 0398US4876078AProcess for preparing carbon fibers in gas phase growthNIKKISO CO LTD·Filed 1987·Granted Oct 24, 1989·152 cites·2 claims
- 0497US7897209B2Apparatus and method for producing aligned carbon-nanotube aggregatesZEON CORP·Filed 2009·Granted Mar 1, 2011·70 cites·12 claims
- 0595US5189538ALiquid crystal display having positive and negative birefringent compensator filmsFUJI PHOTO FILM CO LTD·Filed 1989·Granted Feb 23, 1993·134 cites·5 claims
- 0692US5138474ALiquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectivelyFUJI PHOTO FILM CO LTD·Filed 1990·Granted Aug 11, 1992·127 cites·6 claims
- 0790US6778237B2Polarizing elementFUJI PHOTO FILM CO LTD·Filed 2001·Granted Aug 17, 2004·47 cites·12 claims
- 0890US6519016B1Phase retarder comprising two optically anisotropic layersFUJI PHOTO FILM CO LTD·Filed 2000·Granted Feb 11, 2003·48 cites·9 claims
- 0989US5528400ALiquid crystal display device having negative uniaxial anisotropic film with inclined optical axis and protective filmsFUJI PHOTO FILM CO LTD·Filed 1995·Granted Jun 18, 1996·107 cites·7 claims
- 1088US6812983B2Retardation plate and fabrication method thereof, and plate for circularly polarizing light, ½ wave plate and reflection-type liquid crystal display device utilizing the retardation plateFUJI PHOTO FILM CO LTD·Filed 2001·Granted Nov 2, 2004·37 cites·22 claims
- 1187US7285323B2Optical multilayer film, polarizing plate and optical productZEON CORP·Filed 2004·Granted Oct 23, 2007·35 cites·10 claims
- 1284US6519017B1Liquid crystal display comprising liquid crystal cell, linearly polarizing membrane, cholesteric liquid crystal layer and quarter wave plateFUJI PHOTO FILM CO LTD·Filed 2000·Granted Feb 11, 2003·27 cites·8 claims
- 1384US6400433B1Circularly polarizing plate comprising linearly polarizing membrane and quarter wave plateFUJI PHOTO FILM CO LTD·Filed 1999·Granted Jun 4, 2002·64 cites·14 claims
- 1484US5646703ALiquid crystal displayFUJI PHOTO FILM CO LTD·Filed 1994·Granted Jul 8, 1997·74 cites·21 claims
- 1582US7872803B2Grid polarizing film, method for producing the film, optical laminate, method for producing the laminate, and liquid crystal displayZEON CORP·Filed 2006·Granted Jan 18, 2011·14 cites·12 claims
- 1682US5213852APhase difference film and liquid crystal display having the sameFUJI PHOTO FILM CO LTD·Filed 1991·Granted May 25, 1993·44 cites·4 claims
- 1780US9050763B2Method for producing retardation filmHATANO TAKU·Filed 2009·Granted Jun 9, 2015·5 cites·5 claims
- 1876US6346578B2Norbornene based resin composition and phase difference plateFUJI PHOTO FILM CO LTD·Filed 2001·Granted Feb 12, 2002·13 cites·20 claims
- 1973US5699136ANegative uniaxial anisotropic element and method for manufacturing the sameFUJI PHOTO FILM CO LTD·Filed 1995·Granted Dec 16, 1997·40 cites·3 claims
- 2072US7998563B2Protective film for polarizing plateZEON CORP·Filed 2006·Granted Aug 16, 2011·5 cites·12 claims
- 2172US7354632B2Optical laminateZEON CORP·Filed 2004·Granted Apr 8, 2008·8 cites·14 claims
- 2266US6853423B2Quarter wave plate comprising two optically anisotropic layersFUJI PHOTO FILM CO LTD·Filed 2003·Granted Feb 8, 2005·9 cites·33 claims
- 2364US5332818AImmunosuppressive agent and process of producing the sameTORAY INDUSTRIES·Filed 1993·Granted Jul 26, 1994·20 cites·10 claims
- 2464US4640830AProcess for preparing fine fibersNIKKISO CO LTD·Filed 1985·Granted Feb 3, 1987·15 cites·8 claims
- 2557US10533268B2Sealing material composition and gland packing containing the sealing material compositionNIPPON PILLAR PACKING·Filed 2017·Granted Jan 14, 2020·0 cites·15 claims
- 2657US10261227B2Method for producing retardation filmZEON CORP·Filed 2015·Granted Apr 16, 2019·0 cites·32 claims
- 2757US7638205B2Optical laminate film and method for producing sameZEON CORP·Filed 2004·Granted Dec 29, 2009·2 cites·18 claims
- 2857US6667794B2Collimator utilizing wavelength selective reflection and backlight systemFUJI PHOTO FILM CO LTD·Filed 2001·Granted Dec 23, 2003·5 cites·25 claims
- 2956US2011116995A1Apparatus and method for producing aligned carbon-nanotube aggregatesSHIBUYA AKIYOSHI·Filed 2011·Application pending·0 cites
- 3055US8223304B2Liquid crystal display deviceITADANI MOTOHIRO·Filed 2012·Granted Jul 17, 2012·0 cites·2 claims
- 3153US8134666B2Liquid crystal display deviceITADANI MOTOHIRO·Filed 2009·Granted Mar 13, 2012·0 cites·4 claims
- 3253US7692747B2In-plane switching mode liquid crystal display device having a biaxial optically anisotropic memberZEON CORP·Filed 2004·Granted Apr 6, 2010·5 cites·10 claims
- 3351US8202610B2Protective film for polarizing plateYOSHIHARA MASANORI·Filed 2011·Granted Jun 19, 2012·0 cites·13 claims
- 3450US2009317592A1Optical filmYOSHITOMI YASUMASA·Filed 2007·Application pending·0 cites
- 3548US7964254B2Optical laminate, optical element and liquid crystal display deviceZEON CORP·Filed 2005·Granted Jun 21, 2011·0 cites·24 claims
- 3647US9488866B2Optical laminate, optical element and liquid crystal display deviceYAMANAKA SHUNSUKE·Filed 2010·Granted Nov 8, 2016·0 cites·20 claims
- 3744US7639330B2Liquid crystal display deviceZEON CORP·Filed 2004·Granted Dec 29, 2009·2 cites·6 claims
- 3844US2007200263A1Light Diffusion Plate And Process For Producing The PlateTAZAKI SATOSHI·Filed 2005·Application pending·0 cites
- 3942US7964251B2Liquid crystal display devicePANASONIC ELEC WORKS CO LTD·Filed 2005·Granted Jun 21, 2011·0 cites·15 claims
- 4041US2010134724A1Optical Element, Polarizing Plate, Retardation Plate, Illuminating Device and Liquid Crystal DisplayZEON CORP·Filed 2006·Application pending·0 cites
- 4141US2008316404A1Liquid Crystal Display UnitMATSUSHITA ELECTRIC WORKS LTD·Filed 2005·Application pending·0 cites
- 4240US7667793B2Liquid crystal display deviceZEON CORP·Filed 2004·Granted Feb 23, 2010·0 cites·6 claims
- 4340US2006078692A1Optical laminate polarization light source device and liquid crystal display unitZEON CORP·Filed 2003·Application pending·0 cites
- 4440US2008075895A1Optical Laminated Film for Liquid Crystal Display DeviceMATSUSHITA ELECTRIC WORKS LTD·Filed 2005·Application pending·0 cites
- 4539US9897849B2Protective film for polarizing plateYOSHIHARA MASANORI·Filed 2006·Granted Feb 20, 2018·0 cites·19 claims
- 4638US2007287009A1Polarizing Plate Protective Film, Reflection Preventive Polarizing Plate and Optical ProductZEON CORP·Filed 2004·Application pending·0 cites
- 4736US2002135728A1Display substrateFUJI PHOTO FILM CO LTD·Filed 2002·Application pending·0 cites
- 4836US2018194122A1Heat conductive sheet and method of manufacturing the sameZEON CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →