Inventor · disambiguated record
Kei Sakamoto
Also filed as: SAKAMOTO KEI
80 granted patents·38 pending applications·395 citations·filing 1995–2022
99Inventor score
Top patents by PatentIndex Score
118 records- 0196US9207360B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic bodySAKAMOTO KEI·Filed 2012·Granted Dec 8, 2015·17 cites·20 claims
- 0295US11069459B2Covered electrical wire and terminal-equipped electrical wireAUTONETWORKS TECHNOLOGIES LTD·Filed 2018·Granted Jul 20, 2021·4 cites·18 claims
- 0392US10945199B2Vehicle-mounted gateway apparatus and vehicle mounted gateway systemTOSHIBA KK·Filed 2017·Granted Mar 9, 2021·55 cites·9 claims
- 0492US10173992B2Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compoundZEON CORP·Filed 2016·Granted Jan 8, 2019·4 cites·7 claims
- 0592US9586917B2Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compoundZEON CORP·Filed 2013·Granted Mar 7, 2017·9 cites·18 claims
- 0691US9029490B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic bodySAKAMOTO KEI·Filed 2012·Granted May 12, 2015·9 cites·16 claims
- 0790US9868710B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic productZEON CORP·Filed 2014·Granted Jan 16, 2018·4 cites·19 claims
- 0890US6403289B1Developer for photosensitive polyimide resin compositionNIPPON ZEON CO·Filed 1998·Granted Jun 11, 2002·79 cites·23 claims
- 0988US9150677B2Polymerizable compounds, polymerizable composition, polymer, and optically anisotropic bodySAKAMOTO KEI·Filed 2012·Granted Oct 6, 2015·6 cites·20 claims
- 1087US9111858B2Non-volatile semiconductor memory device and method for manufacturing the sameTOSHIBA KK·Filed 2013·Granted Aug 18, 2015·6 cites·13 claims
- 1186US6995226B2Open-ring copolymer, hydrogenated open-ring copolymer, process for production of both, and compositionsZEON CORP·Filed 2002·Granted Feb 7, 2006·34 cites·17 claims
- 1285US9234056B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic bodySAKAMOTO KEI·Filed 2012·Granted Jan 12, 2016·4 cites·20 claims
- 1385US8937121B2Condensed heterocyclic compound and compositionSAKAMOTO KEI·Filed 2011·Granted Jan 20, 2015·4 cites·13 claims
- 1485US8883888B2Diarylamine compounds, aging inhibitor, polymer composition, crosslinked rubber product and molded article of the crosslinked product, and method of producing diarylamine compoundSAKAMOTO KEI·Filed 2010·Granted Nov 11, 2014·5 cites·10 claims
- 1584US9777096B2Polymerizable compound, polymerizable composition, polymer, and optical anisotropic bodyZEON CORP·Filed 2013·Granted Oct 3, 2017·7 cites·20 claims
- 1683US10647794B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic materialZEON CORP·Filed 2015·Granted May 12, 2020·2 cites·7 claims
- 1783US9447059B2Intermediate for manufacture of polymerizable compound and process for manufacture thereofSAKAMOTO KEI·Filed 2012·Granted Sep 20, 2016·3 cites·9 claims
- 1882US9776954B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic substanceZEON CORP·Filed 2013·Granted Oct 3, 2017·3 cites·20 claims
- 1982US8609753B2Acrylic rubber composition and cross-linked rubber productOGAWA TOMONORI·Filed 2011·Granted Dec 17, 2013·6 cites·13 claims
- 2081US10916359B2Electric wire conductor, covered electric wire, and wiring harnessAUTONETWORKS TECHNOLOGIES LTD·Filed 2018·Granted Feb 9, 2021·1 cites·6 claims
- 2181US9831121B2Semiconductor memory device with contact plugs extending inside contact connection portionsTOSHIBA MEMORY CORP·Filed 2016·Granted Nov 28, 2017·4 cites·10 claims
- 2280US9856333B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic materialZEON CORP·Filed 2016·Granted Jan 2, 2018·1 cites·12 claims
- 2380US8937830B2Semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted Jan 20, 2015·3 cites·19 claims
- 2478US11203716B2Compound, polymerizable compound, mixture, polymerizable liquid crystal composition, polymer, optical film, optically anisotropic product, polarizing plate, flat panel display device, organic electroluminescence display device, and anti-reflection filmZEON CORP·Filed 2019·Granted Dec 21, 2021·1 cites·5 claims
- 2578US8603357B2Polymerizable chiral compound, polymerizable liquid crystal composition, liquid crystal polymer and optically anisotropic bodySAKAMOTO KEI·Filed 2009·Granted Dec 10, 2013·2 cites·10 claims
- 2678US8454857B2Polymerizable liquid crystal compounds, polymerizable liquid crystal compositions, liquid crystalline polymers and optically anisotropic materialsSAKAMOTO KEI·Filed 2009·Granted Jun 4, 2013·5 cites·23 claims
- 2777US11091452B2Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compoundZEON CORP·Filed 2019·Granted Aug 17, 2021·0 cites·1 claims
- 2876US11551828B2Electric wire conductor, covered electric wire, and wiring harnessAUTONETWORKS TECHNOLOGIES LTD·Filed 2021·Granted Jan 10, 2023·0 cites·19 claims
- 2975US10633323B2Method of producing acid halide solution and method of producing monoester compoundZEON CORP·Filed 2017·Granted Apr 28, 2020·1 cites·15 claims
- 3075US8189818B2Electronic apparatus capable of always executing proper noise canceling regardless of display screen state, and voice input method for the apparatusTAKAHASHI TOSHIO·Filed 2004·Granted May 29, 2012·19 cites·3 claims
- 3174US10508072B2Method for producing acid halide solution, mixed solution, and method for producing monoester compoundZEON CORP·Filed 2016·Granted Dec 17, 2019·1 cites·8 claims
- 3273US10273322B2Polymerizable compound, polymerizable composition, polymer, and optical anisotropic bodyZEON CORP·Filed 2014·Granted Apr 30, 2019·1 cites·13 claims
- 3373US9911749B2Stacked 3D semiconductor memory structureTOSHIBA MEMORY CORP·Filed 2015·Granted Mar 6, 2018·2 cites·9 claims
- 3473US8158021B2Polymerizable liquid crystal compound, polymerizable liquid crystal composition, liquid crystalline polymer, and optical anisotropic articleSAKAMOTO KEI·Filed 2008·Granted Apr 17, 2012·5 cites·15 claims
- 3572US12285805B2Method for producing silver nanowires, silver nanowires, dispersion, and transparent conductive filmMICROWAVE CHEMICAL CO LTD·Filed 2021·Granted Apr 29, 2025·0 cites·6 claims
- 3671US10487065B2Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compoundZEON CORP·Filed 2018·Granted Nov 26, 2019·0 cites·1 claims
- 3771US2025042064A1Plasticizer composition, resin composition, resin molded product, and laminateZEON CORP·Filed 2022·Application pending·0 cites
- 3870US12038650B2Multilayer phase difference plate, polarizing plate, and image display deviceZEON CORP·Filed 2022·Granted Jul 16, 2024·0 cites·8 claims
- 3968US11094430B2Electric wire conductor, covered electric wire, and wiring harnessAUTONETWORKS TECHNOLOGIES LTD·Filed 2018·Granted Aug 17, 2021·0 cites·21 claims
- 4068US10954443B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic productZEON CORP·Filed 2019·Granted Mar 23, 2021·0 cites·2 claims
- 4168US10934246B2Mixture of polymerizable compound and method of producing the sameZEON CORP·Filed 2020·Granted Mar 2, 2021·0 cites·6 claims
- 4268US6270900B1Composite filmNIPPON ZEON CO·Filed 1998·Granted Aug 7, 2001·27 cites·22 claims
- 4367US2019202948A1Polymerizable compound, polymerizable composition, polymer, and optical anisotropic bodyZEON CORP·Filed 2019·Application pending·0 cites
- 4466US10730844B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic productZEON CORP·Filed 2017·Granted Aug 4, 2020·0 cites·14 claims
- 4566US10227292B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic bodyZEON CORP·Filed 2014·Granted Mar 12, 2019·1 cites·20 claims
- 4666US9153820B2Binder composition for non-aqueous battery electrode, electrolyte solution composition for non-aqueous battery, and use thereofSAKAMOTO KEI·Filed 2011·Granted Oct 6, 2015·1 cites·12 claims
- 4765US10400170B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic productZEON CORP·Filed 2015·Granted Sep 3, 2019·1 cites·18 claims
- 4864US10329247B2Polymerizable compound, polymerizable composition, polymer, and optically anisotropic substanceZEON CORP·Filed 2017·Granted Jun 25, 2019·0 cites·11 claims
- 4963US11380458B2Covered electrical wire, terminal-equipped electrical wire, copper alloy wire, and copper alloy stranded wireSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Granted Jul 5, 2022·0 cites·16 claims
- 5063US8619461B2Nonvolatile semiconductor memory deviceSAKAMOTO KEI·Filed 2012·Granted Dec 31, 2013·2 cites·20 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →