Inventor · disambiguated record
Eiji Okamoto
Also filed as: OKAMOTO EIJI
104 granted patents·40 pending applications·1,475 citations·filing 1980–2025
99Inventor score
Top patents by PatentIndex Score
144 records- 0198US9579852B2Method for manufacturing three-dimensional shaped objectSEIKO EPSON CORP·Filed 2015·Granted Feb 28, 2017·34 cites·10 claims
- 0296US9469771B2Ultraviolet ray-curable clear ink composition and recording methodSEIKO EPSON CORP·Filed 2013·Granted Oct 18, 2016·13 cites·20 claims
- 0396US9463614B2Three-dimensional shaped article manufacturing methodSEIKO EPSON CORP·Filed 2014·Granted Oct 11, 2016·9 cites·11 claims
- 0496US9393740B2Method of producing three-dimensional structure, apparatus for producing three-dimensional structure, and three-dimensional structureSEIKO EPSON CORP·Filed 2015·Granted Jul 19, 2016·18 cites·16 claims
- 0596US7251008B2Liquid crystal device, projection type display and electronic equipmentSEIKO EPSON CORP·Filed 2005·Granted Jul 31, 2007·22 cites·6 claims
- 0695US9481162B2Three-dimensional shaped article manufacturing methodSEIKO EPSON CORP·Filed 2014·Granted Nov 1, 2016·10 cites·10 claims
- 0795US6608660B1Liquid crystal display device including shading film with opening and reflector with opening in the opening in the shading filmSEIKO EPSON CORP·Filed 2000·Granted Aug 19, 2003·72 cites·29 claims
- 0895US4658292AEnciphering key distribution system for subscription TV broadcast or catv systemNEC CORP·Filed 1983·Granted Apr 14, 1987·122 cites·10 claims
- 0994US10894289B2Manufacturing method for three-dimensional structure and manufacturing apparatus thereforSEIKO EPSON CORP·Filed 2016·Granted Jan 19, 2021·5 cites·17 claims
- 1092US10730235B2Paste and method for producing three-dimensional shaped articleSEIKO EPSON CORP·Filed 2018·Granted Aug 4, 2020·4 cites·6 claims
- 1192US6784966B2Liquid crystal device, projection type display and electronic equipmentSEIKO EPSON CORP·Filed 2002·Granted Aug 31, 2004·32 cites·4 claims
- 1291US6147728AReflective color LCD with color filters having particular transmissivitySEIKO EPSON CORP·Filed 1996·Granted Nov 14, 2000·122 cites·43 claims
- 1390US9676144B2Three-dimensional structure manufacturing apparatus, method of manufacturing three-dimensional structure, and three-dimensional structureSEIKO EPSON CORP·Filed 2015·Granted Jun 13, 2017·5 cites·6 claims
- 1490US7411646B2Liquid crystal device, projection type display and electronic equipmentSEIKO EPSON CORP·Filed 2007·Granted Aug 12, 2008·8 cites·8 claims
- 1589US11565314B2Three-dimensional shaped article production methodSEIKO EPSON CORP·Filed 2020·Granted Jan 31, 2023·1 cites·12 claims
- 1689US10814389B2Three-dimensional shaped article production methodSEIKO EPSON CORP·Filed 2017·Granted Oct 27, 2020·2 cites·8 claims
- 1789US7286194B2Reflective type color liquid crystal device and an electronic apparatus using thisSEIKO EPSON CORP·Filed 2007·Granted Oct 23, 2007·7 cites·3 claims
- 1888US6118874AEncrypted data recovery method using split storage key and system thereofHITACHI LTD·Filed 1998·Granted Sep 12, 2000·255 cites·22 claims
- 1988US5535614AThermal conductivity gas sensor for measuring fuel vapor contentNOK CORP·Filed 1994·Granted Jul 16, 1996·41 cites·5 claims
- 2087US7609352B2Liquid crystal device, projection type display and electronic equipmentSEIKO EPSON CORP·Filed 2008·Granted Oct 27, 2009·6 cites·4 claims
- 2186US11440248B2Three-dimensional shaped object manufacturing deviceSEIKO EPSON CORP·Filed 2020·Granted Sep 13, 2022·1 cites·8 claims
- 2285US7196760B2Liquid crystal device, projection type display and electronic equipmentSEIKO EPSON CORP·Filed 2004·Granted Mar 27, 2007·18 cites·11 claims
- 2384US11878460B2Three-dimensional shaped article production methodSEIKO EPSON CORP·Filed 2022·Granted Jan 23, 2024·0 cites·13 claims
- 2484US11534826B2Method for producing metal shaped article having porous structureSEIKO EPSON CORP·Filed 2020·Granted Dec 27, 2022·2 cites·8 claims
- 2584US10220570B2Method for manufacturing three-dimensional structure, three-dimensional structure manufacturing apparatus, ink set, and three-dimensional structureSEIKO EPSON CORP·Filed 2015·Granted Mar 5, 2019·3 cites·12 claims
- 2684US9827715B2Three-dimensional formation apparatus, three-dimensional formation method, and computer programSEIKO EPSON CORP·Filed 2015·Granted Nov 28, 2017·2 cites·8 claims
- 2784US8425816B2Shaping slurry and shaping methodOKAMOTO EIJI·Filed 2011·Granted Apr 23, 2013·19 cites·4 claims
- 2884US4876716AKey distribution methodNEC CORP·Filed 1987·Granted Oct 24, 1989·74 cites·12 claims
- 2983US7304701B2Reflective type color liquid crystal device and an electronic apparatus using thisSEIKO EPSON CORP·Filed 2006·Granted Dec 4, 2007·7 cites·7 claims
- 3083US6707519B1Three state transflective liquid crystal displaySEIKO EPSON CORP·Filed 1999·Granted Mar 16, 2004·69 cites·26 claims
- 3183US6611305B2Liquid crystal display device and electronic apparatusSEIKO EPSON CORP·Filed 2001·Granted Aug 26, 2003·25 cites·9 claims
- 3281US9956726B2Apparatus for producing three-dimensional structure, method of producing three-dimensional structure, and three-dimensional structureSEIKO EPSON CORP·Filed 2015·Granted May 1, 2018·2 cites·20 claims
- 3381US6680765B1Liquid crystal device and electronic apparatusSEIKO EPSON CORP·Filed 1999·Granted Jan 20, 2004·46 cites·33 claims
- 3480US9597838B2Three-dimensional structure manufacturing apparatus, manufacturing method of three-dimensional structure, and three-dimensional structureSEIKO EPSON CORP·Filed 2015·Granted Mar 21, 2017·2 cites·9 claims
- 3580US7289174B1Reflective type color liquid crystal device and an electronic apparatus using thisSEIKO EPSON CORP·Filed 2000·Granted Oct 30, 2007·12 cites·41 claims
- 3680US6628357B1Liquid crystal device and electronic deviceSEIKO EPSON CORP·Filed 1999·Granted Sep 30, 2003·44 cites·17 claims
- 3778US8434518B2Control valveOKAMOTO EIJI·Filed 2008·Granted May 7, 2013·9 cites·6 claims
- 3878US7995163B2Reflective type color liquid crystal device and an electronic apparatus using thisSEIKO EPSON CORP·Filed 2010·Granted Aug 9, 2011·1 cites·6 claims
- 3977US11707885B2Three-dimensional shaped object manufacturing deviceSEIKO EPSON CORP·Filed 2022·Granted Jul 25, 2023·0 cites·4 claims
- 4077US7190737B2Multi-mode block-coded modulation/demodulation methodNAT INST INF & COMM TECH·Filed 2002·Granted Mar 13, 2007·23 cites·5 claims
- 4177US7092055B2Liquid crystal device and electronic apparatusSEIKO EPSON CORP·Filed 2003·Granted Aug 15, 2006·12 cites·18 claims
- 4276US7834958B2Reflective type color liquid crystal device and an electronic apparatus using thisSEIKO EPSON CORP·Filed 2007·Granted Nov 16, 2010·2 cites·20 claims
- 4375US6633353B1Color filter substrate and manufacturing process therefor, liquid crystal device and manufacturing process therefor, and electronic apparatusSEIKO EPSON CORP·Filed 1999·Granted Oct 14, 2003·35 cites·14 claims
- 4475US4796297ADevice for calculating a charge for a charged information signal with errors avoided in a report of the chargeNEC CORP·Filed 1984·Granted Jan 3, 1989·21 cites·11 claims
- 4574US8413685B2Control valveOKAMOTO EIJI·Filed 2008·Granted Apr 9, 2013·7 cites·2 claims
- 4673US8931517B2Solenoid valveOKAMOTO EIJI·Filed 2011·Granted Jan 13, 2015·4 cites·2 claims
- 4772US11911962B2Three-dimensionally shaped article production apparatus with a porous stage and support bodySEIKO EPSON CORP·Filed 2021·Granted Feb 27, 2024·0 cites·13 claims
- 4872US11717984B2Manufacturing method for three-dimensional structure and manufacturing apparatus thereforSEIKO EPSON CORP·Filed 2020·Granted Aug 8, 2023·0 cites·17 claims
- 4972US7535529B2Liquid crystal device and electronic device having liquid crystal molecules aligned at reflective electrodesSEIKO EPSON CORP·Filed 2007·Granted May 19, 2009·2 cites·2 claims
- 5072US7209197B2Reflective color LCD with color filters having particular transmissivitySEIKO EPSON CORP·Filed 2004·Granted Apr 24, 2007·7 cites·15 claims
Showing the top 50 of 144 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →