Inventor · disambiguated record
Yoshifumi Sekiguchi
Also filed as: SEKIGUCHI YOSHIFUMI
36 granted patents·8 pending applications·220 citations·filing 2003–2023
97Inventor score
Files withHITACHI DISPLAYS LTD10HITACHI HIGH TECH CORP10HITACHI LTD8SEKIGUCHI YOSHIFUMI7JAPAN DISPLAY INC5
Top patents by PatentIndex Score
44 records- 0198US11347100B2Color display deviceJAPAN DISPLAY INC·Filed 2021·Granted May 31, 2022·4 cites·4 claims
- 0297US10551664B2Color display, liquid crystal display, and semi-transmissive liquid crystal displayJAPAN DISPLAY INC·Filed 2017·Granted Feb 4, 2020·8 cites·12 claims
- 0397US7661844B2Illuminating device and liquid-crystal display device using the sameHITACHI DISPLAYS LTD·Filed 2006·Granted Feb 16, 2010·46 cites·12 claims
- 0496US11650450B2Color display deviceJAPAN DISPLAY INC·Filed 2022·Granted May 16, 2023·2 cites·5 claims
- 0594US11694873B2Charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2022·Granted Jul 4, 2023·2 cites·8 claims
- 0694US10935834B2Color display deviceJAPAN DISPLAY INC·Filed 2019·Granted Mar 2, 2021·3 cites·8 claims
- 0793US8004545B2Display apparatus with arrangement to decrease quantity of backlight and increase transmittance of the display panelHITACHI DISPLAYS LTD·Filed 2007·Granted Aug 23, 2011·15 cites·10 claims
- 0892US7982709B2Illuminating device and liquid-crystal display device using the sameHITACHI DISPLAYS LTD·Filed 2010·Granted Jul 19, 2011·12 cites·33 claims
- 0991US8891044B2Color display, liquid crystal display, and semi-transmissive liquid crystal displayHIROTA SHOICHI·Filed 2007·Granted Nov 18, 2014·12 cites·11 claims
- 1091US8659718B2Liquid crystal display deviceSEKIGUCHI YOSHIFUMI·Filed 2011·Granted Feb 25, 2014·10 cites·5 claims
- 1191US8089582B2Liquid crystal display device comprising at least one groove having an end portion that stops short of the non-adjacent opposite side surfaces and extends in a direction perpendicular to the non-adjacent side surfacesSEKIGUCHI YOSHIFUMI·Filed 2008·Granted Jan 3, 2012·31 cites·18 claims
- 1288US10641607B2Height detection apparatus and charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2019·Granted May 5, 2020·5 cites·12 claims
- 1387US7508370B2Liquid-crystal display device and method of driving liquid-crystal display deviceHITACHI DISPLAYS LTD·Filed 2005·Granted Mar 24, 2009·8 cites·24 claims
- 1485US11515120B2Charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2018·Granted Nov 29, 2022·4 cites·13 claims
- 1584US9626918B2Color display, liquid crystal display, and semi-transmissive liquid crystal displayJAPAN DISPLAY INC·Filed 2014·Granted Apr 18, 2017·2 cites·8 claims
- 1682US7905616B2Illumination unit and display unit incorporating the sameHITACHI LTD·Filed 2008·Granted Mar 15, 2011·7 cites·22 claims
- 1780US8384845B2Liquid crystal display device and illuminating deviceHITACHI DISPLAYS LTD·Filed 2011·Granted Feb 26, 2013·3 cites·25 claims
- 1880US8194203B2Liquid crystal display deviceSEKIGUCHI YOSHIFUMI·Filed 2009·Granted Jun 5, 2012·6 cites·25 claims
- 1979US8054407B2Liquid crystal display devicePANASONIC LIQUID CRYSTAL DISPL·Filed 2008·Granted Nov 8, 2011·9 cites·8 claims
- 2079US7824049B2Illumination device and display device incorporating the sameHITACHI DISPLAYS LTD·Filed 2007·Granted Nov 2, 2010·8 cites·16 claims
- 2173US10593512B2Light guide, detector having light guide, and charged particle beam deviceHITACHI HIGH TECH CORP·Filed 2017·Granted Mar 17, 2020·1 cites·9 claims
- 2273US7944526B2Liquid crystal display device with a backlight unit having a diffusion plateHITACHI DISPLAYS LTD·Filed 2010·Granted May 17, 2011·2 cites·7 claims
- 2371US8421957B2Illuminating device and liquid-crystal display device using the sameSEKIGUCHI YOSHIFUMI·Filed 2011·Granted Apr 16, 2013·2 cites·14 claims
- 2469US7705930B2Liquid crystal display device with a backlight unit having a diffusion plateHITACHI DISPLAYS LTD·Filed 2007·Granted Apr 27, 2010·3 cites·11 claims
- 2569US7477223B2Liquid-crystal display device and method of driving liquid-crystal display deviceHITACHI LTD·Filed 2003·Granted Jan 13, 2009·13 cites·32 claims
- 2667US10679821B1Light guide, detector having light guide, and charged particle beam deviceHITACHI HIGH TECH CORP·Filed 2020·Granted Jun 9, 2020·0 cites·9 claims
- 2764US8164712B2Liquid crystal display deviceSEKIGUCHI YOSHIFUMI·Filed 2008·Granted Apr 24, 2012·2 cites·14 claims
- 2861US12072454B2Scintillator, measuring device, mass spectrometer, and electron microscopeHITACHI HIGH TECH CORP·Filed 2020·Granted Aug 27, 2024·0 cites·12 claims
- 2958US2010090220A1Thin film transistor and semiconductor device using the sameHITACHI LTD·Filed 2009·Application pending·0 cites
- 3055US2025157785A1Charged particle beam device adjustment method and charged particle beam deviceHITACHI HIGH TECH CORP·Filed 2023·Application pending·0 cites
- 3152US11906420B2Light source and biochemical analyzerHITACHI HIGH TECH CORP·Filed 2020·Granted Feb 20, 2024·0 cites·17 claims
- 3250US12385861B2Charged particle detector, charged particle ray device, radiation detector, and radiation detection deviceHITACHI HIGH TECH CORP·Filed 2020·Granted Aug 12, 2025·0 cites·16 claims
- 3350US2010165249A1Liquid crystal display device with a backlight unit having a diffusion plateHITACHI DISPLAYS LTD·Filed 2010·Application pending·0 cites
- 3449US7990491B2Liquid crystal display deviceHITACHI DISPLAYS LTD·Filed 2008·Granted Aug 2, 2011·0 cites·23 claims
- 3549US2005211975A1Thin film transistor and semiconductor device using the sameHITACHI LTD·Filed 2005·Application pending·0 cites
- 3648US10566503B2Multilayer glassHITACHI LTD·Filed 2016·Granted Feb 18, 2020·0 cites·14 claims
- 3748US7855760B2Liquid crystal display apparatusHITACHI LTD·Filed 2008·Granted Dec 21, 2010·0 cites·7 claims
- 3847US11398055B2Color evaluation device, color evaluation method, and indication object used in color evaluation methodHITACHI LTD·Filed 2019·Granted Jul 26, 2022·0 cites·10 claims
- 3946US2006125742A1Liquid-crystal display device and method of driving liquid-crystal display deviceSEKIGUCHI YOSHIFUMI·Filed 2005·Application pending·0 cites
- 4045US2004207568A1Portable information processing apparatus and method for displaying imageHITACHI LTD·Filed 2004·Application pending·0 cites
- 4145US2009096955A1Liquid Crystal Display Appliance and Lighting SystemKONNO AKITOYO·Filed 2008·Application pending·0 cites
- 4244US2009167990A1Liquid Crystal Display ApplianceKONNO AKITOYO·Filed 2008·Application pending·0 cites
- 4341US12339407B2Device for detecting charged particles or radiationHITACHI HIGH TECH CORP·Filed 2020·Granted Jun 24, 2025·0 cites·19 claims
- 4441US8780298B2Liquid crystal display deviceSEKIGUCHI YOSHIFUMI·Filed 2011·Granted Jul 15, 2014·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →