Inventor · disambiguated record
Ken Sumiyoshi
Also filed as: SUMIYOSHI KEN
114 granted patents·22 pending applications·1,180 citations·filing 1991–2024
99Inventor score
Top patents by PatentIndex Score
136 records- 0197US6504592B1Liquid crystal display and method of manufacturing the same and method of driving the sameNEC CORP·Filed 2000·Granted Jan 7, 2003·90 cites·47 claims
- 0296US7349043B2Light source, display device, portable terminal device, and ray direction switching elementNEC CORP·Filed 2005·Granted Mar 25, 2008·22 cites·2 claims
- 0395US7525732B2Method for forming finely-structured parts, finely-structured parts formed thereby, and product using such finely-structured partNEC CORP·Filed 2007·Granted Apr 28, 2009·23 cites·6 claims
- 0494US6812986B2Liquid crystal display and method of manufacturing the same and method of driving the sameNEC CORP·Filed 2002·Granted Nov 2, 2004·48 cites·25 claims
- 0593US8233114B2Method for manufacturing optical elementMIMURA KOJI·Filed 2011·Granted Jul 31, 2012·10 cites·18 claims
- 0693US7973749B2Display device, terminal device, and display panelNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Jul 5, 2011·19 cites·15 claims
- 0793US7705937B2Transflective liquid crystal display deviceNEC LCD TECHNOLOGIES LTD·Filed 2006·Granted Apr 27, 2010·12 cites·5 claims
- 0892US11798966B2Light ray direction control element, manufacturing method for light ray direction control element, and imaging elementTIANMA JAPAN LTD·Filed 2020·Granted Oct 24, 2023·2 cites·12 claims
- 0992US9134580B2Lateral electric field liquid crystal display device and manufacturing method thereofNLT TECHNOLOGIES LTD·Filed 2014·Granted Sep 15, 2015·6 cites·8 claims
- 1091US7817361B2Beam direction control element and method of manufacturing sameNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Oct 19, 2010·23 cites·5 claims
- 1191US7652648B2Liquid crystal display apparatus and method of driving the sameNEC CORP·Filed 2005·Granted Jan 26, 2010·10 cites·15 claims
- 1291US7369725B2Light source device and method for manufacturing the same, display device and method for manufacturing the same, and method for driving display deviceNEC CORP·Filed 2006·Granted May 6, 2008·21 cites·45 claims
- 1391US5781262ALiquid crystal display cellNEC CORP·Filed 1995·Granted Jul 14, 1998·102 cites·42 claims
- 1489US7630026B2Planar light source, display device, portable terminal device, and ray direction switching elementNEC CORP·Filed 2008·Granted Dec 8, 2009·7 cites·18 claims
- 1589US5777700ALiquid crystal display with improved viewing angle dependenceNEC CORP·Filed 1996·Granted Jul 7, 1998·110 cites·10 claims
- 1688US8026880B2Optical element, and illuminating optical device, display device and electronic device using the sameNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Sep 27, 2011·10 cites·25 claims
- 1788US7212270B2Liquid crystal display and method of manufacturing the same and method of driving the sameNEC CORP·Filed 2004·Granted May 1, 2007·23 cites·11 claims
- 1887US11086185B2Light beam direction control element, display device, and manufacturing method for light beam direction control elementTIANMA JAPAN LTD·Filed 2018·Granted Aug 10, 2021·2 cites·2 claims
- 1987US9244546B2Image display device, electronic apparatus using the same, display output control method for image display device, and output control program thereofMIMURA KOJI·Filed 2011·Granted Jan 26, 2016·5 cites·5 claims
- 2087US7728925B2Light source, display device, portable terminal device, and ray direction switching elementNEC CORP·Filed 2009·Granted Jun 1, 2010·6 cites·15 claims
- 2186US7961276B2Circular polarizer, liquid crystal display device, and terminal deviceNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Jun 14, 2011·8 cites·23 claims
- 2285US8937700B2Lateral electric field liquid crystal display device and manufacturing method thereofNLT TECHNOLOGIES LTD·Filed 2012·Granted Jan 20, 2015·3 cites·8 claims
- 2385US8848139B2Optical member, light source apparatus, display apparatus, and terminal apparatusNEC CORP·Filed 2013·Granted Sep 30, 2014·5 cites·11 claims
- 2485US8525754B2Display device with lens array or parallax barrier that switches between narrow view mode and wide view modeSUMIYOSHI KEN·Filed 2007·Granted Sep 3, 2013·7 cites·17 claims
- 2585US8477267B2Light-condensing film, liquid-crystal panel and backlight as well as manufacturing process for light-condensing filmFUJISAWA KATSUYA·Filed 2010·Granted Jul 2, 2013·7 cites·2 claims
- 2685US7852435B2Light-condensing film, liquid-crystal panel and backlight as well as manufacturing process for light-condensing filmKURARAY CO·Filed 2004·Granted Dec 14, 2010·27 cites·28 claims
- 2784US7612848B2Liquid crystal display and method of manufacturing the same and method of driving the sameNEC CORP·Filed 2007·Granted Nov 3, 2009·5 cites·28 claims
- 2884US6323922B1Liquid crystal display cellNEC CORP·Filed 2000·Granted Nov 27, 2001·23 cites·4 claims
- 2984US5796456ALiquid crystal display with optical negative uni-axial compensation layerNEC CORP·Filed 1996·Granted Aug 18, 1998·74 cites·13 claims
- 3083US8368861B2Liquid crystal display device comprising periodically changed permutations of at least two types of electrode-pattern pairsNLT TECHNOLOGIES LTD·Filed 2008·Granted Feb 5, 2013·6 cites·8 claims
- 3183US5504604ALiquid crystal display elements with opposite twist domains aligned in the same direction on one substrateNEC CORP·Filed 1994·Granted Apr 2, 1996·64 cites·14 claims
- 3282US10171798B2Liquid crystal lenticular lens element, driving method therefor, stereoscopic display device, and terminal deviceNLT TECHNOLOGIES LTD·Filed 2015·Granted Jan 1, 2019·4 cites·12 claims
- 3382US8382299B2Beam direction control element and method of manufacturing sameNLT TECHNOLOGIES LTD·Filed 2010·Granted Feb 26, 2013·5 cites·8 claims
- 3482US7821599B2Image displayNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Oct 26, 2010·5 cites·17 claims
- 3582US7499123B2Planar light source, display device, portable terminal device, and ray direction switching elementNEC CORP·Filed 2007·Granted Mar 3, 2009·4 cites·22 claims
- 3681US11525782B2Fluorescent image analyzerTIANMA JAPAN LTD·Filed 2020·Granted Dec 13, 2022·1 cites·20 claims
- 3781US7916241B2Method for manufacturing optical elementNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Mar 29, 2011·5 cites·7 claims
- 3881US7643100B2Method for forming finely-structured parts, finely-structured parts formed thereby, and product using such finely-structured partNEC CORP·Filed 2007·Granted Jan 5, 2010·5 cites·10 claims
- 3980US8780300B2Optical member, light source apparatus, display apparatus, and terminal apparatusNIIOKA SHINYA·Filed 2006·Granted Jul 15, 2014·8 cites·12 claims
- 4080US8488087B2Liquid crystal display deviceMORI KENICHI·Filed 2008·Granted Jul 16, 2013·5 cites·15 claims
- 4180US5710611ALiquid crystal display apparatus preventing image on screen from influences of disclination lineNEC CORP·Filed 1995·Granted Jan 20, 1998·66 cites·6 claims
- 4279US8134663B2Liquid crystal panel, liquid crystal display device and terminal deviceUEHARA SHINICHI·Filed 2007·Granted Mar 13, 2012·4 cites·19 claims
- 4378US11281066B2Light distribution control device and electronic deviceTIANMA JAPAN LTD·Filed 2019·Granted Mar 22, 2022·1 cites·12 claims
- 4478US8836621B2Liquid crystal display apparatus, driving method for same, and driving circuit for sameTAKATORI KENICHI·Filed 2005·Granted Sep 16, 2014·3 cites·56 claims
- 4577US7678454B2Method for forming finely-structured parts, finely-structured parts formed thereby, and product using such finely-structured partNEC CORP·Filed 2007·Granted Mar 16, 2010·3 cites·3 claims
- 4677US7161573B1Liquid crystal display unit and method for driving the sameNEC CORP·Filed 1999·Granted Jan 9, 2007·40 cites·13 claims
- 4775US8269919B2Optical element, and lighting device, display device and electronic device that use the optical elementMIMURA KOJI·Filed 2011·Granted Sep 18, 2012·3 cites·9 claims
- 4875US7982820B2Liquid crystal display with narrow angular range of incident light and method of making the displayNEC LCD TECHNOLOGIES LTD·Filed 2005·Granted Jul 19, 2011·3 cites·7 claims
- 4975US6768530B2Orientation division type liquid crystal display, fabrication method thereof and image display methodNEC CORP·Filed 2000·Granted Jul 27, 2004·14 cites·6 claims
- 5074US8773623B2Transflective liquid crystal display device including transmissive and reflective areas in each pixelNLT TECHNOLOGIES LTD·Filed 2013·Granted Jul 8, 2014·1 cites·6 claims
Showing the top 50 of 136 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →