Inventor · disambiguated record
Yuka Utsumi
Also filed as: UTSUMI YUKA
50 granted patents·31 pending applications·598 citations·filing 1996–2023
98Inventor score
Top patents by PatentIndex Score
81 records- 0199US7460103B2Liquid crystal display apparatus with luminance distribution calculating, backlight controller, and video correction to improve display contrast ratioHITACHI DISPLAYS LTD·Filed 2005·Granted Dec 2, 2008·118 cites·9 claims
- 0298US7489374B2Liquid crystal displayHITACHI DISPLAYS LTD·Filed 2004·Granted Feb 10, 2009·188 cites·8 claims
- 0396US8059235B2Liquid crystal displayUTSUMI YUKA·Filed 2009·Granted Nov 15, 2011·38 cites·4 claims
- 0494US7180490B2Liquid crystal display apparatusHITACHI LTD·Filed 2005·Granted Feb 20, 2007·20 cites·4 claims
- 0594US7019799B2Liquid crystal display with optical adjustment layer controlling transmittance of emitted light in accordance with wavelengthHITACHI LTD·Filed 2005·Granted Mar 28, 2006·17 cites·14 claims
- 0693US8514351B2Liquid crystal displaySASAKI HIROSHI·Filed 2010·Granted Aug 20, 2013·10 cites·4 claims
- 0790US7911541B2Liquid crystal display deviceHITACHI DISPLAYS LTD·Filed 2006·Granted Mar 22, 2011·8 cites·28 claims
- 0888US6137560AActive matrix type liquid crystal display apparatus with light source color compensationHITACHI LTD·Filed 1996·Granted Oct 24, 2000·65 cites·9 claims
- 0987US8339356B2Liquid crystal display apparatus capable of maintaining high color purityUTSUMI YUKA·Filed 2011·Granted Dec 25, 2012·5 cites·14 claims
- 1085US6859194B2Liquid crystal display apparatusHITACHI LTD·Filed 2001·Granted Feb 22, 2005·25 cites·24 claims
- 1180US7893903B2Liquid crystal display apparatus capable of maintaining high color purityHITACHI DISPLAYS LTD·Filed 2005·Granted Feb 22, 2011·4 cites·19 claims
- 1278US9523539B2Latent heat storage member and building material provided with same, microcapsules and thermal storage material using microcapsulesSHARP KK·Filed 2013·Granted Dec 20, 2016·3 cites·10 claims
- 1378US7433012B2Active matrix type liquid crystal display apparatusHITACHI LTD·Filed 2005·Granted Oct 7, 2008·2 cites·10 claims
- 1477US10101095B2Heat storage capsule and heat storage member using the sameSHARP KK·Filed 2014·Granted Oct 16, 2018·2 cites·3 claims
- 1577US8208099B2Transmissive type liquid crystal display comprising a main pixel region having a first color filter and a sub-pixel region having a second color filter having a higher transmittanceUTSUMI YUKA·Filed 2006·Granted Jun 26, 2012·5 cites·16 claims
- 1677US7804558B2Liquid crystal displayHITACHI DISPLAYS LTD·Filed 2006·Granted Sep 28, 2010·4 cites·17 claims
- 1776US8134665B2Polarizer and liquid-crystal display apparatus having reduced polarization state in oblique viewing anglesKAJITA DAISUKE·Filed 2011·Granted Mar 13, 2012·2 cites·2 claims
- 1874US8488089B2Liquid crystal panel and liquid crystal display deviceUTSUMI YUKA·Filed 2011·Granted Jul 16, 2013·2 cites·15 claims
- 1974US8237893B2Liquid crystal display deviceUTSUMI YUKA·Filed 2010·Granted Aug 7, 2012·2 cites·10 claims
- 2070US6646699B2Liquid crystal display with band-pass filterHITACHI LTD·Filed 2001·Granted Nov 11, 2003·9 cites·19 claims
- 2168US6441880B1Normally closed liquid crystal display device using spacers coated with material having liquid crystal aligning ability by irradiation with polarized lightHITACHI LTD·Filed 1999·Granted Aug 27, 2002·29 cites·13 claims
- 2266US7920238B2Polarizer and liquid-crystal display apparatus having reduced polarization state in oblique viewing anglesHITACHI DISPLAYS LTD·Filed 2005·Granted Apr 5, 2011·4 cites·6 claims
- 2365US11884869B2Latent heat storage material, and cold storage tool, logistic packaging container, food cold storage tool and cooling method each using sameSHARP KK·Filed 2019·Granted Jan 30, 2024·0 cites·11 claims
- 2465US10823477B2Thermal energy storage member and storage container using the same, and refrigerator using the sameSHARP KK·Filed 2014·Granted Nov 3, 2020·2 cites·8 claims
- 2564US9624022B2Storage container utilizing two different heat insulating materials in combination with a temperature control unit and a heat storage material placed within the containerIDE TETSUYA·Filed 2012·Granted Apr 18, 2017·2 cites·25 claims
- 2663US10179686B2Storage container with heat storage material that provides heat to shelf included in storage containerSHARP KK·Filed 2013·Granted Jan 15, 2019·1 cites·18 claims
- 2763US2024076537A1Cold storage materialSHARP KK·Filed 2023·Application pending·0 cites
- 2862US2025177896A1Filter material, air filter, air conditioner, water filter, and water cleanerSHARP KK·Filed 2022·Application pending·0 cites
- 2961US10214672B2Heat-storage material, and heat-storage member, storage container, transportation/storage container, construction material, and architectural structure using the sameSHARP KK·Filed 2014·Granted Feb 26, 2019·0 cites·14 claims
- 3060US12371615B2Method of treating quantum dot-containing aqueous solutionSHARP KK·Filed 2021·Granted Jul 29, 2025·0 cites·11 claims
- 3160US7061456B2Image display method and image display apparatusHITACHI LTD·Filed 2001·Granted Jun 13, 2006·6 cites·12 claims
- 3258US12404436B2Latent heat storage material, cold storage tool, distribution packing container, and cold storage tool for foodSHARP KK·Filed 2021·Granted Sep 2, 2025·0 cites·8 claims
- 3358US6757044B2Liquid crystal display device with spacers controlling thickness of liquid crystal layerHITACHI LTD·Filed 2002·Granted Jun 29, 2004·5 cites·20 claims
- 3457US7684005B2Active matrix type liquid crystal display apparatusHITACHI LTD·Filed 2008·Granted Mar 23, 2010·0 cites·3 claims
- 3556US9841219B2Storage containerSHARP KK·Filed 2013·Granted Dec 12, 2017·1 cites·4 claims
- 3656US6621538B1Active matrix type liquid crystal display apparatus including liquid crystal layer having different thicknesses at portions where different colors of light are transmittedHITACHI LTD·Filed 2000·Granted Sep 16, 2003·3 cites·8 claims
- 3754US9964351B2Cooling equipment, temperature control system, air conditioning system, and hot water supply system for the sameYAMASHITA TAKASHI·Filed 2012·Granted May 8, 2018·0 cites·12 claims
- 3854US7209211B2Active matrix type liquid crystal display apparatusHITACHI LTD·Filed 2003·Granted Apr 24, 2007·2 cites·30 claims
- 3953US2011102412A1Liquid Crystal Display DeviceYAMAMOTO TSUNENORI·Filed 2011·Application pending·0 cites
- 4052US8259262B2Liquid crystal display apparatus having particular polarizersUTSUMI YUKA·Filed 2009·Granted Sep 4, 2012·0 cites·5 claims
- 4152US2018087830A1Cooling equipment, temperature control system, air conditioning system, and hot water supply system for the sameSHARP KK·Filed 2017·Application pending·0 cites
- 4251US9701927B2Cleaning solution, cleaning tool, and cleaning kitSHARP KK·Filed 2014·Granted Jul 11, 2017·0 cites·11 claims
- 4351US6850293B2Liquid crystal display with absorber having absorption and permeability characteristicsHITACHI LTD·Filed 2003·Granted Feb 1, 2005·2 cites·5 claims
- 4450US7898638B2Liquid-crystal display deviceHITACHI DISPLAYS LTD·Filed 2008·Granted Mar 1, 2011·0 cites·10 claims
- 4550US2006125765A1Image display method and image display apparatusHIYAMA IKUO·Filed 2006·Application pending·0 cites
- 4648US11884868B2Latent heat storage material, and cold storage tool, logistic packaging container, transportation method, human body refrigeration tool and cold storage tool for beverages each using sameSHARP KK·Filed 2019·Granted Jan 30, 2024·0 cites·20 claims
- 4748US2021247122A1Cold storage pack and packaging container, and method of transporting object at low temperatureSHARP KK·Filed 2019·Application pending·0 cites
- 4847US11130896B2Heat-storage material and refrigerator and cooling container that include the heat-storage materialSHARP KK·Filed 2016·Granted Sep 28, 2021·0 cites·5 claims
- 4947US10919683B2Thermal energy storage pack, thermal exchange unit, and manufacturing method of thermal energy storage packSHARP KK·Filed 2016·Granted Feb 16, 2021·0 cites·19 claims
- 5047US9091474B2Storage containerIDE TETSUYA·Filed 2011·Granted Jul 28, 2015·0 cites·19 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yuka Utsumi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →