Inventor · disambiguated record
Hiroshi Kageyama
Also filed as: KAGEYAMA HIROSHI
102 granted patents·26 pending applications·1,078 citations·filing 1979–2023
99Inventor score
Top patents by PatentIndex Score
128 records- 0197US10017395B2Ammonia synthesis catalyst and ammonia synthesis methodJAPAN SCIENCE & TECH AGENCY·Filed 2015·Granted Jul 10, 2018·24 cites·12 claims
- 0297US7142180B2Image displayHITACHI LTD·Filed 2005·Granted Nov 28, 2006·34 cites·10 claims
- 0397US6876345B2Image displayHITACHI LTD·Filed 2002·Granted Apr 5, 2005·92 cites·21 claims
- 0496US8031144B2Image displayHITACHI LTD·Filed 2007·Granted Oct 4, 2011·22 cites·2 claims
- 0595US8159427B2Image displayAKIMOTO HAJIME·Filed 2011·Granted Apr 17, 2012·12 cites·7 claims
- 0694US8633878B2Image displayAKIMOTO HAJIME·Filed 2012·Granted Jan 21, 2014·12 cites·16 claims
- 0793US8242698B2Organic electroluminescent display deviceTOKUDA NAOKI·Filed 2007·Granted Aug 14, 2012·9 cites·4 claims
- 0893US7379044B2Image display apparatusHITACHI LTD·Filed 2007·Granted May 27, 2008·12 cites·12 claims
- 0992US7277072B2Image displayHITACHI LTD·Filed 2004·Granted Oct 2, 2007·33 cites·22 claims
- 1092US6727875B1High-definition liquid crystal display including sub scan circuit which separately controls plural pixels connected to the same main scan wiring line and the same sub scan wiring lineHITACHI LTD·Filed 2000·Granted Apr 27, 2004·49 cites·2 claims
- 1189US8380124B2Communication system by electrostatic coupling and electromagnetic inductionHITACHI DISPLAYS LTD·Filed 2009·Granted Feb 19, 2013·15 cites·14 claims
- 1288US5121165ADeveloper unit and a toner hopper for an image forming deviceMITA INDUSTRIAL CO LTD·Filed 1989·Granted Jun 9, 1992·36 cites·9 claims
- 1387US10769997B2Organic electroluminescent display deviceSAMSUNG DISPLAY CO LTD·Filed 2019·Granted Sep 8, 2020·1 cites·19 claims
- 1487US8446343B2Image display apparatusAKIMOTO HAJIME·Filed 2005·Granted May 21, 2013·8 cites·6 claims
- 1586US7236422B2Image display device and the driver circuit thereofHITACHI DISPLAYS LTD·Filed 2005·Granted Jun 26, 2007·7 cites·10 claims
- 1686US6825826B1Liquid crystal display apparatusHITACHI LTD·Filed 2000·Granted Nov 30, 2004·33 cites·9 claims
- 1786US6392625B1Liquid crystal display apparatus having level conversion circuitHITACHI LTD·Filed 1999·Granted May 21, 2002·36 cites·30 claims
- 1885US11468836B2Organic electroluminescent display deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Oct 11, 2022·1 cites·10 claims
- 1985US6522317B1Liquid-crystal display apparatus incorporating drive circuit in single integrated assemblyHITACHI LTD·Filed 2000·Granted Feb 18, 2003·30 cites·3 claims
- 2084US9440228B2Perovskite oxide containing hydride ion, and method for manufacturing sameHOSONO HIDEO·Filed 2012·Granted Sep 13, 2016·4 cites·6 claims
- 2184US7652647B2Image display deviceHITACHI DISPLAYS LTD·Filed 2005·Granted Jan 26, 2010·11 cites·3 claims
- 2284US5023748ACorona wire cleaning device for a corona unitMITA INDUSTRIAL CO LTD·Filed 1989·Granted Jun 11, 1991·28 cites·8 claims
- 2383US8207918B2Image display device having a set period during which a step signal is supplied at different levels to provide a uniform displayKOHNO TOHRU·Filed 2009·Granted Jun 26, 2012·6 cites·13 claims
- 2482US7948461B2Image display deviceHITACHI DISPLAYS LTD·Filed 2007·Granted May 24, 2011·5 cites·7 claims
- 2581US7932881B2Image display device and driver circuit thereforHITACHI DISPLAYS LTD·Filed 2006·Granted Apr 26, 2011·5 cites·8 claims
- 2680US12300169B2Organic electroluminescent display deviceSAMSUNG DISPLAY CO LTD·Filed 2022·Granted May 13, 2025·0 cites·19 claims
- 2780US8013827B2Image display deviceHITACHI DISPLAYS LTD·Filed 2007·Granted Sep 6, 2011·4 cites·10 claims
- 2880US7221343B2Image display apparatusHITACHI LTD·Filed 2003·Granted May 22, 2007·18 cites·15 claims
- 2980US7012586B2Image display deviceHITACHI DISPLAYS LTD·Filed 2004·Granted Mar 14, 2006·20 cites·16 claims
- 3079US9489890B2Organic electroluminescent display deviceJAPAN DISPLAY INC·Filed 2015·Granted Nov 8, 2016·1 cites·3 claims
- 3179US9189993B2Organic electroluminescent display deviceJAPAN DISPLAY INC·Filed 2014·Granted Nov 17, 2015·1 cites·2 claims
- 3279US8368311B2Organic electroluminescent display deviceHITACHI DISPLAYS LTD·Filed 2012·Granted Feb 5, 2013·1 cites·4 claims
- 3379US6919873B2Liquid crystal display apparatus having level conversion circuitHITACHI LTD·Filed 2004·Granted Jul 19, 2005·11 cites·7 claims
- 3478US10058041B2Plant cultivation apparatusPANASONIC IP MAN CO LTD·Filed 2016·Granted Aug 28, 2018·3 cites·7 claims
- 3578US8773025B2Organic electroluminescent display deviceTOKUDA NAOKI·Filed 2013·Granted Jul 8, 2014·1 cites·4 claims
- 3678US8624507B2Organic electroluminescent display deviceTOKUDA NAOKI·Filed 2013·Granted Jan 7, 2014·1 cites·2 claims
- 3778US4891875AMethod for manufacturing a piston for an internal combustion engineAISIN SEIKI·Filed 1988·Granted Jan 9, 1990·19 cites·10 claims
- 3877US10410580B2Organic electroluminescent display deviceSAMSUNG DISPLAY CO LTD·Filed 2016·Granted Sep 10, 2019·1 cites·19 claims
- 3977US6166786ASemiconductor element with N channel and P region connected only to the channel and liquid crystal display device using the sameHITACHI LTD·Filed 1998·Granted Dec 26, 2000·30 cites·15 claims
- 4075US8760409B2Image display unit with screen input functionKINOSHITA MASAYOSHI·Filed 2007·Granted Jun 24, 2014·7 cites·13 claims
- 4175US5561512AFixation control deviceMITA INDUSTRIAL CO LTD·Filed 1995·Granted Oct 1, 1996·29 cites·9 claims
- 4273US6942465B2CompressorCALSONIC KANSEI CORP·Filed 2003·Granted Sep 13, 2005·15 cites·13 claims
- 4373US4659929ARadiographic system including a transport system having two independent portions for serial continuous transporting of image platesTOSHIBA KK·Filed 1985·Granted Apr 21, 1987·14 cites·2 claims
- 4472US7724246B2Image display deviceHITACHI DISPLAYS LTD·Filed 2006·Granted May 25, 2010·2 cites·18 claims
- 4572US7145532B2Image display apparatusHITACHI LTD·Filed 2003·Granted Dec 5, 2006·13 cites·4 claims
- 4671US2025357479A1Alkali metal-containing oxide, positive electrode active substance, electrode, and batterySUMITOMO CHEMICAL CO·Filed 2023·Application pending·0 cites
- 4770US5195478APiston for an internal combustion engineAISIN SEIKI·Filed 1991·Granted Mar 23, 1993·27 cites·17 claims
- 4870US5054375APiston for internal combustion engineAISIN SEIKI·Filed 1990·Granted Oct 8, 1991·30 cites·4 claims
- 4969US8416202B2Display device having touch panelAKIMOTO HAJIME·Filed 2009·Granted Apr 9, 2013·4 cites·8 claims
- 5069US6433768B1Liquid crystal display device having a gray-scale voltage producing circuitHITACHI LTD·Filed 1999·Granted Aug 13, 2002·27 cites·21 claims
Showing the top 50 of 128 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hiroshi Kageyama 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 →