Inventor · disambiguated record
Kouki Yamamoto
Also filed as: YAMAMOTO KOUKI
38 granted patents·6 pending applications·823 citations·filing 1998–2025
98Inventor score
Files withNEC CORP11HITACHI LTD9NUVOTON TECHNOLOGY CORP JAPAN8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3PANASONIC CORP3
Top patents by PatentIndex Score
44 records- 0197US6525442B2Permanent magnet rotating electric machineHITACHI LTD·Filed 2001·Granted Feb 25, 2003·120 cites·35 claims
- 0296US8674647B2Drive device for alternating current motor and electric motor vehicleIWAJI YOSHITAKA·Filed 2011·Granted Mar 18, 2014·18 cites·16 claims
- 0396US6917133B2Air conditioner having permanent magnet rotating electric machineHITACHI LTD·Filed 2003·Granted Jul 12, 2005·82 cites·36 claims
- 0491US6453400B1Semiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Sep 17, 2002·90 cites·24 claims
- 0591US6441525B1Permanent magnet rotating electric machineHITACHI LTD·Filed 2001·Granted Aug 27, 2002·43 cites·4 claims
- 0687US8040186B2Radio frequency amplifier circuit and mobile communication terminal using the samePANASONIC CORP·Filed 2009·Granted Oct 18, 2011·15 cites·21 claims
- 0786US6525510B1Vehicle operating systemHITACHI LTD·Filed 2002·Granted Feb 25, 2003·67 cites·16 claims
- 0885US12080664B2Semiconductor device and semiconductor moduleNUVOTON TECHNOLOGY CORP JAPAN·Filed 2023·Granted Sep 3, 2024·1 cites·11 claims
- 0984US6339817B1Semiconductor memory including main and sub memory portions having plural memory cell groups and a bidirectional data transfer circuitNEC CORP·Filed 1998·Granted Jan 15, 2002·58 cites·14 claims
- 1083US7425873B2Radio frequency amplification apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Sep 16, 2008·13 cites·6 claims
- 1183US7312403B2Circuit component mounting deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Dec 25, 2007·11 cites·4 claims
- 1283US7104363B2Power transmission system for elevatorMORI KAZUHISA·Filed 2001·Granted Sep 12, 2006·29 cites·15 claims
- 1383US6467584B2Door system including linear motor driving mechanismHITACHI LTD·Filed 2001·Granted Oct 22, 2002·25 cites·11 claims
- 1480US12165999B2Semiconductor device and semiconductor moduleNUVOTON TECHNOLOGY CORP JAPAN·Filed 2022·Granted Dec 10, 2024·1 cites·22 claims
- 1579US6376958B1Permanent magnet type synchronous motor and air compressorHITACHI LTD·Filed 2000·Granted Apr 23, 2002·25 cites·24 claims
- 1679US2025351556A1Semiconductor deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2025·Application pending·0 cites
- 1778US6441523B1Very high permanent magnet type electric rotating machine systemHITACHI LTD·Filed 2000·Granted Aug 27, 2002·24 cites·8 claims
- 1877US7545116B2Driver for induction motor and method of driving the sameHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Jun 9, 2009·11 cites·14 claims
- 1976US7639080B2Radio frequency amplifier circuit and mobile communication terminal using the samePANASONIC CORP·Filed 2007·Granted Dec 29, 2009·8 cites·2 claims
- 2076US6541880B2Linear motorHITACHI LTD·Filed 2001·Granted Apr 1, 2003·21 cites·6 claims
- 2173US6101146ASemiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Aug 8, 2000·33 cites·10 claims
- 2270US6697289B1Redundant address setting circuit and semiconductor memory device including the sameNEC CORP·Filed 2000·Granted Feb 24, 2004·18 cites·20 claims
- 2367US11894456B2Semiconductor device, battery protection circuit, and power management circuitNUVOTON TECHNOLOGY CORP JAPAN·Filed 2023·Granted Feb 6, 2024·0 cites·15 claims
- 2467US7671558B2Induction motor controllerHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Mar 2, 2010·6 cites·13 claims
- 2566US6377501B2Semiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Apr 23, 2002·20 cites·44 claims
- 2665US11195904B2High-frequency transistorPANASONIC SEMICONDUCTOR SOLUTIONS CO LTD·Filed 2020·Granted Dec 7, 2021·0 cites·12 claims
- 2765US2023215940A1Semiconductor device, battery protection circuit, and power management circuitNUVOTON TECHNOLOGY CORP JAPAN·Filed 2023·Application pending·0 cites
- 2863US12165958B2Power storage pack, semiconductor device, and semiconductor device manufacturing methodNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Granted Dec 10, 2024·0 cites·18 claims
- 2963US6016280ASemiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Jan 18, 2000·21 cites·4 claims
- 3061US6151256ASemiconductor integrated circuit deviceNEC CORP·Filed 1999·Granted Nov 21, 2000·15 cites·23 claims
- 3159US10756165B2High-frequency transistorPANASONIC IP MAN CO LTD·Filed 2019·Granted Aug 25, 2020·0 cites·11 claims
- 3258US6735144B2Semiconductor integrated circuit deviceNEC CORP·Filed 2002·Granted May 11, 2004·8 cites·22 claims
- 3356US6252788B1Semiconductor integrated circuit deviceNEC CORP·Filed 1999·Granted Jun 26, 2001·12 cites·4 claims
- 3455US7190982B2Radio frequency deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 13, 2007·7 cites·4 claims
- 3555US6675938B2Door system including linear motor driving mechanismHITACHI LTD·Filed 2002·Granted Jan 13, 2004·6 cites·13 claims
- 3653US11611265B2Electric compressorTOYOTA JIDOSHOKKI KK·Filed 2021·Granted Mar 21, 2023·0 cites·7 claims
- 3751US11362011B2Power amplification deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2021·Granted Jun 14, 2022·0 cites·18 claims
- 3850US6243279B1Semiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Jun 5, 2001·9 cites·21 claims
- 3949US2021301803A1Vehicle electric compressorTOYOTA JIDOSHOKKI KK·Filed 2021·Application pending·0 cites
- 4044US2022337029A1Semiconductor deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2022·Application pending·0 cites
- 4143US10862440B2High-frequency amplifierPANASONIC IP MAN CO LTD·Filed 2019·Granted Dec 8, 2020·0 cites·10 claims
- 4238US2003057785A1Permanent magnet rotating electric machineFiled 2002·Application pending·0 cites
- 4335US6191996B1Semiconductor memory device and data transmission methodNEC CORP·Filed 1999·Granted Feb 20, 2001·6 cites·10 claims
- 4432US2011175681A1Radio frequency power amplifier and wireless communication device including the samePANASONIC CORP·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →