Inventor · disambiguated record
Yusuke Takagi
Also filed as: TAKAGI YUSUKE
48 granted patents·10 pending applications·673 citations·filing 1985–2022
98Inventor score
Top patents by PatentIndex Score
58 records- 0197US4989626AApparatus for and method of controlling the opening and closing of channel for liquidHITACHI LTD·Filed 1989·Granted Feb 5, 1991·286 cites·45 claims
- 0296US10348214B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jul 9, 2019·13 cites·10 claims
- 0396US8726858B2Variable compression ratio internal combustion engineNISSAN MOTOR·Filed 2013·Granted May 20, 2014·19 cites·20 claims
- 0492US9179581B2Power semiconductor device and power conversion deviceSUWA TOKIHITO·Filed 2011·Granted Nov 3, 2015·16 cites·9 claims
- 0592US8946567B2Power module, power converter device, and electrically powered vehicleNAKATSU KINYA·Filed 2009·Granted Feb 3, 2015·19 cites·14 claims
- 0692US8888168B2Front vehicle body structureFUJI HEAVY IND LTD·Filed 2013·Granted Nov 18, 2014·23 cites·21 claims
- 0792US4721388AMethod of measuring shape of object in non-contacting mannerHITACHI LTD·Filed 1985·Granted Jan 26, 1988·122 cites·11 claims
- 0891US10034401B2Power semiconductor device and power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jul 24, 2018·6 cites·13 claims
- 0990US11139748B2Power module, power converter device, and electrically powered vehicleHITACHI ASTEMO LTD·Filed 2019·Granted Oct 5, 2021·4 cites·3 claims
- 1089US10279653B2Power converterHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted May 7, 2019·6 cites·5 claims
- 1189US9729076B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Aug 8, 2017·5 cites·8 claims
- 1287US10037930B2Power semiconductor module and manufacturing method of power semiconductor moduleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jul 31, 2018·6 cites·11 claims
- 1387US9476366B2Control device and control method for variable compression ratio internal combustion enginesNISSAN MOTOR·Filed 2013·Granted Oct 25, 2016·7 cites·13 claims
- 1487US8659130B2Power module and power module manufacturing methodTAKAGI YUSUKE·Filed 2011·Granted Feb 25, 2014·13 cites·13 claims
- 1583US11427916B2Surface treatment apparatus and surface treatment methodMITSUBISHI HEAVY IND LTD·Filed 2017·Granted Aug 30, 2022·2 cites·8 claims
- 1683US9407163B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Aug 2, 2016·4 cites·4 claims
- 1783US6877466B2Variable valve operating system for internal combustion engineNISSAN MOTOR·Filed 2004·Granted Apr 12, 2005·22 cites·16 claims
- 1882US9270195B2Power converter including a power module allowing main current supply and cutoffFUJINO SHINICHI·Filed 2010·Granted Feb 23, 2016·10 cites·12 claims
- 1982US5101848AShut off apparatus for a fluid passage, method for controlling the same, and method for confirming closing of the sameHITACHI LTD·Filed 1991·Granted Apr 7, 1992·51 cites·11 claims
- 2078US9422872B2Variable compression ratio internal combustion engineNISSAN MOTOR·Filed 2012·Granted Aug 23, 2016·3 cites·14 claims
- 2176US11432419B2Power semiconductor device and power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Aug 30, 2022·1 cites·5 claims
- 2276US9497873B2Power module including first and second sealing resinsHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Nov 15, 2016·4 cites·10 claims
- 2375US10512181B2Power semiconductor device and power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Dec 17, 2019·1 cites·12 claims
- 2473US10962309B2Stacked heat exchangerDENSO CORP·Filed 2019·Granted Mar 30, 2021·2 cites·10 claims
- 2571US10629612B2Memory deviceTOSHIBA MEMORY CORP·Filed 2018·Granted Apr 21, 2020·2 cites·19 claims
- 2670US11929307B2Plurality of lead frames for cooling a power deviceHITACHI ASTEMO LTD·Filed 2020·Granted Mar 12, 2024·1 cites·7 claims
- 2764US10615102B2Power semiconductor moduleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Apr 7, 2020·1 cites·5 claims
- 2863US10054064B2Actuator mounting structure for internal-combustion engine having variable compression ratioNISSAN MOTOR·Filed 2013·Granted Aug 21, 2018·1 cites·7 claims
- 2960US9693466B2Wiring board and manufacturing method thereofHARAO AKIRA·Filed 2012·Granted Jun 27, 2017·1 cites·1 claims
- 3059US8847374B2Power semiconductor module and manufacturing method thereofIDE EIICHI·Filed 2011·Granted Sep 30, 2014·1 cites·3 claims
- 3158US12368386B2Power conversion device and method for manufacturing power conversion deviceHITACHI ASTEMO LTD·Filed 2021·Granted Jul 22, 2025·0 cites·7 claims
- 3257US12007183B2Heat exchangerDENSO CORP·Filed 2021·Granted Jun 11, 2024·0 cites·4 claims
- 3356US12209814B2Heat exchanger having a swirling componentDENSO CORP·Filed 2022·Granted Jan 28, 2025·0 cites·7 claims
- 3455US2025105110A1Semiconductor device and power conversion deviceHITACHI ASTEMO LTD·Filed 2022·Application pending·0 cites
- 3554US12283536B2Power semiconductor device and manufacturing method of power semiconductor deviceHITACHI ASTEMO LTD·Filed 2020·Granted Apr 22, 2025·0 cites·12 claims
- 3653US11820199B2Heat exchangerDENSO CORP·Filed 2020·Granted Nov 21, 2023·0 cites·11 claims
- 3753USD651170SPortion of a power module for power inverterYURA MASASHI·Filed 2010·Granted Dec 27, 2011·9 cites·1 claims
- 3852US9169775B2Multi-link internal combustion engineNISSAN MOTOR·Filed 2013·Granted Oct 27, 2015·0 cites·10 claims
- 3952US7685979B2Variable valve timing mechanism for internal combustion engineNISSAN MOTOR·Filed 2007·Granted Mar 30, 2010·1 cites·3 claims
- 4052US2025132225A1Semiconductor deviceHITACHI ASTEMO LTD·Filed 2022·Application pending·0 cites
- 4152US2024418296A1Pipe-joining attachment for work machine, work machine provided with same, and pipe-joining methodKUBOTA KK·Filed 2022·Application pending·0 cites
- 4252US2024243032A1Electric Circuit Body and Power Conversion DeviceHITACHI ASTEMO LTD·Filed 2022·Application pending·0 cites
- 4351US2024096727A1Power Semiconductor DeviceHITACHI ASTEMO LTD·Filed 2021·Application pending·0 cites
- 4450US12506133B2Electric circuit body, power conversion device, and method for manufacturing electric circuit bodyHITACHI ASTEMO LTD·Filed 2020·Granted Dec 23, 2025·0 cites·12 claims
- 4550US2024006271A1Heating element cooling structure and power conversion deviceHITACHI ASTEMO LTD·Filed 2021·Application pending·0 cites
- 4649US12424508B2Power moduleHITACHI ASTEMO LTD·Filed 2021·Granted Sep 23, 2025·0 cites·8 claims
- 4749US12163744B2Heat exchangerDENSO CORP·Filed 2021·Granted Dec 10, 2024·0 cites·13 claims
- 4849US11482476B2Power semiconductor device with an element installation conductorHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Oct 25, 2022·0 cites·7 claims
- 4948USD651565SPortion of power module for power inverterYURA MASASHI·Filed 2010·Granted Jan 3, 2012·7 cites·1 claims
- 5047US2014334109A1Electronic Component Module and Method of Manufacturing the SameYAZAKI CORP·Filed 2012·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →