Inventor · disambiguated record
Takeshi Tokuyama
Also filed as: TOKUYAMA TAKESHI
67 granted patents·13 pending applications·618 citations·filing 1974–2023
99Inventor score
Top patents by PatentIndex Score
80 records- 0199US7978471B2Electric power conversion apparatusHITACHI LTD·Filed 2009·Granted Jul 12, 2011·68 cites·15 claims
- 0297US8416574B2Electric power conversion apparatusTOKUYAMA TAKESHI·Filed 2011·Granted Apr 9, 2013·28 cites·9 claims
- 0397US8064234B2Power conversion apparatusTOKUYAMA TAKESHI·Filed 2008·Granted Nov 22, 2011·45 cites·12 claims
- 0496US10348214B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jul 9, 2019·13 cites·10 claims
- 0596US9137932B2Electric power conversion apparatusHITACHI LTD·Filed 2015·Granted Sep 15, 2015·12 cites·7 claims
- 0696US9042101B2Electric power conversion apparatusHITACHI LTD·Filed 2014·Granted May 26, 2015·16 cites·8 claims
- 0794US8917509B2Electric power conversion apparatusHITACHI LTD·Filed 2013·Granted Dec 23, 2014·11 cites·12 claims
- 0893US10524398B2Electric power conversion apparatusHITACHI LTD·Filed 2017·Granted Dec 31, 2019·6 cites·7 claims
- 0993US9000553B2Power module and power converter containing power moduleTOKUYAMA TAKESHI·Filed 2011·Granted Apr 7, 2015·16 cites·13 claims
- 1093US7968925B2Power semiconductor module for inverter circuit systemHITACHI LTD·Filed 2010·Granted Jun 28, 2011·14 cites·8 claims
- 1193US7812443B2Power semiconductor module for inverter circuit systemHITACHI LTD·Filed 2008·Granted Oct 12, 2010·26 cites·20 claims
- 1292US8946567B2Power module, power converter device, and electrically powered vehicleNAKATSU KINYA·Filed 2009·Granted Feb 3, 2015·19 cites·14 claims
- 1391US8952525B2Semiconductor module and method for manufacturing semiconductor moduleIDE EIICHI·Filed 2011·Granted Feb 10, 2015·23 cites·8 claims
- 1491US8675364B2Power module and power conversion deviceTOKUYAMA TAKESHI·Filed 2010·Granted Mar 18, 2014·14 cites·10 claims
- 1590US11139748B2Power module, power converter device, and electrically powered vehicleHITACHI ASTEMO LTD·Filed 2019·Granted Oct 5, 2021·4 cites·3 claims
- 1689US9729076B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Aug 8, 2017·5 cites·8 claims
- 1789US8653652B2Semiconductor device, power semiconductor module and power conversion device equipped with power semiconductor moduleTOKUYAMA TAKESHI·Filed 2010·Granted Feb 18, 2014·12 cites·20 claims
- 1889US8081472B2Electric circuit device, electric circuit module, and power converterTOKUYAMA TAKESHI·Filed 2010·Granted Dec 20, 2011·10 cites·7 claims
- 1988US7961472B2Electric circuit device, electric circuit module, and power converterHITACHI LTD·Filed 2007·Granted Jun 14, 2011·14 cites·18 claims
- 2087US10177676B2Power converterHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Jan 8, 2019·6 cites·8 claims
- 2187US8659130B2Power module and power module manufacturing methodTAKAGI YUSUKE·Filed 2011·Granted Feb 25, 2014·13 cites·13 claims
- 2287US8503209B2Power conversion apparatus and cooling structure thereforTOKUYAMA TAKESHI·Filed 2011·Granted Aug 6, 2013·6 cites·3 claims
- 2386US9648791B2Electric power conversion apparatusHITACHI LTD·Filed 2015·Granted May 9, 2017·3 cites·7 claims
- 2484US10856450B2Power conversion apparatusHITACHI LTD·Filed 2019·Granted Dec 1, 2020·2 cites·6 claims
- 2584US8634220B2Power conversion apparatusHITACHI LTD·Filed 2013·Granted Jan 21, 2014·4 cites·4 claims
- 2683US9407163B2Power module, power converter device, and electrically powered vehicleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Aug 2, 2016·4 cites·4 claims
- 2782US9362261B2Power semiconductor moduleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Jun 7, 2016·6 cites·7 claims
- 2880US9609789B2Power conversion apparatusHITACHI LTD·Filed 2014·Granted Mar 28, 2017·3 cites·9 claims
- 2977US9852962B2Waterproof electronic device and manufacturing method thereofHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Dec 26, 2017·3 cites·10 claims
- 3076US8743548B2Electric circuit device, electric circuit module, and power converterTOKUYAMA TAKESHI·Filed 2011·Granted Jun 3, 2014·3 cites·8 claims
- 3174US10763190B2Power semiconductor module, power conversion device using same, and method for manufacturing power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Sep 1, 2020·2 cites·14 claims
- 3274US4005450AInsulated gate field effect transistor having drain region containing low impurity concentration layerHITACHI LTD·Filed 1974·Granted Jan 25, 1977·19 cites·13 claims
- 3373US10818573B2Power semiconductor module with heat dissipation plateHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Oct 27, 2020·2 cites·11 claims
- 3473US10238015B2Power conversion apparatusHITACHI LTD·Filed 2016·Granted Mar 19, 2019·1 cites·8 claims
- 3573US9583264B2Capacitor device and electrical power conversion deviceHITACHI LTD·Filed 2014·Granted Feb 28, 2017·2 cites·10 claims
- 3670US12301061B2Rotor of rotating electrical machine and electrical drive systemHITACHI ASTEMO LTD·Filed 2021·Granted May 13, 2025·0 cites·12 claims
- 3770US5812997AMethod and apparatus for deriving an association rule between dataIBM·Filed 1996·Granted Sep 22, 1998·61 cites·23 claims
- 3869US10367426B2Power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Jul 30, 2019·2 cites·6 claims
- 3969US6492593B2Gold wire for semiconductor element connection and semiconductor element connection methodTANAKA ELECTRONICS IND·Filed 2001·Granted Dec 10, 2002·18 cites·12 claims
- 4068US10966355B2Electric power conversion apparatusHITACHI LTD·Filed 2019·Granted Mar 30, 2021·0 cites·11 claims
- 4167US12261513B2Electric system for cooling a motor and inverter unitHITACHI ASTEMO LTD·Filed 2021·Granted Mar 25, 2025·0 cites·9 claims
- 4267US8723306B2Power semiconductor unit, power module, power semiconductor unit manufacturing method, and power module manufacturing methodTSUYUNO NOBUTAKE·Filed 2011·Granted May 13, 2014·3 cites·14 claims
- 4366US9307666B2Electric circuit device, electric circuit module, and power converterHITACHI LTD·Filed 2014·Granted Apr 5, 2016·1 cites·6 claims
- 4465US5983222AMethod and apparatus for computing association rules for data mining in large databaseIBM·Filed 1996·Granted Nov 9, 1999·34 cites·18 claims
- 4564US12491774B2Motor control device, electromechanical integrated unit, boost converter system, electric vehicle system, and motor control methodHITACHI ASTEMO LTD·Filed 2021·Granted Dec 9, 2025·0 cites·15 claims
- 4664US10615102B2Power semiconductor moduleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Apr 7, 2020·1 cites·5 claims
- 4763US12506419B2Power conversion deviceHITACHI ASTEMO LTD·Filed 2022·Granted Dec 23, 2025·0 cites·7 claims
- 4863US10194563B2Power conversion deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jan 29, 2019·1 cites·11 claims
- 4962US12184189B2Power conversion deviceHITACHI ASTEMO LTD·Filed 2021·Granted Dec 31, 2024·0 cites·6 claims
- 5062US10068880B2Power moduleHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Sep 4, 2018·1 cites·14 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →