Inventor · disambiguated record
Yu Yonezawa
Also filed as: YONEZAWA YU
50 granted patents·16 pending applications·152 citations·filing 2003–2024
97Inventor score
Top patents by PatentIndex Score
66 records- 0198US8378647B2Power supply unit and information processorFUJITSU LTD·Filed 2011·Granted Feb 19, 2013·48 cites·9 claims
- 0296US8749210B1Power supply deviceFUJITSU LTD·Filed 2013·Granted Jun 10, 2014·20 cites·8 claims
- 0387US9887635B2Double-ended forward converter and power supply deviceFUJITSU LTD·Filed 2015·Granted Feb 6, 2018·5 cites·2 claims
- 0486US10872717B2Composite magnetic material and magnetic coreTDK CORP·Filed 2018·Granted Dec 22, 2020·2 cites·19 claims
- 0586US9837208B2Inductor apparatus and inductor apparatus manufacturing methodFUJITSU LTD·Filed 2014·Granted Dec 5, 2017·5 cites·11 claims
- 0684US9472333B2Planar type transformer and switching power supply circuitFUJITSU LTD·Filed 2015·Granted Oct 18, 2016·2 cites·5 claims
- 0781US7965159B2Micro-switching device and manufacturing method for the sameFUJITSU LTD·Filed 2007·Granted Jun 21, 2011·9 cites·4 claims
- 0880US9800145B2Control device, DC-DC converter, switching power supply apparatus, and information processing apparatusFUJITSU LTD·Filed 2015·Granted Oct 24, 2017·3 cites·15 claims
- 0976US8693222B2DC-DC converter, power supply unit and an information processing apparatusYONEZAWA YU·Filed 2011·Granted Apr 8, 2014·5 cites·12 claims
- 1075US7986507B2Variable capacitorFUJITSU LTD·Filed 2008·Granted Jul 26, 2011·7 cites·10 claims
- 1174US10797595B2Power supply and control method for power supplyFDK CORP·Filed 2019·Granted Oct 6, 2020·2 cites·8 claims
- 1274US8773103B2Power supply deviceYONEZAWA YU·Filed 2012·Granted Jul 8, 2014·4 cites·7 claims
- 1373US8427793B2Switching power supply, control circuit for controlling switching power supply, control method of switching power supply and module substrateYONEZAWA YU·Filed 2010·Granted Apr 23, 2013·4 cites·11 claims
- 1472US7755459B2Micro-switching device and method of manufacturing the sameFUJITSU LTD·Filed 2008·Granted Jul 13, 2010·6 cites·14 claims
- 1570US9590512B2Power supply apparatusFUJITSU LTD·Filed 2014·Granted Mar 7, 2017·3 cites·5 claims
- 1669US7755460B2Micro-switching deviceFUJITSU LTD·Filed 2007·Granted Jul 13, 2010·5 cites·17 claims
- 1767US9438107B2Control device, control method, and power supply deviceFUJITSU LTD·Filed 2013·Granted Sep 6, 2016·2 cites·20 claims
- 1866US8901906B2Control circuit and electronic apparatus using the sameFUJITSU LTD·Filed 2012·Granted Dec 2, 2014·2 cites·5 claims
- 1965US9960695B2Power supply apparatus and error detecting method for power supply apparatusFUJITSU LTD·Filed 2016·Granted May 1, 2018·1 cites·4 claims
- 2064US11682510B2Composite magnetic material, magnetic core, and electronic componentTDK CORP·Filed 2020·Granted Jun 20, 2023·0 cites·13 claims
- 2164US9166480B2Insulation-type power factor correction circuitFUJITSU LTD·Filed 2013·Granted Oct 20, 2015·2 cites·8 claims
- 2263US8350415B2Switch circuit with inductive load and capacitorFUJITSU LTD·Filed 2010·Granted Jan 8, 2013·2 cites·13 claims
- 2362US2018068787A1Inductor apparatus and inductor apparatus manufacturing methodFUJITSU LTD·Filed 2017·Application pending·0 cites
- 2461US10923258B2Dust core and inductor elementTDK CORP·Filed 2018·Granted Feb 16, 2021·0 cites·8 claims
- 2561US7786830B2Switch with movable portionFUJITSU LTD·Filed 2007·Granted Aug 31, 2010·2 cites·6 claims
- 2659US9762232B2Semiconductor deviceFUJITSU LTD·Filed 2014·Granted Sep 12, 2017·1 cites·12 claims
- 2758US2024258897A1Current detection circuitNATIONAL UNIV CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM·Filed 2024·Application pending·0 cites
- 2857US11189408B2Soft magnetic alloy and magnetic deviceTDK CORP·Filed 2018·Granted Nov 30, 2021·0 cites·14 claims
- 2957US10854365B2Soft magnetic alloy and magnetic deviceTDK CORP·Filed 2018·Granted Dec 1, 2020·0 cites·14 claims
- 3057US10541072B2Soft magnetic alloyTDK CORP·Filed 2017·Granted Jan 21, 2020·0 cites·13 claims
- 3156US10943718B2Soft magnetic alloy and magnetic deviceTDK CORP·Filed 2018·Granted Mar 9, 2021·0 cites·15 claims
- 3255US2023034570A1Water electrolysis system and current control apparatusFUJITSU LTD·Filed 2022·Application pending·0 cites
- 3353US7486488B2Electric contact switching device and power consumption control circuitWAKATSUKI NOBORU·Filed 2004·Granted Feb 3, 2009·8 cites·13 claims
- 3450US9444350B2DC-DC converter with LC resonance circuit and transformerFUJITSU LTD·Filed 2014·Granted Sep 13, 2016·0 cites·12 claims
- 3549US10014770B1Power supply device, control circuit for power supply device, and control method for power supply deviceFUJITSU LTD·Filed 2017·Granted Jul 3, 2018·0 cites·6 claims
- 3648US9559593B2Synchronous rectification converter and control method of synchronous rectification converterFUJITSU LTD·Filed 2014·Granted Jan 31, 2017·0 cites·3 claims
- 3748US2020184033A1Simulation apparatus of power supply deviceFUJITSU LTD·Filed 2019·Application pending·0 cites
- 3847US10008940B2Power supply device and method for controlling power supply circuitFUJITSU LTD·Filed 2016·Granted Jun 26, 2018·0 cites·9 claims
- 3946US10627455B2Capacitor life diagnosis apparatus and capacitor life diagnosis methodFUJITSU LTD·Filed 2017·Granted Apr 21, 2020·0 cites·12 claims
- 4046US9893629B2Control method for switching power supply circuit and power supply deviceFUJITSU LTD·Filed 2016·Granted Feb 13, 2018·0 cites·5 claims
- 4146US9318972B2Power circuitFUJITSU LTD·Filed 2015·Granted Apr 19, 2016·0 cites·10 claims
- 4245US7961448B2Drive control method and unit for micro machine deviceFUJITSU LTD·Filed 2008·Granted Jun 14, 2011·0 cites·19 claims
- 4344US7405639B2SwitchFUJITSU MEDIA DEVICES LTD·Filed 2006·Granted Jul 29, 2008·0 cites·12 claims
- 4444US2021050791A1Power supply device and non-transitory computer-readable storage medium for storing power supply management programFUJITSU LTD·Filed 2020·Application pending·0 cites
- 4544US2007172988A1Microstructure manufacturing method and microstructureFUJITSU MEDIA DEVICES LTD·Filed 2007·Application pending·0 cites
- 4643US11028492B2Electrolytic system, electrolytic control circuit, and control method for electrolytic systemFUJITSU LTD·Filed 2018·Granted Jun 8, 2021·0 cites·17 claims
- 4743US9553521B2Power supply device and control method of power supply deviceFUJITSU LTD·Filed 2015·Granted Jan 24, 2017·0 cites·11 claims
- 4843US9461542B2Power supply apparatusFUJITSU LTD·Filed 2014·Granted Oct 4, 2016·0 cites·4 claims
- 4943US8258772B2DC-DC converterYONEZAWA YU·Filed 2011·Granted Sep 4, 2012·0 cites·8 claims
- 5043US7053739B2Electrical contacting device and method of making the sameFUJITSU LTD·Filed 2003·Granted May 30, 2006·2 cites·14 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →