Inventor · disambiguated record
Ken Matsuura
Also filed as: MATSUURA KEN
30 granted patents·2 pending applications·205 citations·filing 2000–2021
96Inventor score
Top patents by PatentIndex Score
32 records- 0195US10476392B1Switching power supply device comparing first and second voltage rangesTDK CORP·Filed 2018·Granted Nov 12, 2019·31 cites·16 claims
- 0291US7132818B2Switching power supply control device and switching power supplyTDK CORP·Filed 2005·Granted Nov 7, 2006·36 cites·13 claims
- 0385US9960673B2Control circuit and switching power supplyTDK CORP·Filed 2016·Granted May 1, 2018·5 cites·11 claims
- 0479US10186962B2Control circuit and switching power supplyTDK CORP·Filed 2018·Granted Jan 22, 2019·3 cites·18 claims
- 0579US7327100B2Discharge lamp lighting apparatusTDK CORP·Filed 2006·Granted Feb 5, 2008·7 cites·2 claims
- 0678US10511219B2Switching power supply with a measuring and calculating process for the switching timesTDK CORP·Filed 2019·Granted Dec 17, 2019·3 cites·2 claims
- 0773US10574135B2Zero current detection circuit for bridgeless totem pole power factor correction converter and bridgeless totem pole power factor correction converterTDK CORP·Filed 2019·Granted Feb 25, 2020·2 cites·6 claims
- 0871US9960683B2Electronic circuit deviceTDK CORP·Filed 2014·Granted May 1, 2018·2 cites·20 claims
- 0970US6956360B2Switching power supply controller and switching power supplyTDK CORP·Filed 2004·Granted Oct 18, 2005·23 cites·18 claims
- 1068US7202611B2Discharge lamp lighting deviceTDK CORP·Filed 2006·Granted Apr 10, 2007·3 cites·2 claims
- 1168US6960904B2Switching power supply controller and switching power supplyTDK CORP·Filed 2004·Granted Nov 1, 2005·21 cites·53 claims
- 1267US7075278B2Switching power supply controller and switching power supplyTDK CORP·Filed 2004·Granted Jul 11, 2006·20 cites·19 claims
- 1367US6511007B1Double-bearing type reelKEN MATSURA RACING SERVICE CO·Filed 2000·Granted Jan 28, 2003·12 cites·13 claims
- 1463US9425694B2Current resonance type DC-DC converter and method for operating current resonance type DC-DC converterTDK CORP·Filed 2013·Granted Aug 23, 2016·2 cites·12 claims
- 1562US12506400B2Magnetic component, power conversion apparatus, and power conversion systemTDK CORP·Filed 2021·Granted Dec 23, 2025·0 cites·16 claims
- 1662US10110132B2Switching power supply deviceTDK CORP·Filed 2018·Granted Oct 23, 2018·1 cites·8 claims
- 1761US10263537B2DC/AC power conversion apparatus having switchable current pathsTDK CORP·Filed 2017·Granted Apr 16, 2019·1 cites·12 claims
- 1861US9118251B2Power supply deviceTDK CORP·Filed 2013·Granted Aug 25, 2015·2 cites·4 claims
- 1961US7078884B2Power supply apparatus and control circuit thereforTDK CORP·Filed 2004·Granted Jul 18, 2006·11 cites·3 claims
- 2054US6683798B2Switching power supply with transfer function control circuitTDK CORP·Filed 2002·Granted Jan 27, 2004·11 cites·18 claims
- 2147US6717390B2Switching power supplyTDK CORP·Filed 2002·Granted Apr 6, 2004·7 cites·22 claims
- 2246US2025385615A1Switching power supply apparatus and electric power supply systemTDK CORP·Filed 2021·Application pending·0 cites
- 2344US10734886B2Switching power supply deviceTDK CORP·Filed 2019·Granted Aug 4, 2020·0 cites·18 claims
- 2441US10432110B2Power converter having resonant frequencies around two and four times the switching frequencyTDK CORP·Filed 2018·Granted Oct 1, 2019·0 cites·9 claims
- 2540US10630277B2FET driving circuitTDK CORP·Filed 2018·Granted Apr 21, 2020·0 cites·16 claims
- 2640US10505462B2Power converterTDK CORP·Filed 2018·Granted Dec 10, 2019·0 cites·15 claims
- 2740US10312738B2Wireless power transmission systemTDK CORP·Filed 2017·Granted Jun 4, 2019·0 cites·12 claims
- 2839US10498325B2FET driving circuitTDK CORP·Filed 2018·Granted Dec 3, 2019·0 cites·11 claims
- 2939US7071666B2Switching power supply, and method and circuit for regulating output of the sameTDK CORP·Filed 2004·Granted Jul 4, 2006·2 cites·11 claims
- 3037US9564803B1Control circuit and switching power supply unitTDK CORP·Filed 2016·Granted Feb 7, 2017·0 cites·20 claims
- 3134US9450497B2Current resonance DC-DC converterTDK CORP·Filed 2014·Granted Sep 20, 2016·0 cites·16 claims
- 3231US2002134999A1Semiconductor deviceTDK CORP·Filed 2002·Application pending·0 cites
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