Inventor · disambiguated record
Kazuaki Hiyama
Also filed as: HIYAMA KAZUAKI
26 granted patents·1 pending application·210 citations·filing 1999–2022
95Inventor score
Top patents by PatentIndex Score
27 records- 0195US7710187B2Gate drive circuitMITSUBISHI ELECTRIC CORP·Filed 2008·Granted May 4, 2010·30 cites·5 claims
- 0292US8610485B2Gate drive circuitHIYAMA KAZUAKI·Filed 2010·Granted Dec 17, 2013·15 cites·4 claims
- 0391US9455566B2Drive protection circuit, semiconductor module, and automobileMITSUBISHI ELECTRIC CORP·Filed 2012·Granted Sep 27, 2016·12 cites·8 claims
- 0484US7547992B2Drive device driving a plurality of semiconductor elements having respective reference potential electrodes coupled via a main electrode unit and alternating current power supply device provided with the drive deviceMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jun 16, 2009·13 cites·8 claims
- 0583US9716052B2Semiconductor device comprising a conductive film joining a diode and switching elementMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Jul 25, 2017·7 cites·6 claims
- 0678US11025245B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Jun 1, 2021·3 cites·1 claims
- 0778US6891707B2Semiconductor protection circuitMITSUBISHI ELECTRIC CORP·Filed 2001·Granted May 10, 2005·21 cites·4 claims
- 0876US7602595B2Semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Oct 13, 2009·8 cites·4 claims
- 0973US11139808B2Semiconductor device and power conversion systemMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Oct 5, 2021·2 cites·10 claims
- 1072US9530766B2Semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Dec 27, 2016·3 cites·3 claims
- 1171US6351399B2Power converterMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Feb 26, 2002·28 cites·24 claims
- 1270US10833669B2Semiconductor device, inverter, and automobileMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Nov 10, 2020·1 cites·10 claims
- 1369US9461640B2Switching element drive circuit, power module, and automobileHIYAMA KAZUAKI·Filed 2012·Granted Oct 4, 2016·3 cites·9 claims
- 1469US9013850B2Semiconductor deviceHIYAMA KAZUAKI·Filed 2012·Granted Apr 21, 2015·3 cites·3 claims
- 1569US6654262B2Inverter with pre-charging capacitor to reduce inrush currentMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Nov 25, 2003·24 cites·20 claims
- 1661US6735098B2Inrush current limiting circuit, power source device and power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2000·Granted May 11, 2004·15 cites·15 claims
- 1755US8933568B2Semiconductor deviceTAKAYAMA TSUYOSHI·Filed 2010·Granted Jan 13, 2015·1 cites·15 claims
- 1854US9843318B2Buffer circuitMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Dec 12, 2017·1 cites·3 claims
- 1952US6459598B1Inverter deviceMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Oct 1, 2002·10 cites·18 claims
- 2052US2024421746A1Motor control device and semiconductor unitMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 2151US6680630B1Driver circuit for power deviceMITSUBISHI ELECTRIC CORP·Filed 2003·Granted Jan 20, 2004·9 cites·8 claims
- 2249US12294287B2Semiconductor switching element drive circuit and semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2020·Granted May 6, 2025·0 cites·11 claims
- 2346US10978953B2Flyback power supply, inverter and electrically powered vehicleMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Apr 13, 2021·0 cites·7 claims
- 2445US12395164B2Switching element drive circuitMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Aug 19, 2025·0 cites·8 claims
- 2540US8421163B2Power moduleHIYAMA KAZUAKI·Filed 2011·Granted Apr 16, 2013·0 cites·6 claims
- 2634US6756825B2Power device driving circuitMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Jun 29, 2004·0 cites·8 claims
- 2730US6018474ASwitching deviceMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Jan 25, 2000·1 cites·16 claims
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