Inventor · disambiguated record
Masahiko Hirokawa
Also filed as: HIROKAWA MASAHIKO
10 granted patents·1 pending application·915 citations·filing 2001–2021
89Inventor score
Top patents by PatentIndex Score
11 records- 0195US8369056B2Power supply control device, method for controlling power supply, program and power supply deviceTDK LAMBDA CORP·Filed 2010·Granted Feb 5, 2013·832 cites·7 claims
- 0277US8461807B2Battery protection circuit, method for protecting battery, power supply device and programSENRIUCHI TADAO·Filed 2010·Granted Jun 11, 2013·8 cites·9 claims
- 0376US11611283B2Switching power supply unit and electric power supply systemTDK CORP·Filed 2021·Granted Mar 21, 2023·1 cites·10 claims
- 0474US6567285B2Switching power supply unitTDK CORP·Filed 2001·Granted May 20, 2003·36 cites·10 claims
- 0572US8604797B2Method for determining cell number, cell number determination device, power supply device and programSENRIUCHI TADAO·Filed 2010·Granted Dec 10, 2013·2 cites·18 claims
- 0662US6532160B2Switching power supplyTDK CORP·Filed 2002·Granted Mar 11, 2003·18 cites·22 claims
- 0754US6683798B2Switching power supply with transfer function control circuitTDK CORP·Filed 2002·Granted Jan 27, 2004·11 cites·18 claims
- 0847US6717390B2Switching power supplyTDK CORP·Filed 2002·Granted Apr 6, 2004·7 cites·22 claims
- 0945US12500516B2Switching power supply apparatus and electric power supply systemTDK CORP·Filed 2021·Granted Dec 16, 2025·0 cites·15 claims
- 1042US11539299B2Switching power supply unit and electric power supply systemTDK CORP·Filed 2021·Granted Dec 27, 2022·0 cites·8 claims
- 1131US2002134999A1Semiconductor deviceTDK CORP·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →