Inventor · disambiguated record
Akihiko Kanouda
Also filed as: KANOUDA AKIHIKO · NEMOTO LEGAL REPRESENTATIVE IS
72 granted patents·20 pending applications·2,317 citations·filing 1989–2023
99Inventor score
Files withHITACHI LTD54HITACHI COMP PERIPHERALS CO9SASE TAKASHI5NORIMATSU YASUAKI4RENESAS TECH CORP4
Top patents by PatentIndex Score
92 records- 0198US7385380B2Switching power supplyRENESAS TECH CORP·Filed 2007·Granted Jun 10, 2008·202 cites·10 claims
- 0298US7138786B2Power supply driver circuitRENESAS TECH CORP·Filed 2005·Granted Nov 21, 2006·227 cites·11 claims
- 0397US7883808B2Power supply apparatus with fuel cell and method of controlling the sameHITACHI LTD·Filed 2006·Granted Feb 8, 2011·152 cites·3 claims
- 0497US7495415B2DC backup power supply systemHITACHI LTD·Filed 2005·Granted Feb 24, 2009·50 cites·22 claims
- 0596US8207717B2Buck-boost DC-DC converter with auxiliary inductors for zero current switchingURUNO JUNPEI·Filed 2010·Granted Jun 26, 2012·50 cites·6 claims
- 0696US7589436B2Data processing unit and DC backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2005·Granted Sep 15, 2009·30 cites·10 claims
- 0796US6879137B2Power-supply deviceHITACHI LTD·Filed 2004·Granted Apr 12, 2005·114 cites·16 claims
- 0895US5412558ASemiconductor integrated circuit unitHITACHI LTD·Filed 1993·Granted May 2, 1995·187 cites·26 claims
- 0994US5008586ASolid state current sensing circuit and protection circuitHITACHI LTD·Filed 1989·Granted Apr 16, 1991·54 cites·7 claims
- 1092US7638904B2Isolated bidirectional DC-DC converterHITACHI LTD·Filed 2005·Granted Dec 29, 2009·40 cites·13 claims
- 1192US5280228AInverter circuitHITACHI LTD·Filed 1991·Granted Jan 18, 1994·115 cites·20 claims
- 1291US8724348B2Power-supply unit, hard-disk drive, and switching method of the power-supply unitSASE TAKASHI·Filed 2010·Granted May 13, 2014·14 cites·16 claims
- 1391US5768117APower supply system for supplying electric power to a load through plural convertersHITACHI LTD·Filed 1994·Granted Jun 16, 1998·167 cites·19 claims
- 1489US7667350B2Electric power source apparatus using fuel cell and method of controlling the sameHITACHI LTD·Filed 2005·Granted Feb 23, 2010·15 cites·8 claims
- 1589US7551462B2Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformerHITACHI LTD·Filed 2006·Granted Jun 23, 2009·25 cites·1 claims
- 1689US6798180B2Power-supply deviceHITACHI LTD·Filed 2003·Granted Sep 28, 2004·48 cites·16 claims
- 1789US6489756B2DC-DC converter with switchable control modeHITACHI LTD·Filed 2001·Granted Dec 3, 2002·63 cites·14 claims
- 1888US8605464B2Power converter, control method of power converter, and hard disk driveSASE TAKASHI·Filed 2012·Granted Dec 10, 2013·10 cites·16 claims
- 1988US6580597B2Voltage regulator module for micro processor and CPO using a super capacitorHITACHI LTD·Filed 2002·Granted Jun 17, 2003·48 cites·12 claims
- 2087US7840840B2DC backup power supply system, a disk array and a DC backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Nov 23, 2010·25 cites·19 claims
- 2187US7432617B2Uninterruptible power systemHITACHI LTD·Filed 2006·Granted Oct 7, 2008·22 cites·20 claims
- 2286US7846568B2Power supply and control method thereforHITACHI LTD·Filed 2005·Granted Dec 7, 2010·7 cites·20 claims
- 2385US6567261B2DC-DC step-down converter with super capacitorHITACHI LTD·Filed 2002·Granted May 20, 2003·37 cites·6 claims
- 2485US5502430AFlat transformer and power supply unit having flat transformerHITACHI LTD·Filed 1993·Granted Mar 26, 1996·41 cites·35 claims
- 2584US9246337B2Battery pack and battery pack controllerIWASAWA HIROSHI·Filed 2010·Granted Jan 26, 2016·12 cites·14 claims
- 2684US8654551B2Supply device, and LED lighting equipment using the sameSASE TAKASHI·Filed 2011·Granted Feb 18, 2014·8 cites·17 claims
- 2784US7157810B2Backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2004·Granted Jan 2, 2007·47 cites·15 claims
- 2883US6977448B2Backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2003·Granted Dec 20, 2005·46 cites·11 claims
- 2980US8199530B2Power supply unit, hard disk drive and method of switching the power supply unitSASE TAKASHI·Filed 2009·Granted Jun 12, 2012·16 cites·13 claims
- 3077US7705562B2Switching power supply unit and disk array systemHITACHI COMP PERIPHERALS CO·Filed 2006·Granted Apr 27, 2010·15 cites·12 claims
- 3176US7557546B2Unidirectional DC-DC converterHITACHI LTD·Filed 2007·Granted Jul 7, 2009·13 cites·3 claims
- 3275US7049711B2Uninterruptible power systemHITACHI COMP PERIPHERALS CO·Filed 2003·Granted May 23, 2006·24 cites·18 claims
- 3374US7406623B2DC backup power supply system and disk array using sameHITACHI COMP PERIPHERALS CO·Filed 2004·Granted Jul 29, 2008·27 cites·23 claims
- 3474US7403365B2Over-current detection circuit and method for power-supply deviceHITACHI LTD·Filed 2006·Granted Jul 22, 2008·12 cites·10 claims
- 3574US7268611B2Semiconductor device and memory card using sameRENESAS TECH CORP·Filed 2003·Granted Sep 11, 2007·19 cites·35 claims
- 3673US8305065B2Power supplying apparatus including a pulse-width modulation oscillator and smoothing filtersSASE TAKASHI·Filed 2009·Granted Nov 6, 2012·12 cites·4 claims
- 3773US7728545B2Equipment with a built-in fuel cellHITACHI LTD·Filed 2005·Granted Jun 1, 2010·14 cites·16 claims
- 3873US7626353B2Mobile type information terminal and self diagnosis method and operation method thereofHITACHI LTD·Filed 2005·Granted Dec 1, 2009·14 cites·5 claims
- 3973US5253156ASemiconductor integrated circuit unitHITACHI LTD·Filed 1991·Granted Oct 12, 1993·45 cites·5 claims
- 4070US10615715B2Power conversion device, cooling structure, power conversion system, and power supply deviceHITACHI LTD·Filed 2016·Granted Apr 7, 2020·2 cites·9 claims
- 4170US7245469B2DC backup power supply device and method for diagnosing the sameHITACHI COMP PERIPHERALS CO·Filed 2003·Granted Jul 17, 2007·27 cites·5 claims
- 4270US7170273B2Power-supply device and hard disk drive using sameHITACHI LTD·Filed 2004·Granted Jan 30, 2007·22 cites·17 claims
- 4368US9306472B2Power supply device operating switching elements of first and second switching legs to charge first and second capacitors to a voltage higher than a voltage crest value of an AC power supply and method of operating the power supply deviceHITACHI INFO & TELECOMM ENG·Filed 2014·Granted Apr 5, 2016·3 cites·11 claims
- 4468US7880440B2Switching power supplyHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Feb 1, 2011·8 cites·5 claims
- 4568US7692400B2Mobile type power supply, connection device, and carried type electronic equipmentHITACHI LTD·Filed 2007·Granted Apr 6, 2010·7 cites·8 claims
- 4668US6603671B2Synchronized rectifier voltage step down DC-DC converter and control circuit thereforHITACHI LTD·Filed 2001·Granted Aug 5, 2003·22 cites·22 claims
- 4767US9231424B2Charging systemKAWAGUCHI YUKI·Filed 2011·Granted Jan 5, 2016·4 cites·22 claims
- 4867US8153903B2Circuit board and image display apparatusKANOUDA AKIHIKO·Filed 2008·Granted Apr 10, 2012·6 cites·10 claims
- 4967US7977001B2Electronic equipment with fuel cell-power supply unitHITACHI LTD·Filed 2006·Granted Jul 12, 2011·2 cites·12 claims
- 5065US7800354B2Switching power supplyRENESAS TECH CORP·Filed 2008·Granted Sep 21, 2010·7 cites·6 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →