Inventor
KANOUDA AKIHIKO
JP73 patents
⚠️ This page may combine multiple inventors who share the name “KANOUDA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
30 patentsUS5768117AJun 16, 1998
Power supply system for supplying electric power to a load through plural converters
HITACHI LTD167 citations99
US5412558AMay 2, 1995
Semiconductor integrated circuit unit
HITACHI LTD187 citations99
US7883808B2Feb 8, 2011
Power supply apparatus with fuel cell and method of controlling the same
HITACHI LTD152 citations98
US6879137B2Apr 12, 2005
Power-supply device
HITACHI LTD114 citations98
US5280228AJan 18, 1994
Inverter circuit
HITACHI LTD115 citations98
US6798180B2Sep 28, 2004
Power-supply device
HITACHI LTD48 citations96
US6489756B2Dec 3, 2002
DC-DC converter with switchable control mode
HITACHI LTD63 citations96
US6580597B2Jun 17, 2003
Voltage regulator module for micro processor and CPO using a super capacitor
HITACHI LTD48 citations95
US5008586AApr 16, 1991
Solid state current sensing circuit and protection circuit
HITACHI LTD54 citations93
US7638904B2Dec 29, 2009
Isolated bidirectional DC-DC converter
HITACHI LTD40 citations92
US7551462B2Jun 23, 2009
Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformer
HITACHI LTD25 citations92
US7432617B2Oct 7, 2008
Uninterruptible power system
HITACHI LTD22 citations92
US7170273B2Jan 30, 2007
Power-supply device and hard disk drive using same
HITACHI LTD22 citations92
US6603671B2Aug 5, 2003
Synchronized rectifier voltage step down DC-DC converter and control circuit therefor
HITACHI LTD22 citations92
US5638264AJun 10, 1997
Parallelized power supply system providing uninterrupted operation
HITACHI LTD40 citations92
US5559682ASep 24, 1996
Multi-output DC-DC convertor
HITACHI LTD30 citations92
US5253156AOct 12, 1993
Semiconductor integrated circuit unit
HITACHI LTD45 citations92
US7495415B2Feb 24, 2009
DC backup power supply system
HITACHI LTD50 citations91
US6567261B2May 20, 2003
DC-DC step-down converter with super capacitor
HITACHI LTD37 citations91
US5502430AMar 26, 1996
Flat transformer and power supply unit having flat transformer
HITACHI LTD41 citations91
US7667350B2Feb 23, 2010
Electric power source apparatus using fuel cell and method of controlling the same
HITACHI LTD15 citations84
US7557546B2Jul 7, 2009
Unidirectional DC-DC converter
HITACHI LTD13 citations83
US7403365B2Jul 22, 2008
Over-current detection circuit and method for power-supply device
HITACHI LTD12 citations83
US7728545B2Jun 1, 2010
Equipment with a built-in fuel cell
HITACHI LTD14 citations82
US7626353B2Dec 1, 2009
Mobile type information terminal and self diagnosis method and operation method thereof
HITACHI LTD14 citations80
US7088594B2Aug 8, 2006
Resonant converter and control method thereof
HITACHI LTD15 citations80
US7846568B2Dec 7, 2010
Power supply and control method therefor
HITACHI LTD7 citations74
US5057721AOct 15, 1991
Level shift circuit for controlling a driving circuit
HITACHI LTD13 citations74
US7692400B2Apr 6, 2010
Mobile type power supply, connection device, and carried type electronic equipment
HITACHI LTD7 citations73
US5642269AJun 24, 1997
Power supply apparatus having separate plural outputs
HITACHI LTD8 citations72
HITACHI COMP PERIPHERALS CO
9 patentsUS7157810B2Jan 2, 2007
Backup power supply
HITACHI COMP PERIPHERALS CO47 citations96
US6977448B2Dec 20, 2005
Backup power supply
HITACHI COMP PERIPHERALS CO46 citations96
US7840840B2Nov 23, 2010
DC backup power supply system, a disk array and a DC backup power supply
HITACHI COMP PERIPHERALS CO25 citations92
US7589436B2Sep 15, 2009
Data processing unit and DC backup power supply
HITACHI COMP PERIPHERALS CO30 citations92
US7049711B2May 23, 2006
Uninterruptible power system
HITACHI COMP PERIPHERALS CO24 citations92
US7245469B2Jul 17, 2007
DC backup power supply device and method for diagnosing the same
HITACHI COMP PERIPHERALS CO27 citations91
US7406623B2Jul 29, 2008
DC backup power supply system and disk array using same
HITACHI COMP PERIPHERALS CO27 citations90
US7880440B2Feb 1, 2011
Switching power supply
HITACHI COMP PERIPHERALS CO8 citations84
US7705562B2Apr 27, 2010
Switching power supply unit and disk array system
HITACHI COMP PERIPHERALS CO15 citations83
SASE TAKASHI
5 patentsUS8724348B2May 13, 2014
Power-supply unit, hard-disk drive, and switching method of the power-supply unit
SASE TAKASHI14 citations83
US8654551B2Feb 18, 2014
Supply device, and LED lighting equipment using the same
SASE TAKASHI8 citations83
US8605464B2Dec 10, 2013
Power converter, control method of power converter, and hard disk drive
SASE TAKASHI10 citations83
US8305065B2Nov 6, 2012
Power supplying apparatus including a pulse-width modulation oscillator and smoothing filters
SASE TAKASHI12 citations83
US8199530B2Jun 12, 2012
Power supply unit, hard disk drive and method of switching the power supply unit
SASE TAKASHI16 citations83
RENESAS TECH CORP
4 patentsUS7385380B2Jun 10, 2008
Switching power supply
RENESAS TECH CORP202 citations98
US7138786B2Nov 21, 2006
Power supply driver circuit
RENESAS TECH CORP227 citations98
US7268611B2Sep 11, 2007
Semiconductor device and memory card using same
RENESAS TECH CORP19 citations84
US7800354B2Sep 21, 2010
Switching power supply
RENESAS TECH CORP7 citations73
URUNO JUNPEI
1 patentIWASAWA HIROSHI
1 patentShowing the top 50 of 73 patents by PatentIndex Score.