Inventor
SASE TAKASHI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “SASE TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
25 patentsUS6879137B2Apr 12, 2005
Power-supply device
HITACHI LTD114 citations98
US6798180B2Sep 28, 2004
Power-supply device
HITACHI LTD48 citations96
US7170273B2Jan 30, 2007
Power-supply device and hard disk drive using same
HITACHI LTD22 citations92
US7102388B2Sep 5, 2006
Interface device and information processing system
HITACHI LTD30 citations92
US6977522B1Dec 20, 2005
Interface device and information processing system
HITACHI LTD30 citations92
US6377480B1Apr 23, 2002
Soft start circuit for switching power supply
HITACHI LTD45 citations92
US5724519AMar 3, 1998
Complementary transistor circuit and amplifier and CRT display device using the same
HITACHI LTD28 citations92
US4774480ASep 27, 1988
Phase-locked loop having separate smoothing and loop filters
HITACHI LTD31 citations92
US4749961AJun 7, 1988
Voltage controlled oscillator and phase-locked loop using it
HITACHI LTD26 citations92
US7990122B2Aug 2, 2011
Digital control switching power-supply device and information processing equipment
HITACHI LTD28 citations91
US5631517AMay 20, 1997
Ultrasonic motor and driving for the ultrasonic motor
HITACHI LTD22 citations87
US7403365B2Jul 22, 2008
Over-current detection circuit and method for power-supply device
HITACHI LTD12 citations83
USRE43946EJan 29, 2013
Digital control switching power-supply device and information processing equipment
HITACHI LTD6 citations82
US4396890AAug 2, 1983
Variable gain amplifier
HITACHI LTD23 citations82
US7088594B2Aug 8, 2006
Resonant converter and control method thereof
HITACHI LTD15 citations80
US5757233AMay 26, 1998
Complementary transistor circuit and amplifier and CRT display device using the same
HITACHI LTD14 citations74
US4178554ADec 11, 1979
Phase difference detector
HITACHI LTD13 citations73
US4086541AApr 25, 1978
Time division multiplexing amplifier
HITACHI LTD18 citations70
US4025849AMay 24, 1977
Method of measuring analog input voltages through isolation transformers and apparatus for the same
HITACHI LTD7 citations66
US7759975B2Jul 20, 2010
Interface device and information processing system
HITACHI LTD1 citations62
US7615980B2Nov 10, 2009
Marginal check voltage setting means built-in power-supply device
HITACHI LTD2 citations62
US5459378AOct 17, 1995
CRT display apparatus
HITACHI LTD5 citations62
US7479804B2Jan 20, 2009
Interface device and information processing system
HITACHI LTD0 citations52
US6563200B2May 13, 2003
Interface device and interface system
HITACHI LTD0 citations52
US6437621B2Aug 20, 2002
Waveform shaping device
HITACHI LTD1 citations52
RENESAS TECH CORP
7 patentsUS7385380B2Jun 10, 2008
Switching power supply
RENESAS TECH CORP202 citations98
US7138786B2Nov 21, 2006
Power supply driver circuit
RENESAS TECH CORP227 citations98
US6979985B2Dec 27, 2005
Switching power supply device and switching power supply system
RENESAS TECH CORP74 citations96
US7109693B2Sep 19, 2006
Switching power supply device and switching power supply system
RENESAS TECH CORP49 citations94
US6947514B1Sep 20, 2005
Phase-locked loop circuit, information processing apparatus, and information processing system
RENESAS TECH CORP29 citations92
US7091711B2Aug 15, 2006
Switching power supply device and switching power supply system
RENESAS TECH CORP20 citations91
US7268611B2Sep 11, 2007
Semiconductor device and memory card using same
RENESAS TECH CORP19 citations84
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