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Takashi SASE
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power-supply unit, hard-disk drive, and switching method of the pow...
Patent number
8,724,348
Issue date
May 13, 2014
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Supply device, and LED lighting equipment using the same
Patent number
8,654,551
Issue date
Feb 18, 2014
Hitachi, Ltd.
Takashi Sase
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Power converter, control method of power converter, and hard disk d...
Patent number
8,605,464
Issue date
Dec 10, 2013
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital control switching power-supply device and information proce...
Patent number
RE43946
Issue date
Jan 29, 2013
Hitachi, Ltd.
Takashi Sase
323 - Electricity: power supply or regulation systems
Information
Patent Grant
Power supplying apparatus including a pulse-width modulation oscill...
Patent number
8,305,065
Issue date
Nov 6, 2012
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply unit, hard disk drive and method of switching the powe...
Patent number
8,199,530
Issue date
Jun 12, 2012
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital control switching power-supply device and information proce...
Patent number
7,990,122
Issue date
Aug 2, 2011
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface device and information processing system
Patent number
7,759,975
Issue date
Jul 20, 2010
Hitachi, Ltd.
Fumio Murabayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Marginal check voltage setting means built-in power-supply device
Patent number
7,615,980
Issue date
Nov 10, 2009
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface device and information processing system
Patent number
7,479,804
Issue date
Jan 20, 2009
Hitachi, Ltd.
Fumio Murabayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Over-current detection circuit and method for power-supply device
Patent number
7,403,365
Issue date
Jul 22, 2008
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply
Patent number
7,385,380
Issue date
Jun 10, 2008
Renesas Technology Corp.
Takuya Ishigaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device and memory card using same
Patent number
7,268,611
Issue date
Sep 11, 2007
Renesas Technology Corporation
Mutsumi Kikuchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Power-supply device and hard disk drive using same
Patent number
7,170,273
Issue date
Jan 30, 2007
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply driver circuit
Patent number
7,138,786
Issue date
Nov 21, 2006
Renesas Technology Corp.
Takuya Ishigaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply device and switching power supply system
Patent number
7,109,693
Issue date
Sep 19, 2006
Renesas Technology Corp.
Shinichi Yoshida
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface device and information processing system
Patent number
7,102,388
Issue date
Sep 5, 2006
Hitachi, Ltd.
Fumio Murabayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching power supply device and switching power supply system
Patent number
7,091,711
Issue date
Aug 15, 2006
Renesas Technology Corp.
Shinichi Yoshida
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Resonant converter and control method thereof
Patent number
7,088,594
Issue date
Aug 8, 2006
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply device and switching power supply system
Patent number
6,979,985
Issue date
Dec 27, 2005
Renesas Technology Corp.
Shinichi Yoshida
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface device and information processing system
Patent number
6,977,522
Issue date
Dec 20, 2005
Hitachi, Ltd.
Fumio Murabayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase-locked loop circuit, information processing apparatus, and in...
Patent number
6,947,514
Issue date
Sep 20, 2005
Renesas Technology Corporation
Kazuo Kato
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power-supply device
Patent number
6,879,137
Issue date
Apr 12, 2005
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power-supply device
Patent number
6,798,180
Issue date
Sep 28, 2004
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interface device and interface system
Patent number
6,563,200
Issue date
May 13, 2003
Hitachi, Ltd.
Mutsumi Kikuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Waveform shaping device
Patent number
6,437,621
Issue date
Aug 20, 2002
Hitachi, Ltd.
Kazuo Kato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Soft start circuit for switching power supply
Patent number
6,377,480
Issue date
Apr 23, 2002
Hitachi, Ltd.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Complementary transistor circuit and amplifier and CRT display devi...
Patent number
5,757,233
Issue date
May 26, 1998
Hitachi, Ltd.
Kazuo Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Complementary transistor circuit and amplifier and CRT display devi...
Patent number
5,724,519
Issue date
Mar 3, 1998
Hitachi, Ltd.
Kazuo Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ultrasonic motor and driving for the ultrasonic motor
Patent number
5,631,517
Issue date
May 20, 1997
Hitachi, Ltd.
Kazuo Kato
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERTER, CONTROL METHOD OF POWER CONVERTER, AND HARD DISK D...
Publication number
20130194698
Publication date
Aug 1, 2013
HITACHI LTD.
Takashi SASE
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER-SUPPLY DEVICE, AND LED LIGHTING EQUIPMENT AND HARD DISK DRIVE...
Publication number
20120147494
Publication date
Jun 14, 2012
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Power-Supply Unit, Hard-Disk Drive, and Switching Method of the Pow...
Publication number
20110194206
Publication date
Aug 11, 2011
HITACHI, LTD.
Takashi SASE
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
POWER SUPPLY UNIT, HARD DISK DRIVE AND METHOD OF SWITCHING THE POWE...
Publication number
20100232180
Publication date
Sep 16, 2010
Hitachi, Ltd.
Takashi SASE
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Power Supplying Apparatus
Publication number
20100026262
Publication date
Feb 4, 2010
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
INTERFACE DEVICE AND INFORMATION PROCESSING SYSTEM
Publication number
20090115506
Publication date
May 7, 2009
Hitachi, Ltd
Fumio Murabayashi
G05 - CONTROLLING REGULATING
Information
Patent Application
POWER-SUPPLY DEVICE, IC CIRCUIT, AND INFORMATION PROCESSING APPARAT...
Publication number
20090021227
Publication date
Jan 22, 2009
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DIGITAL CONTROL SWITCHING POWER-SUPPLY DEVICE AND INFORMATION PROCE...
Publication number
20080252277
Publication date
Oct 16, 2008
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING POWER SUPPLY
Publication number
20070262761
Publication date
Nov 15, 2007
Takuya ISHIGAKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Over-current detection circuit and method for power-supply device
Publication number
20070188958
Publication date
Aug 16, 2007
HITACHI, LTD.
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Marginal check voltage setting means built-in power-supply device
Publication number
20070120540
Publication date
May 31, 2007
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING POWER SUPPLY DEVICE AND SWITCHING POWER SUPPLY SYSTEM
Publication number
20060158168
Publication date
Jul 20, 2006
Shinichi Yoshida
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Power supply driver circuit
Publication number
20060113979
Publication date
Jun 1, 2006
Takuya Ishigaki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Switching power supply device and switching power supply system
Publication number
20060091870
Publication date
May 4, 2006
RENESAS TECHNOLOGY CORP.
Shinichi Yoshida
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Semiconductior device and memory card using same
Publication number
20050237039
Publication date
Oct 27, 2005
Mutsumi Kikuchi
G11 - INFORMATION STORAGE
Information
Patent Application
Power-supply device and hard disk drive using same
Publication number
20050127881
Publication date
Jun 16, 2005
Takashi Sase
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Power-supply device
Publication number
20050127886
Publication date
Jun 16, 2005
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Resonant converter and control method thereof
Publication number
20050099827
Publication date
May 12, 2005
Hitachi Ltd.
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
POWER-SUPPLY DEVICE
Publication number
20050029997
Publication date
Feb 10, 2005
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Switching power supply device and switching power supply system
Publication number
20040004470
Publication date
Jan 8, 2004
Hitachi, Ltd.
Shinichi Yoshida
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Power-supply device
Publication number
20030231010
Publication date
Dec 18, 2003
Takashi Sase
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Interface device and information processing system
Publication number
20030117751
Publication date
Jun 26, 2003
Hitachi, Ltd
Fumio Murabayashi
G05 - CONTROLLING REGULATING
Information
Patent Application
Interface device and interface system
Publication number
20020105062
Publication date
Aug 8, 2002
Mutsumi Kikuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Waveform shaping device
Publication number
20010017560
Publication date
Aug 30, 2001
Kazuo Kato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...