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Takashi Kunimatsu
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light-emitting diode driving apparatus and semiconductor device
Patent number
9,131,563
Issue date
Sep 8, 2015
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Takashi Kunimatsu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Light-emitting diode driving apparatus and semiconductor device
Patent number
9,131,568
Issue date
Sep 8, 2015
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Takashi Kunimatsu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Switching power supply device and semiconductor device used for the...
Patent number
8,242,765
Issue date
Aug 14, 2012
Panasonic Corporation
Takashi Kunimatsu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply and semiconductor device used for the same
Patent number
8,120,343
Issue date
Feb 21, 2012
Panasonic Corporation
Takashi Kunimatsu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device
Patent number
7,919,818
Issue date
Apr 5, 2011
Panasonic Corporation
Saichiro Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Led driving semiconductor apparatus provided with controller includ...
Patent number
7,834,828
Issue date
Nov 16, 2010
Panasonic Corporation
Ryutaro Arakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor circuit for driving light emitting diode, and light e...
Patent number
7,830,097
Issue date
Nov 9, 2010
Panasonic Corporation
Takashi Kunimatsu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Light emitting diode drive apparatus
Patent number
7,638,954
Issue date
Dec 29, 2009
Panasonic Corporation
Takashi Kunimatsu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Reference supply voltage circuit using more than two reference supp...
Patent number
7,508,254
Issue date
Mar 24, 2009
Panasonic Corporation
Yoshiaki Hachiya
G05 - CONTROLLING REGULATING
Information
Patent Grant
Switching control circuit with off period adjustment
Patent number
7,439,719
Issue date
Oct 21, 2008
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hachiya
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply device
Patent number
7,348,766
Issue date
Mar 25, 2008
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hachiya
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor device
Patent number
7,145,223
Issue date
Dec 5, 2006
Matsushita Electric Industrial Co., Ltd.
Takashi Kunimatsu
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
LIGHT-EMITTING DIODE DRIVING APPARATUS AND SEMICONDUCTOR DEVICE
Publication number
20150077009
Publication date
Mar 19, 2015
Panasonic Intellectual Property Management Co., Ltd.
Takashi KUNIMATSU
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LIGHT-EMITTING DIODE DRIVING APPARATUS AND SEMICONDUCTOR DEVICE
Publication number
20150061524
Publication date
Mar 5, 2015
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD.
Takashi KUNIMATSU
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING POWER SUPPLY DEVICE AND SEMICONDUCTOR DEVICE USED FOR THE...
Publication number
20110057634
Publication date
Mar 10, 2011
PANASONIC CORPORATION
Takashi KUNIMATSU
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING POWER SUPPLY AND SEMICONDUCTOR DEVICE USED FOR THE SAME
Publication number
20090302816
Publication date
Dec 10, 2009
PANASONIC CORPORATION
Takashi KUNIMATSU
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SEMICONDUCTOR CIRCUIT FOR DRIVING LIGHT EMITTING DIODE, AND LIGHT E...
Publication number
20090224686
Publication date
Sep 10, 2009
Matsushita Electric Industrial Co., Ltd.
Takashi Kunimatsu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20080203533
Publication date
Aug 28, 2008
Saichiro KANEKO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor Device For Driving Led, And Led Driving
Publication number
20080018267
Publication date
Jan 24, 2008
Ryutaro Arakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Reference supply voltage circuit using more than two reference supp...
Publication number
20070229148
Publication date
Oct 4, 2007
Yoshiaki Hachiya
G05 - CONTROLLING REGULATING
Information
Patent Application
Switching control circuit
Publication number
20070176583
Publication date
Aug 2, 2007
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hachiya
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
LIGHT EMITTING DIODE DRIVE APPARATUS
Publication number
20070170874
Publication date
Jul 26, 2007
Matsushita Electric Industrial Co., Ltd.
Takashi KUNIMATSU
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Switching power supply device
Publication number
20060273662
Publication date
Dec 7, 2006
Yoshiaki Hachiya
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Semiconductor device
Publication number
20030218241
Publication date
Nov 27, 2003
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Takashi Kunimatsu
H01 - BASIC ELECTRIC ELEMENTS