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Patents Grants
last 30 patents
Information
Patent Grant
Synchrophasor measuring device and inter-bus-line phase angle diffe...
Patent number
8,198,904
Issue date
Jun 12, 2012
Mitsubishi Electric Corporation
Kempei Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Frequency measurement apparatus
Patent number
8,190,387
Issue date
May 29, 2012
Mitsubishi Electric Corporation
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Grant
AC electric quantity measuring device
Patent number
8,129,980
Issue date
Mar 6, 2012
Mitsubishi Electric Corporation
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Grant
Active filter
Patent number
7,701,090
Issue date
Apr 20, 2010
Mitsubishi Electric Corporation
Kempei Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rotation phase angle measuring device, and control-protecting devic...
Patent number
7,504,818
Issue date
Mar 17, 2009
Mitsubishi Electric Corporation
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Grant
Synchronous vector measuring device
Patent number
7,006,935
Issue date
Feb 28, 2006
Mitsubishi Denki Kabushiki Kaisha
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Grant
Frequency measuring device
Patent number
6,985,824
Issue date
Jan 10, 2006
TMT&D Corporation
Kempei Seki
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
ELECTRIC-QUANTITY MEASURING APPARATUS AND ELECTRIC-QUANTITY MEASURI...
Publication number
20150204920
Publication date
Jul 23, 2015
Mitsubishi Electric Corporation
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Application
ALTERNATING-CURRENT ELECTRICAL QUANTITY MEASURING APPARATUS AND ALT...
Publication number
20130338954
Publication date
Dec 19, 2013
MITSUBISHI ELECTRIC CORPORATION
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Application
SYNCHROPHASOR MEASURING DEVICE AND INTER-BUS-LINE PHASE ANGLE DIFFE...
Publication number
20100072978
Publication date
Mar 25, 2010
MITSUBISHI ELECTRIC CORPORATION
Kempei Seki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
AC ELECTRIC QUANTITY MEASURING DEVICE
Publication number
20100019758
Publication date
Jan 28, 2010
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Application
FREQUENCY MEASUREMENT APPARATUS
Publication number
20100010762
Publication date
Jan 14, 2010
Mitsubishi Electric Corporation
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Application
Active Filter
Publication number
20080174183
Publication date
Jul 24, 2008
Mitsubishi Electric Corporation
Kempei Seki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Rotation phase angle measuring device, and control-protecting devic...
Publication number
20070279039
Publication date
Dec 6, 2007
Mitsubishi Electric Corporation
Kempei Seki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Synchronous vector measuring device
Publication number
20050151532
Publication date
Jul 14, 2005
TMT&D CORPORATION
Kempei Seki
G01 - MEASURING TESTING
Information
Patent Application
Frequency measuring device
Publication number
20040243329
Publication date
Dec 2, 2004
TMT&D Corporation
Kempei Seki
G01 - MEASURING TESTING