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KenEdward KAWAKITA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power system stability analysis device, stabilization apparatus, an...
Patent number
11,121,553
Issue date
Sep 14, 2021
Hitachi, Ltd.
Yuki Tsujii
G05 - CONTROLLING REGULATING
Information
Patent Grant
Power flow monitoring device for power system, power system stabili...
Patent number
11,088,569
Issue date
Aug 10, 2021
Hitachi, Ltd.
Yuki Tsujii
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power system status estimation device and status estimation method
Patent number
11,042,134
Issue date
Jun 22, 2021
Hitachi, Ltd.
Masahiro Watanabe
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
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Patent Application
POWER SYSTEM STABILITY ANALYSIS DEVICE, STABILIZATION APPARATUS, AN...
Publication number
20200251902
Publication date
Aug 6, 2020
Hitachi, Ltd
Yuki TSUJII
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Power Flow Monitoring Device for Power System, Power System Stabili...
Publication number
20190237997
Publication date
Aug 1, 2019
Hitachi, Ltd
Yuki TSUJII
G05 - CONTROLLING REGULATING
Information
Patent Application
Power System Status Estimation Device and Status Estimation Method
Publication number
20190235452
Publication date
Aug 1, 2019
Hitachi, Ltd
Masahiro WATANABE
G06 - COMPUTING CALCULATING COUNTING