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Masahiro YATSU
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Patents Grants
last 30 patents
Information
Patent Grant
Power system operation assisting device and method, and oscillation...
Patent number
11,404,873
Issue date
Aug 2, 2022
Hitachi, Ltd.
Kenta Kirihara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power generation amount prediction apparatus, power generation amou...
Patent number
11,387,656
Issue date
Jul 12, 2022
Hitachi, Ltd.
Daichi Kato
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Operation support device and operation support method
Patent number
11,379,091
Issue date
Jul 5, 2022
Hitachi, Ltd.
Nao Saito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Voltage stability monitoring device and method
Patent number
11,349,311
Issue date
May 31, 2022
Hitachi, Ltd.
Eisuke Kuroda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power demand/supply adjustment power procurement plan support devic...
Patent number
11,342,750
Issue date
May 24, 2022
Hitachi, Ltd.
Toshiyuki Miyake
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power system stabilization device and power system stabilization me...
Patent number
11,256,278
Issue date
Feb 22, 2022
Hitachi, Ltd.
Daichi Kato
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System operation support device and method in power system, and wid...
Patent number
11,133,674
Issue date
Sep 28, 2021
Hitachi, Ltd.
Kenta Kirihara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Operation assistance device and operation assistance method
Patent number
11,048,246
Issue date
Jun 29, 2021
Hitachi, Ltd.
Nao Saito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System operation decision-making assistance device and method
Patent number
11,016,515
Issue date
May 25, 2021
Hitachi, Ltd.
Kenta Kirihara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Voltage and reactive power monitoring/control device and method for...
Patent number
10,892,640
Issue date
Jan 12, 2021
Hitachi, Ltd.
Eisuke Kuroda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus and method for stabilizing power system
Patent number
10,804,701
Issue date
Oct 13, 2020
Hitachi, Ltd.
Daichi Kato
G05 - CONTROLLING REGULATING
Information
Patent Grant
Voltage/reactive power control apparatus, method, and voltage/react...
Patent number
10,790,667
Issue date
Sep 29, 2020
Hitachi, Ltd.
Toshiyuki Miyake
G05 - CONTROLLING REGULATING
Information
Patent Grant
System stability monitoring device and system stability monitoring...
Patent number
10,628,896
Issue date
Apr 21, 2020
Hitachi Ltd.
Jun Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Voltage/reactive power operation assisting device and assisting met...
Patent number
10,581,245
Issue date
Mar 3, 2020
Hitachi, Ltd.
Eisuke Kuroda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage stability monitoring device and method
Patent number
10,473,700
Issue date
Nov 12, 2019
Hitachi, Ltd.
Eisuke Kuroda
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System stabilization control device and power system control system
Patent number
10,461,538
Issue date
Oct 29, 2019
Hitachi, Ltd.
Jun Yamazaki
G05 - CONTROLLING REGULATING
Information
Patent Grant
Device and method for controlling power system
Patent number
10,389,133
Issue date
Aug 20, 2019
Hitachi, Ltd.
Daichi Kato
G05 - CONTROLLING REGULATING
Information
Patent Grant
System stability monitoring apparatus and method
Patent number
10,371,592
Issue date
Aug 6, 2019
Hitachi, Ltd.
Jun Yamazaki
G01 - MEASURING TESTING
Information
Patent Grant
Electric power system monitoring device and electric power system m...
Patent number
10,222,196
Issue date
Mar 5, 2019
Hitachi, Ltd.
Jun Yamazaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power system monitoring apparatus, power system control apparatus,...
Patent number
10,193,385
Issue date
Jan 29, 2019
Hitachi, Ltd.
Yasuo Sato
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
POWER SYSTEM OPERATION ASSISTING DEVICE AND METHOD, AND OSCILLATION...
Publication number
20210126453
Publication date
Apr 29, 2021
Hitachi, Ltd
Kenta KIRIHARA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Operation Support Device and Operation Support Method
Publication number
20210103365
Publication date
Apr 8, 2021
Hitachi, Ltd
Nao SAITO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SYSTEM OPERATION SUPPORT DEVICE AND METHOD IN POWER SYSTEM, AND WID...
Publication number
20210083475
Publication date
Mar 18, 2021
Hitachi, Ltd
Kenta KIRIHARA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER GRID DECISION-MAKING SUPPORT DEVICE AND METHOD, AND SYSTEM AP...
Publication number
20200273120
Publication date
Aug 27, 2020
Hitachi, Ltd
Kenta KIRIHARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Power Generation Amount Prediction Apparatus, Power Generation Amou...
Publication number
20200266628
Publication date
Aug 20, 2020
Hitachi, Ltd
Daichi KATO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER SYSTEM STABILIZATION DEVICE AND POWER SYSTEM STABILIZATION ME...
Publication number
20190391609
Publication date
Dec 26, 2019
Hitachi, Ltd
Daichi KATO
G01 - MEASURING TESTING
Information
Patent Application
POWER DEMAND/SUPPLY ADJUSTMENT POWER PROCUREMENT PLAN SUPPORT DEVIC...
Publication number
20190372348
Publication date
Dec 5, 2019
Hitachi, Ltd
Toshiyuki MIYAKE
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER SYSTEM AGGREGATION DEVICE AND METHOD, AND POWER SYSTEM STABIL...
Publication number
20190288551
Publication date
Sep 19, 2019
Hitachi, Ltd
Akira TSUBOTA
G05 - CONTROLLING REGULATING
Information
Patent Application
VOLTAGE/REACTIVE POWER OPERATION ASSISTING DEVICE AND ASSISTING MET...
Publication number
20190280481
Publication date
Sep 12, 2019
Hitachi, Ltd
Eisuke KURODA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Apparatus and Method for Stabilizing Power System
Publication number
20190260205
Publication date
Aug 22, 2019
Hitachi, Ltd
Daichi KATO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SYSTEM OPERATION DECISION-MAKING ASSISTANCE DEVICE AND METHOD
Publication number
20190220051
Publication date
Jul 18, 2019
Hitachi, Ltd
Kenta KIRIHARA
G05 - CONTROLLING REGULATING
Information
Patent Application
Operation Assistance Device and Operation Assistance Method
Publication number
20190146468
Publication date
May 16, 2019
Hitachi, Ltd.
Nao SAITO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VOLTAGE AND REACTIVE POWER MONITORING/CONTROL DEVICE AND METHOD
Publication number
20190148977
Publication date
May 16, 2019
Hitachi, Ltd
Eisuke KURODA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Voltage Stability Monitoring Device and Method
Publication number
20180375329
Publication date
Dec 27, 2018
Hitachi, Ltd
Eisuke KURODA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Voltage/Reactive Power Control Apparatus, Method, and Voltage/React...
Publication number
20180351361
Publication date
Dec 6, 2018
Hitachi, Ltd
Toshiyuki MIYAKE
G05 - CONTROLLING REGULATING
Information
Patent Application
Device for Controlling Load Frequency and Method for Controlling Lo...
Publication number
20180262010
Publication date
Sep 13, 2018
Hitachi, Ltd
Daichi KATO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SYSTEM STABILIZATION CONTROL DEVICE AND POWER SYSTEM CONTROL SYSTEM
Publication number
20180054059
Publication date
Feb 22, 2018
Hitachi, Ltd
Jun YAMAZAKI
G01 - MEASURING TESTING
Information
Patent Application
Electric Power System Monitoring Device and Electric Power System M...
Publication number
20170292824
Publication date
Oct 12, 2017
Hitachi, Ltd
Jun YAMAZAKI
G01 - MEASURING TESTING
Information
Patent Application
SYSTEM STABILITY MONITORING DEVICE AND SYSTEM STABILITY MONITORING...
Publication number
20170278200
Publication date
Sep 28, 2017
Hitachi, Ltd
Jun YAMAZAKI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VOLTAGE STABILITY MONITORING DEVICE AND METHOD
Publication number
20170146574
Publication date
May 25, 2017
Hitachi, Ltd
Eisuke KURODA
G01 - MEASURING TESTING
Information
Patent Application
SYSTEM STABILITY MONITORING APPARATUS AND METHOD
Publication number
20170097271
Publication date
Apr 6, 2017
Hitachi, Ltd
Jun YAMAZAKI
G01 - MEASURING TESTING
Information
Patent Application
Voltage Stability Monitoring Device and Method
Publication number
20170045558
Publication date
Feb 16, 2017
Hitachi, Ltd
Eisuke KURODA
G01 - MEASURING TESTING
Information
Patent Application
POWER SYSTEM MONITORING APPARATUS, POWER SYSTEM CONTROL APPARATUS,...
Publication number
20160359363
Publication date
Dec 8, 2016
Hitachi, Ltd
Yasuo SATO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER