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Ryuta HASEGAWA
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Hino-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Neutral point power converter with first and second chopper cell gr...
Patent number
10,075,092
Issue date
Sep 11, 2018
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power conversion device and control method thereof
Patent number
9,887,617
Issue date
Feb 6, 2018
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control device of neutral-point-clamped power converter apparatus,...
Patent number
9,780,692
Issue date
Oct 3, 2017
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching element driving power supply circuit
Patent number
9,673,715
Issue date
Jun 6, 2017
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power conversion apparatus for vehicle and vehicle
Patent number
9,643,496
Issue date
May 9, 2017
Kabushiki Kaisha Toshiba
Yuusuke Kouno
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Over-voltage prevention device and current rectifying circuit
Patent number
9,548,685
Issue date
Jan 17, 2017
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power conversion apparatus
Patent number
9,450,509
Issue date
Sep 20, 2016
Kabushiki Kaisha Toshiba
Yuusuke Kouno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Generator excitation apparatus and power conversion system
Patent number
9,374,030
Issue date
Jun 21, 2016
Kabushiki Kaisha Toshiba
Katsuhisa Inagaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electric power converting device and electric power converting method
Patent number
9,287,797
Issue date
Mar 15, 2016
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inverter apparatus
Patent number
8,582,335
Issue date
Nov 12, 2013
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Inverter device, electric automobile in which the inverter device i...
Patent number
8,354,813
Issue date
Jan 15, 2013
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Temperature detection circuit
Patent number
7,969,227
Issue date
Jun 28, 2011
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERTER
Publication number
20170005590
Publication date
Jan 5, 2017
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF
Publication number
20160190908
Publication date
Jun 30, 2016
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING ELEMENT DRIVING POWER SUPPLY CIRCUIT
Publication number
20160141965
Publication date
May 19, 2016
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
CONTROL DEVICE OF NEUTRAL-POINT-CLAMPED POWER CONVERTER APPARATUS,...
Publication number
20160111975
Publication date
Apr 21, 2016
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
OVER-VOLTAGE PREVENTION DEVICE AND CURRENT RECTIFYING CIRCUIT
Publication number
20150214870
Publication date
Jul 30, 2015
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
GENERATOR EXCITATION APPARATUS AND POWER CONVERSION SYSTEM
Publication number
20150002106
Publication date
Jan 1, 2015
Kabushiki Kaisha Toshiba
Katsuhisa INAGAKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER CONVERSION APPARATUS FOR VEHICLE AND VEHICLE
Publication number
20140375121
Publication date
Dec 25, 2014
Kabushiki Kaisha Toshiba
Yuusuke KOUNO
B60 - VEHICLES IN GENERAL
Information
Patent Application
POWER CONVERSION APPARATUS
Publication number
20140203632
Publication date
Jul 24, 2014
Kabushiki Kaisha Toshiba
Yuusuke KOUNO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELECTRIC POWER CONVERTING DEVICE AND ELECTRIC POWER CONVERTING METHOD
Publication number
20140119068
Publication date
May 1, 2014
KABUSHIKI KAISHA TOSHIBA
Ryuta HASEGAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SEMICONDUCTOR POWER CONVERSION DEVICE
Publication number
20140085954
Publication date
Mar 27, 2014
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
INVERTER APPARATUS
Publication number
20120217795
Publication date
Aug 30, 2012
Kabushiki Kaisha Toshiba
Ryuta HASEGAWA
B60 - VEHICLES IN GENERAL
Information
Patent Application
TEMPERATURE DETECTION CIRCUIT
Publication number
20110032001
Publication date
Feb 10, 2011
Ryuta HASEGAWA
G01 - MEASURING TESTING
Information
Patent Application
INVERTER DEVICE, ELECTRIC AUTOMOBILE IN WHICH THE INVERTER DEVICE I...
Publication number
20100320951
Publication date
Dec 23, 2010
Kabushiki Kaisha Toshiba
Ryuta Hasegawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER