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Katsumi Maekawa
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Saitama-ken, JP
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Patents Grants
last 30 patents
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Patent Grant
Inverter control device and AC motor control device using this inve...
Patent number
8,274,246
Issue date
Sep 25, 2012
Kabushiki Kaisha Toshiba
Katsumi Maekawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control system for synchronous machine
Patent number
7,312,594
Issue date
Dec 25, 2007
Kabushiki Kaisha Toshiba
Kazuya Yasui
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inverter controller
Patent number
5,942,876
Issue date
Aug 24, 1999
Kabushiki Kaisha Toshiba
Katsumi Maekawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PWM controller having synchronous and asynchronous mode
Patent number
4,860,186
Issue date
Aug 22, 1989
Kabushiki Kaisha Toshiba
Katsumi Maekawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital PWM control circuit
Patent number
4,727,468
Issue date
Feb 23, 1988
Kabushiki Kaisha Toshiba
Katsumi Maekawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
INVERTER CONTROL DEVICE AND AC MOTOR CONTROL DEVICE USING THIS INVE...
Publication number
20100109583
Publication date
May 6, 2010
Kabushiki Kaisha Toshiba
Katsumi Maekawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Control system for synchronous machine
Publication number
20060097686
Publication date
May 11, 2006
Kabushiki Kaisha Toshiba
Kazuya Yasui
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER