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Inverter device
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Patent number 5,091,823
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Issue date Feb 25, 1992
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Hitachi, Ltd.
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Takatsugu Kanbara
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Control system for PWM inverter
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Patent number 4,767,976
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Issue date Aug 30, 1988
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Hitachi, Ltd.
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Nobuyoshi Mutoh
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Control apparatus for AC motors
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Patent number 4,516,065
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Issue date May 7, 1985
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Hitachi, Ltd.
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Hisakazu Ninomiya
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Apparatus for controlling AC motor
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Patent number 4,451,771
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Issue date May 29, 1984
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Hitachi, Ltd.
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Hiroshi Nagase
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER