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Yutaka Suzuki
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Power supply control system
Patent number
5,297,015
Issue date
Mar 22, 1994
Hitachi, Ltd.
Hideki Miyazaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Parallel circuit module including a diode and an IGBT
Patent number
5,274,541
Issue date
Dec 28, 1993
Hitachi, Ltd.
Shin Kimura
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Drive circuit for an insulated gate transistor having overcurrent d...
Patent number
5,210,479
Issue date
May 11, 1993
Hitachi, Ltd.
Shin Kimura
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power factor improving apparatus for power converter
Patent number
4,306,283
Issue date
Dec 15, 1981
Hitachi, Ltd.
Hisakatsu Kiwaki
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Power supply system for linear motor
Patent number
4,303,870
Issue date
Dec 1, 1981
Hitachi, Ltd.
Kiyoshi Nakamura
B60 - VEHICLES IN GENERAL
Information
Patent Grant
High harmonic current reducing apparatus in power converter
Patent number
4,122,515
Issue date
Oct 24, 1978
Hitachi, Ltd.
Kyozo Tachibana
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER