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Fumihisa Ichikawa

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    DC power supply circuit
    • Patent number 5,576,580
    • Issue date Nov 19, 1996
    • Hitachi, Ltd.
    • Minoru Hosoda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Commutating type DC circuit breaker arrangement
    • Patent number 5,402,297
    • Issue date Mar 28, 1995
    • Hitachi, Ltd.
    • Shigetoshi Ouchi
    • H01 - BASIC ELECTRIC ELEMENTS