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Youichi Yokoyama

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Remotely controllable circuit breaker with improved arc drive struc...
    • Patent number 5,164,693
    • Issue date Nov 17, 1992
    • Electric Power Research Institute, Inc.
    • Youichi Yokoyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Remotely controllable circuit breaker
    • Patent number 4,897,625
    • Issue date Jan 30, 1990
    • Electric Power Research Institute, Inc.
    • Youichi Yokoyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Remote control system circuit breaker
    • Patent number RE32882
    • Issue date Mar 7, 1989
    • Matsushita Electric Works, Ltd.
    • Youichi Yokoyama
    • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • Information Patent Grant

    Timer controlled multipole circuit breaker
    • Patent number 4,754,162
    • Issue date Jun 28, 1988
    • Matsushita Electric Works, Ltd.
    • Hideya Kondou
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 4,382,240
    • Issue date May 3, 1983
    • Matsushita Electric Works, Ltd.
    • Hideya Kondo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 4,370,634
    • Issue date Jan 25, 1983
    • Matsushita Electric Works, Ltd.
    • Hideya Kondo
    • H01 - BASIC ELECTRIC ELEMENTS