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Yoshiaki Matsumoto

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  • Fukuyama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Residual current operated circuit-breaker
    • Patent number D334174
    • Issue date Mar 23, 1993
    • Mitsubishi Denki Kabushiki Kaisha
    • Setsuo Hosogai
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Circuit breaker
    • Patent number 4,724,411
    • Issue date Feb 9, 1988
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshiaki Matsumoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 4,695,814
    • Issue date Sep 22, 1987
    • Mitsubishi Denki Kabushiki Kaisha
    • Matsumoto Yoshiaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Automatic trip device for circuit interrupter
    • Patent number 4,344,055
    • Issue date Aug 10, 1982
    • Mitsubishi Denki Kabushiki Kaisha
    • Haruhisa Toda
    • H01 - BASIC ELECTRIC ELEMENTS