TREA

Shigeru Matsumoto

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  • Fukuyama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circuit breaker with leakage current detecting functions
    • Patent number 5,172,293
    • Issue date Dec 15, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Shigeru Matsumoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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