TREA

Toshimasa Maruyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Switchgear
    • Patent number 6,295,192
    • Issue date Sep 25, 2001
    • Mitsubishi Denki Kabushiki Kaisha
    • Yukimori Kishida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric power supply system for load
    • Patent number 6,051,893
    • Issue date Apr 18, 2000
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Yamamoto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switchgear
    • Patent number 6,046,423
    • Issue date Apr 4, 2000
    • Mitsubishi Denki Kabushiki Kaisha
    • Yukimori Kishida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Arc-extinguisher of a switch
    • Patent number 5,077,453
    • Issue date Dec 31, 1991
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Hasegawa
    • H01 - BASIC ELECTRIC ELEMENTS