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Kabushiki Kaisha Gemvac

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arc-shield supporting structure of a vacuum power interrupter
    • Patent number RE31797
    • Issue date Jan 8, 1985
    • Kabushiki Kaisha Meidensha
    • Shinzo Sakuma
    • 200 - Electricity: circuit makers and breakers
  • Information Patent Grant

    Vacuum power interrupting device
    • Patent number 4,429,197
    • Issue date Jan 31, 1984
    • Kabushiki Kaisha Meidensha
    • Shinzo Sakuma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum power interrupter
    • Patent number 4,365,127
    • Issue date Dec 21, 1982
    • Kabushiki Kaishi Meidensha
    • Shinzo Sakuma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum power interrupter
    • Patent number 4,361,742
    • Issue date Nov 30, 1982
    • Kabushiki Kaisha Meidensha
    • Yoshiyuki Kashiwagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum circuit interrupter electrodes
    • Patent number 4,293,748
    • Issue date Oct 6, 1981
    • Kabushiki Kaisha Meidensha
    • Shinzo Sakuma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum power interrupter
    • Patent number 4,077,114
    • Issue date Mar 7, 1978
    • Kabushiki Kaisha Meidensha
    • Shinzo Sakuma
    • H01 - BASIC ELECTRIC ELEMENTS

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