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Mamoru Tsuzurabara

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Patents Grantslast 30 patents

  • Information Patent Grant

    Cathode structure of electron tube
    • Patent number 4,558,250
    • Issue date Dec 10, 1985
    • Hitachi, Ltd.
    • Mamoru Tsuzurabara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of producing magnetrons
    • Patent number 4,445,873
    • Issue date May 1, 1984
    • Hitachi, Ltd.
    • Mamoru Tsuzurabara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetron
    • Patent number 4,419,606
    • Issue date Dec 6, 1983
    • Hitachi, Ltd.
    • Mamoru Tsuzurabara
    • H01 - BASIC ELECTRIC ELEMENTS