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Akira Kikuyama

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  • Ena, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    High precision timepiece pace measuring device
    • Patent number 4,028,927
    • Issue date Jun 14, 1977
    • Ricoh Watch Co., Ltd.
    • Akira Kikuyama
    • G04 - HOROLOGY
  • Information Patent Grant

    Pulse motor
    • Patent number 3,989,967
    • Issue date Nov 2, 1976
    • Citizen Watch Co., Ltd.
    • Akira Kikuyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER