TREA

Masae Ohkubo

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  • Niiza, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Analog quartz timepiece
    • Patent number 4,261,048
    • Issue date Apr 7, 1981
    • Citizen Watch Company Limited
    • Jinro Motoki
    • G04 - HOROLOGY
  • Information Patent Grant

    Analog quartz timepiece
    • Patent number 4,173,863
    • Issue date Nov 13, 1979
    • Citizen Watch Company Limited
    • Jinro Motoki
    • G04 - HOROLOGY