TREA

Yukio Hashimoto

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  • Ishigami-Niiza, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic timepiece
    • Patent number RE31402
    • Issue date Oct 4, 1983
    • Citizen Watch Co., Ltd.
    • Yukio Hashimoto
    • 368 - Horology: time measuring systems or devices
  • Information Patent Grant

    Voltage control circuit responsive to FET propagation time
    • Patent number 4,358,728
    • Issue date Nov 9, 1982
    • Citizen Watch Company Limited
    • Yukio Hashimoto
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,302,829
    • Issue date Nov 24, 1981
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,302,828
    • Issue date Nov 24, 1981
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,292,680
    • Issue date Sep 29, 1981
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic alarm timepiece
    • Patent number 4,270,194
    • Issue date May 26, 1981
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,262,351
    • Issue date Apr 14, 1981
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,236,241
    • Issue date Nov 25, 1980
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,150,535
    • Issue date Apr 24, 1979
    • Citizen Watch Company Limited
    • Shigeru Morokawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Frequency division circuit
    • Patent number 4,119,867
    • Issue date Oct 10, 1978
    • Citizen Watch Co. Ltd.
    • Shigeru Morokawa
    • G11 - INFORMATION STORAGE