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Takayasu Machida

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  • Iruma-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-pole step motor for timepiece
    • Patent number 6,774,513
    • Issue date Aug 10, 2004
    • Citizen Watch Co., Ltd.
    • Shigeyuki Takahashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2-Pole stepper motor for timepiece
    • Patent number 6,548,922
    • Issue date Apr 15, 2003
    • Citizen Watch Co., Ltd.
    • Shigeyuki Takahashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method of manufacturing hand for analog electronic timepiece
    • Patent number 6,519,853
    • Issue date Feb 18, 2003
    • Citizen Watch Co., Ltd.
    • Takayasu Machida
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Analog electronic timepiece
    • Patent number 6,434,086
    • Issue date Aug 13, 2002
    • Citizen Watch Co., Ltd.
    • Kazuo Suzuki
    • G04 - HOROLOGY
  • Information Patent Grant

    Floppy disk drive having a pivotally supporting cartridge carrier
    • Patent number 4,750,063
    • Issue date Jun 7, 1988
    • Citizen Watch Co., Ltd.
    • Kazunari Kume
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Carriage device for moving and positioning magnetic head
    • Patent number 4,590,529
    • Issue date May 20, 1986
    • Citizen Watch Co., Ltd.
    • Akira Nikaido
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Micro stepping motor
    • Patent number 4,558,244
    • Issue date Dec 10, 1985
    • Citizen Watch Co., Ltd.
    • Akira Nikaido
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Drive system for pulse motor
    • Patent number 4,361,410
    • Issue date Nov 30, 1982
    • Citizen Watch Company Ltd.
    • Fumio Nakajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Drive control system for stepping motor
    • Patent number 4,283,783
    • Issue date Aug 11, 1981
    • Citizen Watch Company Limited
    • Fumio Nakajima
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,223,522
    • Issue date Sep 23, 1980
    • Citizen Watch Co., Ltd.
    • Yasushi Nomura
    • G04 - HOROLOGY
  • Information Patent Grant

    Motor and drive for a timepiece
    • Patent number 4,199,699
    • Issue date Apr 22, 1980
    • Citizen Watch Co., Ltd.
    • Kazunari Kume
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Driver circuit for electro-mechanical transducer
    • Patent number 4,158,287
    • Issue date Jun 19, 1979
    • Citizen Watch Company Limited
    • Fumio Nakajima
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,150,536
    • Issue date Apr 24, 1979
    • Citizen Watch Company Limited
    • Fumio Nakajima
    • G04 - HOROLOGY
  • Information Patent Grant

    Pulse motor
    • Patent number 4,144,467
    • Issue date Mar 13, 1979
    • Citizen Watch Co., Ltd.
    • Fumio Nakajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,129,981
    • Issue date Dec 19, 1978
    • Citizen Watch Company Limited
    • Yasushi Nomura
    • G04 - HOROLOGY

Patents Applicationslast 30 patents

  • Information Patent Application

    Two-pole step motor for timepiece
    • Publication number 20030197434
    • Publication date Oct 23, 2003
    • Citizen Watch Co., Ltd.
    • Shigeyuki Takahashi
    • G04 - HOROLOGY