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Yoshihiro Ashizaki

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  • Katano, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spindle motor
    • Patent number 7,420,309
    • Issue date Sep 2, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Akihiko Wakitani
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Spindle motor
    • Patent number 7,321,178
    • Issue date Jan 22, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Akihiko Wakitani
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Hydrodynamic bearing device and motor
    • Patent number 7,284,908
    • Issue date Oct 23, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Takeyoshi Yamamoto
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Stepper motor with a rotor teeth sensor
    • Patent number 4,970,423
    • Issue date Nov 13, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroaki Tamae
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Three-phase current output circuit with temperature compensating fu...
    • Patent number 4,868,485
    • Issue date Sep 19, 1989
    • Matsushita Electric Industrial Co., Ltd.
    • Yoshihiro Ashizaki
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    IC output circuit for use in pulse width modulator
    • Patent number 4,831,344
    • Issue date May 16, 1989
    • Matsushita Electric Industrial Co., Ltd.
    • Yoshihiro Ashizaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Brushless motor having phase advance
    • Patent number 4,818,908
    • Issue date Apr 4, 1989
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroaki Tamae
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Spindle motor
    • Publication number 20080129139
    • Publication date Jun 5, 2008
    • Akihiko Wakitani
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Spindle motor
    • Publication number 20070013255
    • Publication date Jan 18, 2007
    • Akihiko Wakitani
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Hydrodynamic bearing device and motor
    • Publication number 20060056750
    • Publication date Mar 16, 2006
    • Takeyoshi Yamamoto
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...