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Toshifumi Sakai

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power conversion device
    • Patent number 9,350,284
    • Issue date May 24, 2016
    • Hitachi, Ltd.
    • Toshifumi Sakai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Driving system of permanent magnet synchronous motor
    • Patent number 8,541,971
    • Issue date Sep 24, 2013
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Toshifumi Sakai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Power Conversion Device
    • Publication number 20140340005
    • Publication date Nov 20, 2014
    • Toshifumi Sakai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Driving system of permanent magnet synchronous motor
    • Publication number 20110050140
    • Publication date Mar 3, 2011
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Toshifumi Sakai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER