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Tadashi Sonobe

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  • Iwaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotating electric machine and cooling method thereof
    • Patent number 6,936,939
    • Issue date Aug 30, 2005
    • Hitachi, Ltd.
    • Kazumasa Ide
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating electric machine
    • Patent number 6,737,768
    • Issue date May 18, 2004
    • Hitachi, Ltd.
    • Kazumasa Ide
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Dynamo-electric machine
    • Patent number 6,724,107
    • Issue date Apr 20, 2004
    • Hitachi, Ltd.
    • Kazumasa Ide
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine with plural coolers in plural ventilation passages
    • Patent number 6,538,351
    • Issue date Mar 25, 2003
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric rotating machine
    • Patent number 6,426,578
    • Issue date Jul 30, 2002
    • Hitachi, Ltd.
    • Hideaki Mori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,359,351
    • Issue date Mar 19, 2002
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotary electric machine
    • Patent number 6,359,350
    • Issue date Mar 19, 2002
    • Hitachi, Ltd.
    • Masayuki Kaiho
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,316,852
    • Issue date Nov 13, 2001
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric rotary machine
    • Patent number 6,288,461
    • Issue date Sep 11, 2001
    • Hitachi, Ltd.
    • Hideaki Mori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,265,795
    • Issue date Jul 24, 2001
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,262,501
    • Issue date Jul 17, 2001
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,262,502
    • Issue date Jul 17, 2001
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric rotating machine with reduced thickness and volume of insu...
    • Patent number 6,242,825
    • Issue date Jun 5, 2001
    • Hitachi, Ltd.
    • Hideaki Mori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotating machine
    • Patent number 6,201,323
    • Issue date Mar 13, 2001
    • Hitachi, Ltd.
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Commutator apparatus for rotary electric machine
    • Patent number 4,331,897
    • Issue date May 25, 1982
    • Hitachi, Ltd.
    • Tadashi Sonobe
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Rotating electric machine and cooling method thereof
    • Publication number 20040189110
    • Publication date Sep 30, 2004
    • Kazumasa Ide
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Rotating electric machine and cooling method thereof
    • Publication number 20030020339
    • Publication date Jan 30, 2003
    • Kazumasa Ide
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Rotating machine
    • Publication number 20020101121
    • Publication date Aug 1, 2002
    • Akitomi Semba
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electric rotating machine
    • Publication number 20020070621
    • Publication date Jun 13, 2002
    • Hideaki Mori
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC