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Takemasa Ogawa

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas insulated switchgear
    • Patent number 6,624,372
    • Issue date Sep 23, 2003
    • Hitachi, Ltd.
    • Takemasa Ogawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Gas insulation switchgear
    • Publication number 20020070199
    • Publication date Jun 13, 2002
    • Hitachi, Ltd.
    • Takemasa Ogawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Gas insulation switchgear
    • Publication number 20020070200
    • Publication date Jun 13, 2002
    • Hitachi, Ltd.
    • Takemasa Ogawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER