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Yoriyuki Aiko

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas insulated switchgear
    • Patent number 6,560,091
    • Issue date May 6, 2003
    • Hitachi, Ltd.
    • Masahiro Takahoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Gas insulated switchgear
    • Patent number 6,556,428
    • Issue date Apr 29, 2003
    • Hitachi, Ltd.
    • Masahiro Takahoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Gas insulated switchgear equipment
    • Patent number 4,503,481
    • Issue date Mar 5, 1985
    • Hitachi, Ltd.
    • Sigeru Fujiya
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER