TREA

Masahiko Fujita

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas-insulated vacuum circuit breaker
    • Patent number 8,592,708
    • Issue date Nov 26, 2013
    • Hitachi, Ltd.
    • Hayato Hatanaka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Tape drive device
    • Patent number 4,303,210
    • Issue date Dec 1, 1981
    • Hitachi, Ltd.
    • Masahiko Fujita
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Electric motor having frequency generator
    • Patent number 4,109,170
    • Issue date Aug 22, 1978
    • Hitachi, Ltd.
    • Masahiko Fujita
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    GAS-INSULATED VACUUM CIRCUIT BREAKER
    • Publication number 20120061353
    • Publication date Mar 15, 2012
    • JAPAN AE POWER SYSTEMS CORPORATION
    • Hayato Hatanaka
    • H01 - BASIC ELECTRIC ELEMENTS