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Toshiaki SAKUYAMA

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas circuit breaker
    • Patent number 10,916,394
    • Issue date Feb 9, 2021
    • Hitachi, Ltd.
    • Toshiaki Sakuyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas circuit breaker
    • Patent number 10,699,863
    • Issue date Jun 30, 2020
    • Hitachi, Ltd.
    • Toshiaki Sakuyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas circuit breaker
    • Patent number 10,354,821
    • Issue date Jul 16, 2019
    • Hitachi, Ltd.
    • Toshiaki Sakuyama
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Gas Circuit Breaker
    • Publication number 20200279705
    • Publication date Sep 3, 2020
    • Hitachi, Ltd
    • Toshiaki SAKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    GAS CIRCUIT BREAKER
    • Publication number 20190287746
    • Publication date Sep 19, 2019
    • Hitachi, Ltd
    • Toshiaki SAKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    GAS CIRCUIT BREAKER
    • Publication number 20180277323
    • Publication date Sep 27, 2018
    • Hitachi, Ltd
    • Toshiaki SAKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Gas Circuit Breaker
    • Publication number 20150380188
    • Publication date Dec 31, 2015
    • Hitachi, Ltd
    • Toshiaki SAKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS