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Koji Tsukashima

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter circuit and balun circuit
    • Patent number 11,646,711
    • Issue date May 9, 2023
    • Sumitomo Electric Industries, Ltd.
    • Koji Tsukashima
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electronic device
    • Patent number 9,543,630
    • Issue date Jan 10, 2017
    • Sumitomo Electric Industries, Ltd
    • Tsuneo Tokumitsu
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Electronic circuit
    • Patent number 8,421,537
    • Issue date Apr 16, 2013
    • Sumitomo Electric Industries, Ltd.
    • Koji Tsukashima
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    SEMICONDUCTOR DEVICE
    • Publication number 20240387416
    • Publication date Nov 21, 2024
    • Sumitomo Electric Industries, Ltd.
    • Koji TSUKASHIMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    FILTER CIRCUIT AND BALUN CIRCUIT
    • Publication number 20220069794
    • Publication date Mar 3, 2022
    • Sumitomo Electric Industries, Ltd.
    • Koji TSUKASHIMA
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    ELECTRONIC DEVICE
    • Publication number 20150364805
    • Publication date Dec 17, 2015
    • Sumitomo Electric Industries, Ltd.
    • Tsuneo TOKUMITSU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRONIC CIRCUIT
    • Publication number 20120133441
    • Publication date May 31, 2012
    • Sumitomo Electric Industries, Ltd.
    • Koji Tsukashima
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    SIGNAL TRANSMISSION LINE
    • Publication number 20110241803
    • Publication date Oct 6, 2011
    • Sumitomo Electric Industries, Ltd.
    • Koji Tsukashima
    • H01 - BASIC ELECTRIC ELEMENTS