TREA

Kazuyasu Tsunezumi

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earphone
    • Patent number 10,034,076
    • Issue date Jul 24, 2018
    • Sony Corporation
    • Tomohiro Matsuo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electronic appliance
    • Patent number 8,025,994
    • Issue date Sep 27, 2011
    • Sony Corporation
    • Yukinori Nishimaki
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    EARPHONE
    • Publication number 20170230741
    • Publication date Aug 10, 2017
    • TOMOHIRO MATSUO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRONIC APPLIANCE
    • Publication number 20080311467
    • Publication date Dec 18, 2008
    • SONY CORPORATION
    • Yukinori NISHIMAKI
    • H01 - BASIC ELECTRIC ELEMENTS