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Katsuya Endo

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker unit and acoustic device
    • Patent number 10,674,273
    • Issue date Jun 2, 2020
    • Sony Corporation
    • Katsuya Endo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Horn speaker system
    • Patent number 5,933,508
    • Issue date Aug 3, 1999
    • Sony Corporation
    • Nobuo Fuke
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    SPEAKER UNIT AND ACOUSTIC DEVICE
    • Publication number 20190116425
    • Publication date Apr 18, 2019
    • SONY CORPORATION
    • KATSUYA ENDO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE