TREA

Yumi SHIMAZAKI

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone
    • Patent number 10,511,900
    • Issue date Dec 17, 2019
    • Kabushiki Kaisha Audio Technica
    • Daisuke Yoneyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Noise-cancelling headphone
    • Patent number 10,249,287
    • Issue date Apr 2, 2019
    • Kabushiki Kaisha Audio Technica
    • Koji Otsuka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Noise-cancelling headphone
    • Patent number 10,204,615
    • Issue date Feb 12, 2019
    • Kabushiki Kaisha Audio Technica
    • Koji Otsuka
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Noise-cancelling headphone
    • Patent number 9,959,858
    • Issue date May 1, 2018
    • Kabushiki Kaisha Audio Technica
    • Koji Otsuka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Noise-cancelling headphone
    • Patent number 9,913,020
    • Issue date Mar 6, 2018
    • Kabushiki Kaisha Audio Technica
    • Koji Otsuka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Headphone
    • Publication number 20180366100
    • Publication date Dec 20, 2018
    • KABUSHIKI KAISHA AUDIO-TECHNICA
    • Koji Otsuka
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    HEADPHONE
    • Publication number 20180352318
    • Publication date Dec 6, 2018
    • KABUSHIKI KAISHA AUDIO-TECHNICA
    • Daisuke YONEYAMA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NOISE-CANCELLING HEADPHONE
    • Publication number 20180068648
    • Publication date Mar 8, 2018
    • KABUSHIKI KAISHA AUDIO-TECHNICA
    • Koji OTSUKA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    NOISE-CANCELLING HEADPHONE
    • Publication number 20170040013
    • Publication date Feb 9, 2017
    • KABUSHIKI KAISHA AUDIO-TECHNICA
    • Koji OTSUKA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    NOISE-CANCELLING HEADPHONE
    • Publication number 20170026737
    • Publication date Jan 26, 2017
    • KABUSHIKI KAISHA AUDIO-TECHNICA
    • Koji OTSUKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE