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Hiromichi Ozawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Acoustic diaphragm, method of manufacturing acoustic diaphragm, and...
    • Patent number 11,665,478
    • Issue date May 30, 2023
    • Audio-Technica Corporation
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic diaphragm, method of manufacturing acoustic diaphragm, and...
    • Patent number 11,317,214
    • Issue date Apr 26, 2022
    • Audio-Technica Corporation
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone
    • Patent number 10,687,133
    • Issue date Jun 16, 2020
    • Audio-Technica Corporation
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphones
    • Patent number 10,028,048
    • Issue date Jul 17, 2018
    • AUDIO-TECHNICA CORPORATION
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earphone
    • Patent number 8,712,087
    • Issue date Apr 29, 2014
    • Kabushiki Kaisha Audio Technica
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTROACOUSTIC TRANSDUCER
    • Publication number 20240406637
    • Publication date Dec 5, 2024
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC DIAPHRAGM, METHOD OF MANUFACTURING ACOUSTIC DIAPHRAGM, AND...
    • Publication number 20210329383
    • Publication date Oct 21, 2021
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    WIRELESS EARPHONE
    • Publication number 20210136477
    • Publication date May 6, 2021
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC DIAPHRAGM, METHOD OF MANUFACTURING ACOUSTIC DIAPHRAGM, AND...
    • Publication number 20200196060
    • Publication date Jun 18, 2020
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DIAPHRAGM AND ELECTROACOUSTIC TRANSDUCER
    • Publication number 20190191251
    • Publication date Jun 20, 2019
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONE
    • Publication number 20180103309
    • Publication date Apr 12, 2018
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20170257690
    • Publication date Sep 7, 2017
    • Audio-Technica Corporation
    • Hiromichi OZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPHONE
    • Publication number 20120076341
    • Publication date Mar 29, 2012
    • Hiromichi Ozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE