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HIDETOSHI HIRAOKA

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  • Kyoto, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    DIAPHRAGM MANUFACTURING METHOD AND DIAPHRAGM
    • Publication number 20240223952
    • Publication date Jul 4, 2024
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIDETOSHI HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTROACOUSTIC TRANSDUCER
    • Publication number 20230036168
    • Publication date Feb 2, 2023
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIDETOSHI HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTROACOUSTIC TRANSDUCER
    • Publication number 20200228900
    • Publication date Jul 16, 2020
    • PANASONIC CORPORATION
    • Hidetoshi HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER-DIAPHRAGM AND LOUDSPEAKER INCLUDING THE SAME
    • Publication number 20180270597
    • Publication date Sep 20, 2018
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIDETOSHI HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER DIAPHRAGM, MANUFACTURING METHOD FOR THE SAME, AND LOUDS...
    • Publication number 20180270595
    • Publication date Sep 20, 2018
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIDETOSHI HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER-DIAPHRAGM AND LOUDSPEAKER INCLUDING THE SAME
    • Publication number 20180270596
    • Publication date Sep 20, 2018
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIDETOSHI HIRAOKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE