TREA

Takahiro Muraguchi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Input device
    • Patent number 10,645,482
    • Issue date May 5, 2020
    • Sony Corporation
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Input device
    • Patent number 10,299,026
    • Issue date May 21, 2019
    • Sony Corporation
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Input device
    • Patent number 8,842,850
    • Issue date Sep 23, 2014
    • Sony Corporation
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic transducer
    • Patent number 6,175,637
    • Issue date Jan 16, 2001
    • Sony Corporation
    • Masao Fujihira
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker apparatus and sound reproduction system employing same
    • Patent number 6,160,894
    • Issue date Dec 12, 2000
    • Sony Corporation
    • Jun Kishigami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic transducer
    • Patent number 6,035,052
    • Issue date Mar 7, 2000
    • Sony Corporation
    • Masao Fujihira
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker apparatus
    • Patent number 5,909,496
    • Issue date Jun 1, 1999
    • Sony Corporation
    • Jun Kishigami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker apparatus
    • Patent number 5,862,237
    • Issue date Jan 19, 1999
    • Sony Corporation
    • Jun Kishigami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone apparatus including an equalizer system having an open lo...
    • Patent number 5,668,883
    • Issue date Sep 16, 1997
    • Sony Corporation
    • Kensaku Abe
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Duplex optical fiber link
    • Patent number 5,432,874
    • Issue date Jul 11, 1995
    • Sony Corporation
    • Takahiro Muraguchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    INPUT DEVICE
    • Publication number 20200236457
    • Publication date Jul 23, 2020
    • SONY CORPORATION
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    INPUT DEVICE
    • Publication number 20190253784
    • Publication date Aug 15, 2019
    • SONY CORPORATION
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    INPUT DEVICE
    • Publication number 20140348341
    • Publication date Nov 27, 2014
    • SONY CORPORATION
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    INPUT DEVICE
    • Publication number 20120082321
    • Publication date Apr 5, 2012
    • SONY CORPORATION
    • Kazuhiro Akaike
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE