TREA

Katsunori Murozaki

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Patents Grantslast 30 patents

  • Information Patent Grant

    Wearable device
    • Patent number 10,321,216
    • Issue date Jun 11, 2019
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earpiece and electro-acoustic transducer with protrusions and/or gr...
    • Patent number 9,516,402
    • Issue date Dec 6, 2016
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone device
    • Patent number 8,983,110
    • Issue date Mar 17, 2015
    • Sony Corporation
    • Keitaro Fujiwara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone device
    • Patent number 8,767,997
    • Issue date Jul 1, 2014
    • Sony Corporation
    • Keitaro Fujiwara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earpiece and electro-acoustic transducer
    • Patent number 8,270,648
    • Issue date Sep 18, 2012
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earpiece and earphone
    • Patent number 8,208,676
    • Issue date Jun 26, 2012
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone
    • Patent number 7,120,268
    • Issue date Oct 10, 2006
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone device
    • Patent number 6,970,572
    • Issue date Nov 29, 2005
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pipe microphone device
    • Patent number 6,560,346
    • Issue date May 6, 2003
    • Sony Corporation
    • Takashi Ohta
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earphone
    • Patent number 5,949,896
    • Issue date Sep 7, 1999
    • Sony Corporation
    • Koji Nageno
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    WEARABLE DEVICE
    • Publication number 20180077480
    • Publication date Mar 15, 2018
    • SONY CORPORATION
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPIECE AND ELECTRO-ACOUSTIC TRANSDUCER
    • Publication number 20150222978
    • Publication date Aug 6, 2015
    • Sony Corporation
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONE DEVICE
    • Publication number 20140198943
    • Publication date Jul 17, 2014
    • SONY CORPORATION
    • Keitaro FUJIWARA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONE DEVICE
    • Publication number 20110007926
    • Publication date Jan 13, 2011
    • SONY CORPORATION
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPIECE AND EARPHONE
    • Publication number 20100135517
    • Publication date Jun 3, 2010
    • SONY CORPORATION
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONE DEVICE
    • Publication number 20090052719
    • Publication date Feb 26, 2009
    • Keitaro Fujiwara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Earpiece and Electro-Acoustic Transducer
    • Publication number 20090052711
    • Publication date Feb 26, 2009
    • Katsunori MUROZAKI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Headphone
    • Publication number 20040170294
    • Publication date Sep 2, 2004
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Pipe microphone device
    • Publication number 20020044670
    • Publication date Apr 18, 2002
    • Takashi Ohta
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Headphone device
    • Publication number 20020031238
    • Publication date Mar 14, 2002
    • Katsunori Murozaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE