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Akira Arai

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  • Hamamatsu-shi, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    POSITION DETECTING DEVICE
    • Publication number 20210144473
    • Publication date May 13, 2021
    • Yamaha Corporation
    • Akira ARAI
    • G01 - MEASURING TESTING
  • Information Patent Application

    ELECTROACOUSTIC TRANSDUCER
    • Publication number 20150110305
    • Publication date Apr 23, 2015
    • Yamaha Corporation
    • Masao Noro
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker Device, Sound Source Simulation System, and Echo Cancellati...
    • Publication number 20130083937
    • Publication date Apr 4, 2013
    • Yamaha Corporation
    • Akira ARAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker Apparatus
    • Publication number 20110303481
    • Publication date Dec 15, 2011
    • Yamaha Corporation
    • Akira ARAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker Apparatus
    • Publication number 20090260915
    • Publication date Oct 22, 2009
    • Yamaha Corporation
    • Akira ARAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker system and loudspeaker enclosure
    • Publication number 20070291965
    • Publication date Dec 20, 2007
    • Yamaha Corporation
    • Masao Noro
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker driving apparatus
    • Publication number 20070092091
    • Publication date Apr 26, 2007
    • Yamaha Corporation
    • Masao Noro
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker system and speaker enclosure
    • Publication number 20070000720
    • Publication date Jan 4, 2007
    • Yamaha Corporation
    • Masao Noro
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE