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Masahito Furuya

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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric-acoustic transducer and electric-acoustic transducer/housi...
    • Patent number 7,711,131
    • Issue date May 4, 2010
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Compact speaker with a protective cover
    • Patent number 7,266,213
    • Issue date Sep 4, 2007
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Compound sound generator
    • Patent number 7,162,050
    • Issue date Jan 9, 2007
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electroacoustic transducer
    • Patent number 7,158,650
    • Issue date Jan 2, 2007
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Compound sound generator
    • Patent number 7,142,686
    • Issue date Nov 28, 2006
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electroacoustic transducer
    • Patent number 7,010,140
    • Issue date Mar 7, 2006
    • Citizen Electronics Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 6,744,895
    • Issue date Jun 1, 2004
    • Citizen Electronics Co., Ltd.
    • Kazumi Miyamoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Compound speaker for a portable communication device
    • Patent number 6,711,274
    • Issue date Mar 23, 2004
    • Citizen Electronics Co., Ltd.
    • Masato Asahina
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Telephone receiver with a speaker
    • Patent number D487455
    • Issue date Mar 9, 2004
    • Citizen Electronics Co., Ltd.
    • Masato Asahina
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Telephone receiver with a speaker
    • Patent number D487083
    • Issue date Feb 24, 2004
    • Citizen Electronics Co., Ltd.
    • Masato Asahina
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    Electric-acoustic transducer and electric-acoustic transducer/housi...
    • Publication number 20060153417
    • Publication date Jul 13, 2006
    • CITIZEN ELECTRONICS CO., LTD.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Electroacoustic transducer
    • Publication number 20040161125
    • Publication date Aug 19, 2004
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Electroacoustic transducer
    • Publication number 20040125981
    • Publication date Jul 1, 2004
    • CITIZEN ELECTRONICS CO., LTD.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Compound sound generator
    • Publication number 20040071303
    • Publication date Apr 15, 2004
    • CITIZEN ELECTRONICS CO., LTD.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Compound sound generator
    • Publication number 20040071309
    • Publication date Apr 15, 2004
    • CITIZEN ELECTRONICS CO., LTD.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker and method for manufacturing the speaker
    • Publication number 20030081807
    • Publication date May 1, 2003
    • Citizen Electronics, Co., Ltd.
    • Masahito Furuya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Compound speaker for a portable communication device
    • Publication number 20030059079
    • Publication date Mar 27, 2003
    • CITIZEN ELECTRONICS CO., LTD.
    • Masato Asahina
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20020168074
    • Publication date Nov 14, 2002
    • CITIZEN ELECTRONICS CO., LTD.
    • Kazumi Miyamoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE