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Yoshimi Kudo

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  • Yamagata, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing a magnesium diaphragm
    • Patent number 7,308,750
    • Issue date Dec 18, 2007
    • Pioneer Corporation
    • Hiroyuki Tomiyama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Diaphragm for speakers
    • Patent number 7,027,609
    • Issue date Apr 11, 2006
    • Pioneer Corporation
    • Yoshimi Kudo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    REPULSION-TYPE MAGNETIC CIRCUIT AND SPEAKER DEVICE
    • Publication number 20100128891
    • Publication date May 27, 2010
    • Pioneer Corporation
    • Hayami Kondo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Voice coil device and speaker device using the voice coil device
    • Publication number 20090304224
    • Publication date Dec 10, 2009
    • Pioneer Corporation
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Diaphragm for speaker
    • Publication number 20070071276
    • Publication date Mar 29, 2007
    • Yoshimi Kudo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker device
    • Publication number 20070064971
    • Publication date Mar 22, 2007
    • PIONEER CORPORATION
    • Yoshimi Kudo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Voice coil device and speaker device using the voice coil device
    • Publication number 20060104472
    • Publication date May 18, 2006
    • Pioneer Corporation
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20050180591
    • Publication date Aug 18, 2005
    • PIONEER CORPORATION
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Magnesium diaphragm, method for manufacturing the same, and speaker...
    • Publication number 20040231136
    • Publication date Nov 25, 2004
    • PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    • Hiroyuki Tomiyama
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Loudspeaker apparatus
    • Publication number 20030118207
    • Publication date Jun 26, 2003
    • Pioneer Corporation and Tohoku Pioneer Corporation
    • Yoshimi Kudo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Diaphragm for speakers
    • Publication number 20020025059
    • Publication date Feb 28, 2002
    • PIONEER CORPORATION
    • Yoshimi Kudo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE