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Hiroyuki Takewa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Loudspeaker, video device, and portable information processing appa...
    • Patent number 9,247,349
    • Issue date Jan 26, 2016
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Shuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker and electronic equipment including the loudspeaker
    • Patent number 9,106,992
    • Issue date Aug 11, 2015
    • PANASONIC INTELLECUAL PROPERTY MANAGEMENT CO., LTD.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker and electronic device using the speaker
    • Patent number 8,879,776
    • Issue date Nov 4, 2014
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker and electronic device
    • Patent number 8,553,926
    • Issue date Oct 8, 2013
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker, video device, and portable information processing appa...
    • Patent number 8,542,861
    • Issue date Sep 24, 2013
    • Panasonic Corporation
    • Shuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker, video device, and portable information processing appa...
    • Patent number 8,498,442
    • Issue date Jul 30, 2013
    • Panasonic Corporation
    • Shuji Saiki
  • Information Patent Grant

    Speaker device
    • Patent number 8,428,293
    • Issue date Apr 23, 2013
    • Panasonic Corporation
    • Akiko Fujise
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electro-acoustical transducer
    • Patent number 8,422,727
    • Issue date Apr 16, 2013
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker and electronic device including loudspeaker
    • Patent number 8,422,723
    • Issue date Apr 16, 2013
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker and electronic device including the same
    • Patent number 8,363,880
    • Issue date Jan 29, 2013
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electric-acoustic transducer and electronic device
    • Patent number 8,131,002
    • Issue date Mar 6, 2012
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Diaphragm unit and speaker using the same
    • Patent number 8,094,864
    • Issue date Jan 10, 2012
    • Panasonic Corporation
    • Atsushi Inaba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 8,031,902
    • Issue date Oct 4, 2011
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 7,873,179
    • Issue date Jan 18, 2011
    • Panasonic Corporation
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 7,447,328
    • Issue date Nov 4, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Diaphragm for speaker
    • Patent number D560213
    • Issue date Jan 22, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Atsushi Inaba
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Surrounding structure of a loudspeaker
    • Patent number 7,054,459
    • Issue date May 30, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,973,194
    • Issue date Dec 6, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,842,529
    • Issue date Jan 11, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Satoshi Koura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 6,836,551
    • Issue date Dec 28, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loud speaker, diaphragm and process for making the diaphragm
    • Patent number 6,757,404
    • Issue date Jun 29, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Piezoelectric loudspeaker
    • Patent number 6,747,395
    • Issue date Jun 8, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Kazue Satoh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,714,655
    • Issue date Mar 30, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 6,700,987
    • Issue date Mar 2, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker damper and loudspeaker
    • Patent number 6,655,495
    • Issue date Dec 2, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,305,491
    • Issue date Oct 23, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 6,069,965
    • Issue date May 30, 2000
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 5,862,242
    • Issue date Jan 19, 1999
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 5,664,024
    • Issue date Sep 2, 1997
    • Matsushita Electric Industrial Co., Ltd.
    • Akihiro Furuta
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound absorber
    • Patent number 5,512,715
    • Issue date Apr 30, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    LOUDSPEAKER AND ELECTRONIC EQUIPMENT INCLUDING THE LOUDSPEAKER
    • Publication number 20140056467
    • Publication date Feb 27, 2014
    • PANASONIC CORPORATION
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER, VIDEO DEVICE, AND PORTABLE INFORMATION PROCESSING APPA...
    • Publication number 20130294640
    • Publication date Nov 7, 2013
    • Shuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER AND ELECTRONIC DEVICE USING THE SPEAKER
    • Publication number 20130051603
    • Publication date Feb 28, 2013
    • PANASONIC CORPORATION
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER AND ACOUSTIC EQUIPMENT INCLUDING THE SPEAKER
    • Publication number 20120281869
    • Publication date Nov 8, 2012
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER AND ELECTRONIC DEVICE INCLUDING THE SAME
    • Publication number 20110235849
    • Publication date Sep 29, 2011
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER AND ELECTRONIC DEVICE INCLUDING LOUDSPEAKER
    • Publication number 20110211725
    • Publication date Sep 1, 2011
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER, VIDEO DEVICE, AND PORTABLE INFORMATION PROCESSING APPA...
    • Publication number 20110044489
    • Publication date Feb 24, 2011
    • Shuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER AND ELECTRONIC DEVICE
    • Publication number 20100322458
    • Publication date Dec 23, 2010
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DIAPHRAGM UNIT AND SPEAKER USING THE SAME
    • Publication number 20100158306
    • Publication date Jun 24, 2010
    • Matsushita Electric Industrial Co., Ltd.
    • Atsushi Inaba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20100158282
    • Publication date Jun 24, 2010
    • Akiko Fujise
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRO-ACOUSTIC TRANSDUCER AND ELECTRONIC DEVICE
    • Publication number 20090097694
    • Publication date Apr 16, 2009
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRO-ACOUSTICAL TRANSDUCER
    • Publication number 20090034751
    • Publication date Feb 5, 2009
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20080273740
    • Publication date Nov 6, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20080063235
    • Publication date Mar 13, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20050041830
    • Publication date Feb 24, 2005
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20040146174
    • Publication date Jul 29, 2004
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Surrounding structure of a loudspeaker
    • Publication number 20030231784
    • Publication date Dec 18, 2003
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker damper and loudspeaker
    • Publication number 20030079936
    • Publication date May 1, 2003
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20030053651
    • Publication date Mar 20, 2003
    • Satoshi Koura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20020172392
    • Publication date Nov 21, 2002
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loud speaker, diaphragm and process for making the diaphragm
    • Publication number 20020061117
    • Publication date May 23, 2002
    • Hiroyuki Takewa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20020051558
    • Publication date May 2, 2002
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20010043712
    • Publication date Nov 22, 2001
    • Mitsukazu Kuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20010011615
    • Publication date Aug 9, 2001
    • MIKIO IWASA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE