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Yoshiaki Kumagai

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Head mountable display
    • Patent number D745517
    • Issue date Dec 15, 2015
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Head mountable display
    • Patent number D695739
    • Issue date Dec 17, 2013
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Head mountable display
    • Patent number D695738
    • Issue date Dec 17, 2013
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Projector
    • Patent number D686269
    • Issue date Jul 16, 2013
    • Sony Corporation
    • Yoshiaki Kumagai
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Earphone
    • Patent number D675599
    • Issue date Feb 5, 2013
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable recorder
    • Patent number D665768
    • Issue date Aug 21, 2012
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Battery charger
    • Patent number D665346
    • Issue date Aug 14, 2012
    • Sony Corporation
    • Yoshiaki Kumagai
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Earphone
    • Patent number D656489
    • Issue date Mar 27, 2012
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable recorder
    • Patent number D649955
    • Issue date Dec 6, 2011
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined disc player, clock and radio receiver
    • Patent number D609691
    • Issue date Feb 9, 2010
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Lighting apparatus
    • Patent number 7,597,457
    • Issue date Oct 6, 2009
    • Sony Corporation
    • Akira Shirakura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Combined disc player, clock and radio receiver
    • Patent number D597520
    • Issue date Aug 4, 2009
    • Sony Corporation
    • Daisuke Shiono
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Remote controller
    • Patent number D597533
    • Issue date Aug 4, 2009
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined disc player, clock and radio receiver
    • Patent number D595688
    • Issue date Jul 7, 2009
    • Sony Corporation
    • Daisuke Shiono
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined disc player, clock and radio receiver
    • Patent number D595687
    • Issue date Jul 7, 2009
    • Sony Corporation
    • Daisuke Shiono
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Projection type display apparatus
    • Patent number 7,336,289
    • Issue date Feb 26, 2008
    • Sony Corporation
    • Hidenori Ishikawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Combined remote controller and laser pointer
    • Patent number D517023
    • Issue date Mar 14, 2006
    • Sony Corporation
    • Yoshiaki Kumagai
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Portable information terminal
    • Patent number D496036
    • Issue date Sep 14, 2004
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable information terminal
    • Patent number D494167
    • Issue date Aug 10, 2004
    • Sony Corporation
    • Maki Hirakawa
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable information terminal
    • Patent number D494166
    • Issue date Aug 10, 2004
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Toy
    • Patent number D452889
    • Issue date Jan 8, 2002
    • Sony Corporation
    • Kozo Kawakita
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Toy
    • Patent number D452541
    • Issue date Dec 25, 2001
    • Sony Corporation
    • Kozo Kawakita
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Toy
    • Patent number D452542
    • Issue date Dec 25, 2001
    • Sony Corporation
    • Kozo Kawakita
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Speaker box
    • Patent number D435035
    • Issue date Dec 12, 2000
    • Sony Corporation
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Toy
    • Patent number D431270
    • Issue date Sep 26, 2000
    • Sony Corporation
    • Kozo Kawakita
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Combined wireless telephone and keyboard
    • Patent number D413885
    • Issue date Sep 14, 1999
    • Sony Corporation
    • Mayu Irimajiri
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Electrical program guide system and method
    • Patent number 5,926,230
    • Issue date Jul 20, 1999
    • Sony Corporation
    • Makoto Niijima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Television receiver
    • Patent number D412166
    • Issue date Jul 20, 1999
    • Sony Kabushiki Kaisha
    • Yoshiaki Kumagai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Electrical program guide system and method
    • Patent number 5,903,314
    • Issue date May 11, 1999
    • Sony Corporation
    • Makoto Niijima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    System and method for parent-controlled charging for on-line services
    • Patent number 5,845,260
    • Issue date Dec 1, 1998
    • Sony Corporation
    • Hiroaki Nakano
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER SUPPLY METHOD, CHARGING CONTROL DEVICE, AND POWER SUPPLY SYSTEM
    • Publication number 20140361734
    • Publication date Dec 11, 2014
    • SONY CORPORATION
    • Daisuke Yamazaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    FUEL CELL DEVICE
    • Publication number 20110300468
    • Publication date Dec 8, 2011
    • SONY CORPORATION
    • Hiroshi Takabayashi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    LIGHTING APPARATUS
    • Publication number 20070216980
    • Publication date Sep 20, 2007
    • SONY CORPORATION
    • Akira Shirakura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Application

    Projection type display apparatus
    • Publication number 20050036084
    • Publication date Feb 17, 2005
    • Hidenori Ishikawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE