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SHIGETAKA DOUZONO

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  • Fukui, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Switch device
    • Patent number 8,013,265
    • Issue date Sep 6, 2011
    • Panasonic Corporation
    • Kazuhisa Fujita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Lighting apparatus
    • Patent number 6,837,604
    • Issue date Jan 4, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Illumination type keyboard
    • Patent number 6,764,191
    • Issue date Jul 20, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Illuminated keyboard switch
    • Patent number 6,686,549
    • Issue date Feb 3, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Illuminated button switch
    • Patent number 6,670,565
    • Issue date Dec 30, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Tetsuro Hanahara
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SWITCH DEVICE
    • Publication number 20110220476
    • Publication date Sep 15, 2011
    • PANASONIC CORPORATION
    • KAZUHISA FUJITA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Illuminated button switch
    • Publication number 20030173198
    • Publication date Sep 18, 2003
    • Tetsuro Hanahara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Lighting apparatus
    • Publication number 20030039114
    • Publication date Feb 27, 2003
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Illumination type keyboard
    • Publication number 20020196618
    • Publication date Dec 26, 2002
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Lighting unit and lighting apparatus using the same unit
    • Publication number 20020145591
    • Publication date Oct 10, 2002
    • Minoru Hato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Illuminated keyboard switch
    • Publication number 20020125118
    • Publication date Sep 12, 2002
    • Shigetaka Douzono
    • G06 - COMPUTING CALCULATING COUNTING