Patents by Inventor Tadahiro SUGAWARA

Tadahiro SUGAWARA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optical disc, and production method and reproduction apparatus for optical disc
    Patent number: 8441911
    Abstract: An optical disc has a data layer including a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate, a display layer including a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, and an intermediate layer made of a transparent material provided between an upper side of the data layer and a lower side of the display layer. The data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 14, 2013
    Assignees: Victor Creative Media Co., Ltd., JVC Kenwood Corporation
    Inventors: Tadahiro Sugawara, Wataru Kuzuta, Atsuhisa Yamamoto, Fumitaka Tsuji
  • OPTICAL DISC, AND PRODUCTION METHOD AND REPRODUCTION APPARATUS FOR OPTICAL DISC
    Publication number: 20120163151
    Abstract: An optical disc has a data layer including a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate, a display layer including a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, and an intermediate layer made of a transparent material provided between an upper side of the data layer and a lower side of the display layer. The data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 28, 2012
    Applicants: JVC KENWOOD Corporation, Victor Creative Media Co., Ltd.
    Inventors: Tadahiro SUGAWARA, Wataru Kuzuta, Atsuhisa Yamamoto, Fumitaka Tsuji