Patents by Inventor Daisuki Ueda

Daisuki Ueda 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 disk
    Publication number: 20040246883
    Abstract: The present invention provides an optical disc which is constituted by a substrate, a recording layer, and a protection layer and is irradiated with a laser beam from the protection layer side. The optical disc has the substrate whose diameter is greater than 50 mm, the recording layer provided on the substrate, and the protection layer which is layered on the recording layer and thinner than the substrate and on which a recording or reproducing laser beam is incident. The total thickness of the optical disc is 0.7 mm or more.
    Type: Application
    Filed: April 7, 2004
    Publication date: December 9, 2004
    Inventors: Daisuki Ueda, Takeshi Yamasaki, Toshiyuki Kashiwagi