Patents by Inventor Yuzou Nakano

Yuzou Nakano 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).

  • Fresnel lens sheet, light-transmission screen, and projection image display apparatus
    Publication number: 20090135480
    Abstract: The Fresnel lens sheet according to the present invention has a plurality of prismatic Fresnel lens elements including a Fresnel facet, a riser facet, and a top facet crossing the facet and the riser facet on an entrance surface. An angle of the top facet of each Fresnel lens element constituting the lens relative to the an exit surface, ?1, is determined so that an exit angle of the light that has entered each of the top facets and exits from the exit surface, ?, is greater than 35 degrees.
    Type: Application
    Filed: October 23, 2008
    Publication date: May 28, 2009
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kuniko Kojima, Hayato Takeuchi, Norihiro Watanabe, Yuzou Nakano, Takao Endo