Patents by Inventor Muneo Yoneda

Muneo Yoneda 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).

  • Surface illuminant device and prism sheet used therefor
    Patent number: 6799859
    Abstract: A surface illuminant device for illuminating a short-distance observation picture plane, capable of easily being enlarged in area without inviting a non-uniformity in visibility, the device comprising a light guide (12), a light reflection member (18), a linear light source disposed to extend in a Y-direction along a light incident end face in a Y-Z plane of the light guide (12), and a prism sheet (20) for converting a light advancing direction. The light guide (12) has a light outgoing mechanism of a fine unevenness structure for emitting from a light outgoing surface (12-3) an incident light from the linear source, and a light focusing means for acting on the light passed through the light guide (12) and the prism sheet (20) to allow it to leave in a focused status.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: October 5, 2004
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kozo Ida, Muneo Yoneda