Patents by Inventor Shinpei Ninomiya

Shinpei Ninomiya 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 illuminating apparatus
    Patent number: 5377084
    Abstract: A surface illuminating apparatus, which is provided with a transparent light guide plate 2, a reflecting plate 4 layered onto the rear surface of the light guide plate 2, and a light diffusion plate 6 layered onto the outer surface of plate 2. The light guide plate 2 and the reflecting plate 4 have an irregularly reflecting plate 3 therebetween. Light sources 8 are disposed at both lateral ends of the light guide plate 2, and formed on the outer surface of plate 2 is a light diffusion plate 6 having a plurality of spotted projections 7 regularly disposed and having a light condensing and diffusing function.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: December 27, 1994
    Assignee: T. Chatani & Co., Ltd.
    Inventors: Takeshi Kojima, Shinpei Ninomiya