Patents by Inventor Jaako Nousiainen

Jaako Nousiainen 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).

  • User-interface illuminator
    Patent number: 6422712
    Abstract: A light guide is disclosed having a critical angle, wherein light enters the light guide in an input direction. A reflector reflects light using total internal reflection in a lateral direction. A second reflector reflects light using total internal reflection in a second lateral direction. A third reflector reflects light from the lateral direction upward. A fourth reflector reflects light from the second lateral direction upward.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: July 23, 2002
    Inventors: Jaako Nousiainen, Terho Kaikuranta