Patents by Inventor Hideyuki Fuma

Hideyuki Fuma 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).

  • Input interface apparatus for large screen display
    Patent number: 5818421
    Abstract: A large screen display comprising an image signal source such as a computer, an original image generator, a light-transmission screen, an on-screen pointing-position detecting means, and a light-pen built in an infra-red-ray emitting modulating means, wherein infra-red rays which are modulated by pressing force generated when the light-pen is pressed against the screen by an operator are emitted and the infrared rays are detected and amplified by an infrared-ray detector and demodulated by a demodulating means and then inputted to the image signal source, so that the tone and thickness of each stroke of a figure to be drawn and displayed can be displayed.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: October 6, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Ogino, Keiichiro Tanaka, Tetsuo Iwamoto, Kousyu Ichikawa, Hideyuki Fuma