Patents by Inventor Syoetsu Sakamoto

Syoetsu Sakamoto 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).

  • Flood lighting system
    Patent number: 5158348
    Abstract: A flood lighting system comprising a flood light having a built-in lamp for lighting a building, a polarizer adapted to linearly polarize radiation from the lamp, and an analyzer disposed in such a manner that its direction of oscillation of light is at right angles with that of the polarizer. Thus, the radiation from the flood light does not enter the field of the view of one who looks out from the interior of the building.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: October 27, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Syoetsu Sakamoto, Kenichi Sasaki