Patents by Inventor Makoto Touhou

Makoto Touhou 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).

  • Low pressure discharge lamp
    Patent number: 4417172
    Abstract: The present invention purposes to suppress flickering phenomena which is caused by moving striation of rare gas discharge in a low pressure discharge lamp tube containing therein mercury and a rare gas; an apparatus for lighting a low pressure discharge lamp comprises a discharge tube and static magnetic field generating means, which is for instance a permanent magnet, disposed on the tube or around the tube, and generates a magnetic field to cross an electric field substantially all over the positive column in the tube.
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: November 22, 1983
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Makoto Touhou, Shigeaki Wada, Minoru Yamamoto