Patents by Inventor Shozo Umeda

Shozo Umeda 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).

  • Combined continuous plating apparatus for hot-dip plating and vacuum deposition plating
    Patent number: 4643131
    Abstract: Disclosed is a combined continuous plating apparatus for hot-dip plating and vacuum deposition plating characterized in that the outlet of the gas reduction annealing furnace of a conventional continuous hot-dip plating apparatus and the inlet of the seal roll chamber of a known continuous vacuum deposition plating apparatus are connected through a pressurized chamber in order to prevent invasion of hydrogen-containing reduction gas into the vacuum deposition chamber, whereby is prevented the possibility of the hydrogen-containing gas causing an explosion should air leak into the vacuum deposition chamber.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: February 17, 1987
    Assignees: Nisshin Steel Company, Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Shozo Umeda, Norio Tsukiji, Takuya Aiko, Toshiharu Kittaka, Heizaburo Furukawa, Kanji Wake, Yoshio Shimozato, Kenichi Yanagi, Mitsuo Kato, Tetsuyoshi Wada
  • Method of driving a plasma display panel
    Patent number: 3979718
    Abstract: A plasma display panel driving method and system in which a specified one of the panel cells is discharged at all times and electrons produced by the discharge serve as initial electrons for the other display cells, thereby to increase the writing response speed of the display cells and ensure achievement of writing operation.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: September 7, 1976
    Assignee: Fujitsu Ltd.
    Inventors: Shozo Umeda, Tadatsugu Hirose, Shizuo Andoh