Patents by Inventor Kinjir Gunbe

Kinjir Gunbe 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).

  • Electrostatically focusing type image pickup tubes and method of manufacturing the same
    Patent number: 4169239
    Abstract: The electron lens of an electrostatically focusing type image pickup tube comprises three coaxially arranged cylindrical electrodes and the inner diameters thereof are decreased from the side of a target toward an electron gun. The electron lens is assembled by successively fitting the three electrodes over a mandrel, the outer diameter thereof varying stepwisely in accordance with the inner diameters of the three electrodes, and then interconnecting the three electrodes by axially extending insulating supporting rods.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: September 25, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Shigeru Ehata, Hideyuki Sakai, Kinjir Gunbe