Patents by Inventor Henricus Wilhelmus Maria Linssen

Henricus Wilhelmus Maria Linssen 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).

  • Plural beam cathode ray tube including an astigmatic electron lens and self-converging
    Patent number: 3970890
    Abstract: A cathode ray tube having three electron guns in one plane which are deflected by a self-converging deflection coil. In order to obtain circular electron spots, the tube includes an astigmatic electron lens which restricts the dimension of the electron spots perpendicular to this one plane.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: July 20, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Henricus Wilhelmus Maria Linssen