Patents by Inventor Loren Bainum Johnston, Jr.

Loren Bainum Johnston, Jr. 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).

  • Electron beam recording in thick materials
    Patent number: 3943302
    Abstract: A method of producing a high resolution information storage disc includes the steps of forming a grooved disc coated with an electron beam sensitive material, exposing the coated disc to a signal modulated electron beam, replicating the exposed disc to form a second disc of opposite contour, and utilizing the second disc to produce discs having positive-shaped groove and signal information.
    Type: Grant
    Filed: February 23, 1973
    Date of Patent: March 9, 1976
    Assignee: RCA Corporation
    Inventor: Loren Bainum Johnston, Jr.