Patents by Inventor Rodney A. Roques

Rodney A. Roques 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).

  • Patent number: 4283247
    Abstract: The liquid phase epitaxial growth of a magnetic garnet film is obtained by providing a circulating flux solution of the material, wherein spaced apart zones are maintained at different temperatures, above and below the saturation point; and by placing a preheated substrate in contact with the supersaturated zone, wherein a suitable growth temperature is maintained. This system avoids the prior need for heating and cooling the entire solution as a single, thermally uniform zone, and thereby achieves a substantial savings in time which permits at least a ten-fold increase in production rates, without increasing manpower or capital investment.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: August 11, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Rodney A. Roques, Gene F. Wakefield