Patents by Inventor Thomas Milton Sullivan

Thomas Milton Sullivan 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).

  • Magnetic recording component
    Patent number: 5978174
    Abstract: A magnetic memory recording component comprises a substrate adapted to support a magnetic memory storage medium coating. The substrate has at least a silicon carbide ceramic outer surface. If the silicon carbide ceramic outer surface has a depression in the surface thereof, the maximum depression of the maximum dimension as measured in any direction, e.g. width, depth, length or the like of the depression is less than 0.0001".
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: November 2, 1999
    Inventor: Thomas Milton Sullivan
  • Magnetic recording device components
    Patent number: 5850329
    Abstract: A magnetic memory recording component comprising at least a silicon carbide ceramic outer surface. If the silicon carbide ceramic outer surface has a depression in the surface thereof, the maximum depression of the maximum dimension as measured in any direction, e.g. width, depth, length or the like of the depression is less than 0.0001".
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: December 15, 1998
    Inventor: Thomas Milton Sullivan