Patents by Inventor Christopher A. Kastl

Christopher A. Kastl 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).

  • Low speed burnishing of asperities in a disc drive
    Patent number: 5863237
    Abstract: A method of and apparatus for burnishing a surface of a magnetic disc of a disc drive are disclosed. The disc drive has a data head and an actuator supporting the head as the head flies above the surface of the disc. A controller causes the disc to be rotated at rates of rotation which will result in burnishing head fly heights which are less than a normal operational fly height of the head. An actuator controller controls the actuator to repeatedly move the head across a region of the disc during a burnishing time period. The head flies above the surface of the disc at the burnishing fly heights during the burnishing time period to thereby reduce asperities on the disc.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: January 26, 1999
    Assignee: Seagate Technology, Inc.
    Inventors: Wayne L. Felts, Christopher A. Kastl, Rafael Eduardo Gutierrez