Patents by Inventor Louis Borelis

Louis Borelis 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).

  • Disc drive spindle motor having hydro bearing with lubricant optimized with disc drive compatible additives
    Patent number: 5907456
    Abstract: A disc drive data storage system according to the present invention includes a housing, a central axis, a stationary member which is fixed with respect to the housing and coaxial with the central axis, and a rotatable member which is rotatable about the central axis with respect to the stationary member. A stator is fixed with respect to the housing. A rotor is supported by the rotatable member and is magnetically coupled to the stator. At least one data storage disc is attached to and is coaxial with the rotatable member. A hydro bearing interconnects the stationary member and the rotatable member and includes a blend of a base fluid having a viscosity index of at least 110, an anti-oxidant additive, anti-corrosion additive and an anti-wear additive, which are effective for resisting catalytic degradation in the hydro bearing.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: May 25, 1999
    Assignee: Seagate Technology, Inc.
    Inventors: Raquib U. Khan, Gregory I. Rudd, Louis Borelis, Hans Leuthold, Gunter K. Heine