Patents by Inventor Michael Joseph Stirniman

Michael Joseph Stirniman 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: 6355300
    Abstract: A method for lubricating a thin film magnetic media is disclosed wherein the magnetic media is lubricated only at the head-disc interface zone. The method comprises the steps of vaporizing the lubricant, mixing the lubricant with a carrier gas stream, and depositing a film of the lubricant on at the loading zone on the surface of the magnetic media. The lubricant film can be selectively deposited on the surface of the magnetic disc at any location and at any thickness. In one embodiment of the invention, the lubricant film forms a radial band on the surface of the magnetic disc located near the outside diameter of the magnetic disc.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: March 12, 2002
    Assignee: Seagate Technology LLC
    Inventors: Michael Joseph Stirniman, Samuel John Falcone
  • Publication number: 20020006467
    Abstract: A method for preventing migration of lubrication molecules into adjacent process chambers while coating a thin layer of lubricant over a storage surface of a disc using a vapor lubrication process. The method includes trapping the lubrication molecules that are not deposited onto the storage surface of the discs during the vapor lubrication process by using one or more cold traps including cold trapping surfaces in a vapor lubrication station.
    Type: Application
    Filed: April 12, 2001
    Publication date: January 17, 2002
    Inventors: Michael Joseph Stirniman, Paul Stephen McLeod, Jing Gui
  • Patent number: 6319600
    Abstract: A high-fraction, terminally nonfunctional fluoropolyether lubricant topcoat is applied to a magnetic recording medium. The topcoat provides good stiction and wear properties at a low thickness.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 20, 2001
    Assignee: Seagate Technology LLC
    Inventors: Michael Joseph Stirniman, Samuel John Falcone
  • Patent number: 6214410
    Abstract: A lubricant topcoat is applied to a magnetic recording medium under vacuum, thereby eliminating oxidative degradation, increasing lubricant transport properties to the disc surface, increasing uniformity and enabling control of the lubricant molecular weight distribution. Embodiments include positioning the magnetic recording medium in a deposition chamber in communication with a source chamber containing the lubricant and evacuating the chambers to subatmospheric pressure. A heater, attached to the source chamber, elevates the temperature of the lubricant within the source chamber so that the lubricant flows from the source chamber to the deposition chamber and deposits on the magnetic recording medium.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: April 10, 2001
    Assignee: Seagate Technology LLC
    Inventors: Michael Joseph Stirniman, Samuel John Falcone
  • Patent number: 6190749
    Abstract: An information storage system including a perfluoropolyether lubricant having hydroxyethyloxymethyl terminated endgroups on the surface of a rigid storage medium is provided. In the subject invention, the perfluoropolyether lubricant has the general repeat formula of: HOp(CH2—CH2O)CH2—Z—CH2(OCH2—CH2)pOH where Z is —CF2—(OC2F4)m—(CF2)n—OCF2—, p has an average value of 1.5, the ratio of m to n is approximately 1.0, and the mean molecular weight of the lubricant is in the range of approximately 2000 to 6000.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: February 20, 2001
    Assignee: Seagate Technology LLC
    Inventors: Michael Joseph Stirniman, Samuel John Falcone, Bruno Jean Marchon, Jing Gui