Patents by Inventor Kevin J. Duddy

Kevin J. Duddy 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).

  • Magnetoresistive shield incorporating seedlayer for anisotropy enhancement
    Patent number: 6169646
    Abstract: A layer of iron—silicon—aluminum alloy is deposited over a seedlayer of an amorphous alloy to form a shield for a read element in a recording head. Percentage weights of iron, silicon, and aluminum in the iron—silicon—aluminum alloy are each selected such that the alloy has both near-zero magnetostriction and distinct magnetocrystalline anisotropy. Use of the amorphous alloy seedlayer results in greater magnetocrystalline anisotropy in the shield.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: January 2, 2001
    Assignee: Seagate Technology, Inc.
    Inventors: Declan Macken, Kevin J. Duddy