Patents Represented by Attorney Pietragello, Bosick & Gordon

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  • Perpendicular magnetic recording media with laminated magnetic layer structure
    Patent number: 6881503
    Abstract: A perpendicular magnetic recording medium comprises a hard magnetic recording layer, a soft magnetic layer, and a non-magnetic intermediate layer between the hard magnetic recording-layer and the soft magnetic layer, wherein the hard magnetic recording layer includes an hcp-structured layer and a Co-alloy layer which may be either a Co3Pt-alloy layer or an hcp CoPt-based alloy layer positioned adjacent to the hcp-structured layer. A magnetic disc drive storage system that includes the perpendicular magnetic recording medium is also included.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: April 19, 2005
    Assignee: Seagate Technology LLC
    Inventors: Bin Lu, Dieter K. Weller