Patents by Inventor David Seagle

David Seagle 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).

  • Head design with overlapping coil for narrow pitch tape head
    Publication number: 20060050432
    Abstract: The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an overlapping coil structure, wherein write coils of adjacent heads overlap. The overlap is made possible by placing coils of adjacent heads at different levels within the thin film structure, separated by dielectric insulating layers.
    Type: Application
    Filed: November 30, 2004
    Publication date: March 9, 2006
    Inventors: Edward Lee, David Seagle
  • Narrow pitch tape head array using an orthogonal backgap
    Publication number: 20060050433
    Abstract: The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an orthogonal backgap structure, wherein the width of the backgap is less than the depth, thereby narrowing the footprint of individual head structures. The increased cross sectional area of the orthogonal backgap and revised yoke design ensure sufficient magnetic field strength at the write gap of each head.
    Type: Application
    Filed: October 29, 2004
    Publication date: March 9, 2006
    Inventors: Edward Lee, David Seagle
  • Thin film write head with universal coil design
    Patent number: 6674610
    Abstract: In at least one embodiment, a thin film write head having a conductor with a coil structure having a central axis perpendicular to an air bearing surface. The conductor having a first contact centrally located at a first end of the conductor. The conductor having plurality of contacts located distal from the first contact. The plurality of contacts having at least one contact on either side of the central axis of the write head.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: January 6, 2004
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Mark Thomas, David Seagle, Carlos Corona, Amritpal Rana