Patents by Inventor James H. Giusti

James H. Giusti 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).

  • Giant magnetoresistive sensor having selfconsistent demagnetization fields
    Patent number: 6914759
    Abstract: The present invention is directed to a spin valve sensor for use in a data storage system, that is adapted to receive a sense current and produce a GMR effect in response to applied magnetic fields. The spin valve sensor includes first and second ferromagnetic free layers, a spacer layer positioned between the first and second ferromagnetic free layers, and a biasing component. The first ferromagnetic free layer has a magnetization (M1) in a first direction, when in a quiescent (non-biased) state. The second ferromagnetic free layer has a magnetization (M2) in a second direction that is anti-parallel to the first direction, when in a quiescent (non biased) state.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 5, 2005
    Assignee: Seagate Technology LLC
    Inventors: Lujun Chen, James H. Giusti, Juan J. Fernandez-de-Castro
  • Giant magnetoresistive sensor having selfconsistent demagnetization fields
    Publication number: 20020034056
    Abstract: The present invention is directed to a spin valve sensor for use in a data storage system, that is adapted to receive a sense current and produce a GMR effect in response to applied magnetic fields. The spin valve sensor includes first and second ferromagnetic free layers, a spacer layer positioned between the first and second ferromagnetic free layers, and a biasing component. The first ferromagnetic free layer has a magnetization (M1) in a first direction, when in a quiescent (non-biased) state. The second ferromagnetic free layer has a magnetization (M2) in a second direction that is anti-parallel to the first direction, when in a quiescent (non biased) state.
    Type: Application
    Filed: April 26, 2001
    Publication date: March 21, 2002
    Inventors: Lujun Chen, James H. Giusti, Juan J. Fernandez-de-Castro