Patents by Inventor David James Larson

David James Larson 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).

  • TMR sensor with oxidized alloy barrier layer and method for forming the same
    Patent number: 7183893
    Abstract: A tunneling magnetoresistive stack includes a first ferromagnetic layer, a tunnel barrier layer on the first ferromagnetic layer, and a second ferromagnetic layer on the tunnel barrier layer. The tunneling magnetoresistive stack exhibits a negative exchange coupling between the first ferromagnetic layer and the second ferromagnetic layer indicating that the tunneling magnetoresistive stack has a high quality tunnel barrier layer.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: February 27, 2007
    Assignee: Seagate Technology LLC
    Inventors: Peter Hampden Clifton, Eric Walter Singleton, David James Larson, Brian William Karr, Kristin Joy Duxstad
  • Magnetoresistive read sensor with short permanent magnets
    Patent number: 6930865
    Abstract: A transducing head has a magnetoresistive sensor, a first bias element, and a second bias element. The magnetoresistive sensor is positioned between the first and second bias elements, and has a sensor width. The first bias element has a first length and the second bias element has a second length. The direction of the first and second lengths are substantially similar to the direction of the sensor width. The first and second lengths in the range of about one-tenth to about twenty times the sensor width.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: August 16, 2005
    Assignee: Seagate Technology LLC
    Inventors: Mai Abdelhamid Ghaly, David James Larson, Paul Edward Anderson, Kristin J. Duxstad, Brenda Anne Everitt, Patrick John Moran, Steven Barclay Slade, Eric Walter Singleton
  • Magnetoresistive read sensor with short permanent magnets
    Publication number: 20030214765
    Abstract: A transducing head has a magnetoresistive sensor, a first bias element, and a second bias element. The magnetoresistive sensor is positioned between the first and second bias elements, and has a sensor width. The first bias element has a first length and the second bias element has a second length. The direction of the first and second lengths are substantially similar to the direction of the sensor width. The first and second lengths in the range of about one-tenth to about twenty times the sensor width.
    Type: Application
    Filed: January 21, 2003
    Publication date: November 20, 2003
    Applicant: Seagate Technology, LLC
    Inventors: Mai Abdelhamid Ghaly, David James Larson, Paul Edward Anderson, Kristin J. Duxstad, Brenda Anne Everitt, Patrick John Moran, Steven Barclay Slade, Eric Walter Singleton