Patents by Inventor Richard Paul Larson

Richard Paul 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).

  • Magnetic shields for reduced variations of head-media spacing
    Patent number: 7031122
    Abstract: The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield positioned adjacent to the read sensor, wherein the shield contributes to thermal pole-tip recession in an amount less than about 0.5 ?/° C. The invention also offers a magnetic recording head that includes a substrate having a coefficient of thermal expansion, a read sensor, and at least one shield, positioned adjacent to the read sensor, that has a coefficient of thermal expansion within ±2×10?6/° C. of the coefficient of thermal expansion of the substrate. The invention further offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield, positioned adjacent the read sensor, with a thickness of from about 0.05 ?m to about 0.5 ?m.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: April 18, 2006
    Assignee: Seagate Technology LLC
    Inventors: Ladislav Rudolf Pust, Declan Macken, Mark Thomas Kief, Yifan Zhang, Venkateswara Inturi, Richard Paul Larson
  • Magnetic shields for reduced variations of head-media spacing
    Publication number: 20030081359
    Abstract: The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least on shield positioned adjacent to the read sensor, wherein the shield contributes to thermal pole-tip recession in an amount less than about 0.4Å/° C. The invention also offers a magnetic recording head that includes a substrate having a coefficient of thermal expansion, a read sensor, and at least one shield, positioned adjacent to the read sensor, that has a coefficient of thermal expansion within ±2×10−6/° C. of the coefficient of thermal expansion of the substrate. The invention further offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield, with a thickness of from about 0.05 &mgr;m to about 0.5 &mgr;m positioned adjacent the read sensor.
    Type: Application
    Filed: July 26, 2002
    Publication date: May 1, 2003
    Applicant: Seagate Technology LLC
    Inventors: Ladislav Rudolf Pust, Declan Macken, Mark Thomas Kief, Yifan Zhang, Venkateswara Inturi, Richard Paul Larson