Patents by Inventor John Daniel Stricklin

John Daniel Stricklin 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).

  • Memory cell with stress-induced anisotropy
    Patent number: 8487390
    Abstract: A magnetic memory element that has a stress-induced magnetic anisotropy. The memory element has a ferromagnetic free layer having a switchable magnetization orientation switchable, a ferromagnetic reference layer having a pinned magnetization orientation, and a non-magnetic spacer layer therebetween. The free layer may be circular, essentially circular or nearly circular.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: July 16, 2013
    Assignee: Seagate Technology LLC
    Inventors: Dimitar V. Dimitrov, Ivan Petrov Ivanov, Shuiyuan Huang, Antoine Khoueir, Brian Lee, John Daniel Stricklin, Olle Gunnar Heinonen, Insik Jin
  • Disc stack clamping with radially offset clamping surfaces
    Publication number: 20020034041
    Abstract: A data disc support assembly comprising a hub with a first axial end and a second axial end and a flange depending from the second axial end, the flange comprising a contact surface extending radially from the central axis between an inner contact surface radius and an outer contact surface radius and imparting a clamping force toward one surface of the disc. A clamp connected to the hub comprises a contact surface imparting a clamping force toward an opposing surface of the disc, the clamp contact surface extending radially from the central axis between in inner contact surface radius and an outer contact surface radius, wherein the flange contact surface and the clamp contact surface are substantially equivalent and radially offset.
    Type: Application
    Filed: June 29, 2001
    Publication date: March 21, 2002
    Inventors: Erming Luo, Roy Lynn, John Daniel Stricklin
  • Circumferentially extending disc snubber
    Patent number: 6271987
    Abstract: An apparatus is disclosed for reducing disc deflection in response to the application of a non-operational mechanical shock to a disc drive. The disc drive comprises discs rotatable about a disc axis and each having an outer diameter. A circumferentially extending snubber is provided proximate a substantial portion of the outer diameter of each of the discs. The snubber includes a shroud portion immediately proximate the outer diameter of each disc and snubber arms which extend from the shroud portion in a direction toward the disc axis. The snubber limits deflection of the outer diameter of each disc in response to the application of a nonoperational mechanical shock to the disc drive.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 7, 2001
    Assignee: Seagate Technology LLC
    Inventors: David Scott Allsup, Carl Fred Adams, John Daniel Stricklin
  • Circumferentially extending disc snubber
    Patent number: 6091569
    Abstract: An apparatus is disclosed for reducing disc deflection in response to the application of a non-operational mechanical shock to a disc drive. The disc drive comprises discs rotatable about a disc axis and each having an outer diameter. A circumferentially extending snubber is provided proximate a substantial portion of the outer diameter of each of the discs. The snubber includes a shroud portion immediately proximate the outer diameter of each disc and snubber arms which extend from the shroud portion in a direction toward the disc axis. The snubber limits deflection of the outer diameter of each disc in response to the application of a nonoperational mechanical shock to the disc drive.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: July 18, 2000
    Assignee: Seagate Technology, Inc.
    Inventors: David Scott Allsup, Carl Fred Adams, John Daniel Stricklin