Patents by Inventor Jian-Gang (Jimmy) Zhu

Jian-Gang (Jimmy) Zhu 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).

  • Method of writing data with binary anisotropy media
    Patent number: 8675456
    Abstract: A method of writing binary data comprising (i) heating a magnetic microstructure from an initial temperature to an above-ambient temperature that is not less than a transition temperature for the magnetic microstructure, which causes a phase transition interlayer of the magnetic microstructure to transition from an antiferromagnetic phase to a ferromagnetic phase; and (ii) reversing an orientation of magnetization of a magnetic storage layer of the magnetic microstructure with a magnetic field while the phase transition interlayer is in the ferromagnetic phase.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 18, 2014
    Assignee: Carnegie Mellon University
    Inventors: Jian-Gang (Jimmy) Zhu, David E. Laughlin
  • Magnetic switching cells and methods of making and operating same
    Patent number: 8476925
    Abstract: Logic circuits based, at least in part, on use of spin-torque transfer (STT) to switch the magnetization—and hence the logic state—of a magnetic material are disclosed. Aspects of the invention include novel STT-based switching devices, new configurations of known STT-based devices into useful logic circuits, common logic circuits and system building blocks based on these new devices and configurations, as well as methods for inexpensively mass-producing such devices and circuits.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 2, 2013
    Inventors: Jian-Gang (Jimmy) Zhu, Lawrence T. Pileggi
  • Magnetic logic circuits and systems incorporating same
    Patent number: 8400066
    Abstract: Logic circuits based, at least in part, on use of spin-torque transfer (STT) to switch the magnetization—and hence the logic state—of a magnetic material are disclosed. Aspects of the invention include novel STT-based switching devices, new configurations of known STT-based devices into useful logic circuits, common logic circuits and system building blocks based on these new devices and configurations, as well as methods for inexpensively mass-producing such devices and circuits.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: March 19, 2013
    Inventors: Lawrence T. Pileggi, Jian-Gang (Jimmy) Zhu
  • Magnetic Switching Cells and Methods of Making and Operating Same
    Publication number: 20120134199
    Abstract: Logic circuits based, at least in part, on use of spin-torque transfer (STT) to switch the magnetization—and hence the logic state—of a magnetic material are disclosed. Aspects of the invention include novel STT-based switching devices, new configurations of known STT-based devices into useful logic circuits, common logic circuits and system building blocks based on these new devices and configurations, as well as methods for inexpensively mass-producing such devices and circuits.
    Type: Application
    Filed: October 5, 2010
    Publication date: May 31, 2012
    Inventors: Jian-Gang (Jimmy) Zhu, Lawrence T. Pileggi