Patents by Inventor Silas J. Allen, Jr.

Silas J. Allen, Jr. 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 for the preparation of epitaxial ferromagnetic manganese aluminum magnetic memory element
    Patent number: 5169485
    Abstract: A non-volatile memory element based upon a thin epitaxial film of manganese aluminum upon a III-V semiconductor is described. The film is stable at elevated temperatures required for III-V semiconductor device processing, so permitting the monolithic integration of non-volatile memory elements with III-V semiconductor electronic and photonic devices.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 8, 1992
    Assignee: Bell Communications Research, Inc.
    Inventors: Silas J. Allen, Jr., James P. Harbison, Mark L. Leadbeater, Ramamoorthy Ramesh, Timothy D. Sands