The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2016
Filed:
Aug. 27, 2014
U.s. Army Research Laboratory, Washington, DC (US);
Alan S. Edelstein, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A nonvolatile memory comprising at least one ferromagnetic region having permittivity which changes from a first state to a second state of lower permittivity upon heating; at least one heater operatively associated with the at least one ferromagnetic region which selectively provides heat to the ferromagnetic region to change its permittivity; and a plurality of connectors operatively connected to the at least one heater and adapted to be connected to a current source that provides a current which causes the heater to change the at least one ferromagnetic region from a first state to a second state. Optionally, the memory is arranged as an array of memory cells. Optionally, each cell has a magnetic field sensor operatively associated therewith. Optionally, the nonvolatile memory is radiation hard. Also, a method of recording data by heating at least one ferromagnetic region to change its permittivity.