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:
Sep. 02, 2003
Filed:
Oct. 09, 2001
Applicant:
Inventors:
Russell Cowburn, Cambridge, GB;
Mark Welland, Cambridge, GB;
Assignee:
Cambridge University Technical Services Ltd., Cambridge, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/714 ; H01L 2/982 ; H01L 2/984 ;
U.S. Cl.
CPC ...
H01L 2/714 ; H01L 2/982 ; H01L 2/984 ;
Abstract
A memory element comprising nanomagnets having a rotational symmetry selected in order to provide high remanence and a suitable coercivity. There is also a sensor element comprising nanomagnets having a rotational symmetry selected such that they are superparamagnetic and exhibit substantially zero hysteresis so that a magnetisation of the nanomagnets depends only on the current value of applied field and not on the field history.