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:
May. 07, 1991
Filed:
Oct. 31, 1989
Applicant:
Inventors:
Stuart S Parkin, San Jose, CA (US);
Kevin P Roche, San Jose, CA (US);
Virgil S Speriosu, San Jose, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360113 ;
Abstract
An improved thin film magnetoresistive (MR) sensor uses an alloy comprising Fe.sub.(1-x) Mn.sub.x, where x is within the range of 0.3 to 0.4, as an antiferromagnetic layer to provide longitudinal exchange bias in the ferromagnetic MR layer. In a specific embodiment the exchange bias is at a high level and is independent of thickness of the antiferromagnetic layer over a wide range.
Quick Actions:
Parkin, Stuart. (1991). Magnetoresistive sensor with improved antiferromagnetic film (U.S. Patent No. 5014147). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5014147
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile