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. 21, 1986
Filed:
Dec. 30, 1982
David L Beam, Cary, NC (US);
Glen P Double, Charlotte, NC (US);
International Business Machines Corp. (IBM), Armonk, NY (US);
Abstract
In hand-held magnetic readers, it is desirable that the magnetic read head be able to detect flux transitions on the surface of a magnetic media without requiring that the head have a specific orientation to the media. The present invention provides such a read head in which a thin planar magnetoresistive element is mounted so as to be perpendicular to the surface of the media. A thick yoke which is coplanar with the element provides a pole face adjacent the media surface which is sufficently wide as to extend over adjacent flux transitions when the plane of the element is skewed with respect to the flux transitions. A further pole face of the yoke is adjacent the edge of the element remote from the surface.