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. 17, 1977
Filed:
Nov. 18, 1975
Applicant:
Inventors:
Christopher Henry Bajorek, Goldens Bridge, NY (US);
Robert Douglas Hempstead, Yorktown Heights, NY (US);
Sol Krongelb, Somers, NY (US);
Ashok Frank Mayadas, Somers, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; G11B / ; H01C / ;
U.S. Cl.
CPC ...
338 / ; 324 46 ; 428216 ; 428413 ; 428433 ; 428900 ; 428660 ; 428666 ; 428667 ; 428209 ; 428210 ;
Abstract
A magnetoresistive permalloy film is deposited upon a substrate and coated with a separating layer composed of titanium or a similar high resistivity, conductive material. A soft biasing layer of a material such as permalloy or a hard biasing material such as cobalt chromium is deposited upon the separating layer to complete a sandwich. All layers are coextensive in outline because their outlines are formed by a single etching step.