Shielded magnetoresistive magnetic transducer

Details Shielded magnetoresistive magnetic transducer Shielded magnetoresistive magnetic transducer

1975-02-10

1976-02-24

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360122, 360123, 360125, G11B 516, G11B 522

Patent

active

039407977

ABSTRACT:
A magnetoresistive (MR) layer is placed offcenter the distance between two shields to enhance self-biasing. Information is carried on a magnetizable medium as recorded magnetic areas. The shields are spaced apart by a distance on the order of and less than the shortest recorded wavelength for which the head is meant to be used. The MR element and the shields have their edges nearest the medium in a common plane perpendicular to the vertical component of a signal from the recorded area. An additional shunt bias layer may be provided immediately adjacent and coextensive the MR element, and the head may serve one or many tracks.

REFERENCES:
patent: 2712601 (1955-07-01), Reinwald
patent: 3260980 (1966-07-01), Weiss
patent: 3493694 (1970-02-01), Hunt
patent: 3643035 (1972-02-01), Tsukagoshi
patent: 3716781 (1973-02-01), Almasi et al.
patent: 3731007 (1973-05-01), Masuda et al.
patent: 3887945 (1975-06-01), Nepela et al.
patent: R26610 (1969-06-01), Dekoster

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