Thin-film magnetic head for reading and writing information

Details Thin-film magnetic head for reading and writing information Thin-film magnetic head for reading and writing information

1979-01-04

1981-11-10

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360119, G11B 512, G11B 530

Patent

active

043001777

ABSTRACT:
A thin-film magnetic head for writing information in and reading information from a track of a magnetic recording medium in which the head comprises a magnetically permeable yoke having two limbs between which a writing/reading gap is formed. In a construction in which the limbs of the yoke overlap each other at the area of the writing/reading gap, they are bridged by a magneto-resistive reading element at a location remote from the reading/writing gap. A conductor is provided in some forms of the invention which extends intermediate the laterally overlapping limbs. This conductor is utilized for producing a writing flux in the magnetic yoke. Another conductor may be provided which extends through a window or opening in the yoke, which is remote from the reading/writing gap. This other conductor is utilized during writing operation to maximize efficiency.

REFERENCES:
patent: 2852617 (1958-09-01), Thiele
IBM/TDB vol. 15, No. 4, Sep. '72, pp. 1206-1207, "Magnetoresistive Read/Write Head" by Brock et al.

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