Read/write magnetic head assembly with magnetoresistive sensor

Details Read/write magnetic head assembly with magnetoresistive sensor Read/write magnetic head assembly with magnetoresistive sensor

1979-06-29

1981-03-10

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 512, G11B 530

Patent

active

042557720

ABSTRACT:
A thin film magnetic head assembly incorporates a nonconductive magnetic substrate which serves as a first pole piece and a thin film magnetic layer for the second pole piece. A magnetoresistive (MR) element is disposed between the pole pieces. During the write mode, the MR element serves as a partial write turn to enhance the write signal current applied to a conductor means. During the read mode, the conductor means serves as a magnetic shield, and the transducing gap is effectively narrowed.

REFERENCES:
patent: 3823416 (1974-07-01), Warner
patent: 3887945 (1975-06-01), Nepela et al.
patent: 3908194 (1975-09-01), Romankiw
patent: 3975772 (1976-08-01), Lin
Smith, "Mr. Mag Head", IBM Tech. Disc. Bull., vol. 18, No. 1, Jun. 1975, p. 24.
Brock et al., "Mr. R/W Head", IBM Tech. Disc. Bull., vol. 15, No. 4, Sep. 1972, p. 1206.

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