Magnetic transduction device with magnetoresistances

Details Magnetic transduction device with magnetoresistances Magnetic transduction device with magnetoresistances

1979-12-18

1982-02-09

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360120, 360123, 360125, G11B 522, G11B 520, G11B 530

Patent

active

043152910

ABSTRACT:
A magnetic transduction device for reading and/or writing of data contained on a magnetic support such as a disc or magnetic tape comprises a magnetic circuit formed by two thin superposed magnetic layers magnetically coupled at one end and forming an air gap at the other end, and a coil between said thin magnetic layers formed by thin conductive layers separated by thin insulating layers. At least one of the thin conducting layers comprises at least one magnetoresistance.

REFERENCES:
patent: Re29326 (1977-07-01), Lazzari
patent: 3887945 (1975-06-01), Nepela et al.
patent: 3921217 (1975-11-01), Thompson
patent: 4190872 (1980-02-01), Jones, Jr. et al.
IBM Tech. Disc. Bull., L. T. Romankiw et al., Thin Film and Thin Film Ferrite Hybrid Magnetic Heads, vol. 18, No. 1, Jun. 1975, pp. 19-22.
IBM Tech. Disc. Bull., S. H. Smith, Magnetoresistive Magnetic Head, vol. 18, No. 1, Jun. 1975, p. 24.
IBM Tech. Disc. Bull., G. W. Brock et al., Magnetoresistive Read/Write Head, vol. 15, No. 4, Sep. 1972, pp. 1206-1207.

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