Magnetic head for recording signals on and reproducing signals f

Details Magnetic head for recording signals on and reproducing signals f Magnetic head for recording signals on and reproducing signals f

1996-05-29

1998-02-17

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360103, G11B 548, G11B 2120

Patent

active

057197261

ABSTRACT:
A magnetic head comprising a magnetic core 1, a slider 2 constructed of a non-magnetic ceramic, a supporting plate 3 made of a metal which securely bonds the slider 2, and one or more grooves 4 formed in the surface of the supporting plate 3 which bonds the slider 2. The grooves 4 absorb or moderate warping stress exerted on the supporting plate 3 due to difference in the thermal expansion coefficients of the slider 2 and the supporting plate 3 to prevent warping deformation of the supporting plate 3, thus preventing distortion of the slider 2. This allows maintenance of the flatness of the top surface 2a of the slider 2, prevention of spacing loss, and recording and reproduction with a high degree of reliability.

REFERENCES:
patent: 5109175 (1992-04-01), Albert
patent: 5408372 (1995-04-01), Karam, II
patent: 5442504 (1995-08-01), Nagase et al.
patent: 5452158 (1995-09-01), Harrison et al.
patent: 5499153 (1996-03-01), Uemura et al.
patent: 5568332 (1996-10-01), Khan

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