Vertical recording magnetic head

Details Vertical recording magnetic head Vertical recording magnetic head

1989-03-22

1991-03-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360110, 360128, 360129, 3601303, G11B 5127, G11B 511, G11B 1560

Patent

active

050034235

ABSTRACT:
A vertical recording magnetic head is disposed for movement close to or into sliding contact with a vertical recorded magnetic medium for purpose of magnetic recording and playback. To prevent the influences of external magnetic field upon a recording or reproduced magnetic field, a main magnetic pole of the head is surrounded by a block of a magnetizable material which exhibits a high permeability, which serves as a magnetic shield.

REFERENCES:
patent: 4374403 (1983-02-01), Oshima et al.
patent: 4649448 (1987-03-01), Nakajima
patent: 4677512 (1987-06-01), Akiyama et al.
patent: 4745509 (1988-05-01), Watanabe et al.

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