Controlled saturation thin film magnetic write head

Details Controlled saturation thin film magnetic write head Controlled saturation thin film magnetic write head

1995-03-06

1997-02-04

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147, G11B 5187

Patent

active

056005199

ABSTRACT:
A thin film magnetic head in which the width of the first and second magnetic yoke layers between the zero throat point and the yoke flare point is progressively widened to equalize the flux density over this length so that the whole length reaches saturation simultaneously at a single current. Consequently, the field at the gap at the air bearing surface increases insignificantly once saturation of this length occurs, and the write field is then constant for currents above the saturation value.

REFERENCES:
patent: 4819111 (1989-04-01), Keel et al.
patent: 4839197 (1989-06-01), Henderson
patent: 4878290 (1989-11-01), Masud et al.
patent: 5134535 (1992-07-01), Mallary
patent: 5168410 (1992-12-01), Liao
patent: 5245493 (1993-09-01), Kawabe et al.
patent: 5255142 (1993-10-01), Williams et al.
patent: 5325254 (1994-06-01), Cooperrider
patent: 5373408 (1994-12-01), Bischoff
patent: 5479310 (1995-12-01), Atsushi et al.

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