Thin film magnetic head with pole having variable thickness

Details Thin film magnetic head with pole having variable thickness Thin film magnetic head with pole having variable thickness

1996-10-04

1998-03-31

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

360119, G11B 523, G11B 5147

Patent

active

057345368

ABSTRACT:
A lower pole gradually increases its thickness in a section from the pole front end surface toward the depth direction. An upper pole gradually increases its thickness in a section from the pole front end surface toward the depth direction. The lower pole has a constriction at an area deeper than the gradually increasing section.

REFERENCES:
patent: 5331497 (1994-07-01), Fuchigami
patent: 5479310 (1995-12-01), Atsushi et al.

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