Thin film magnetic head for use in vertical magnetic recording

Details Thin film magnetic head for use in vertical magnetic recording Thin film magnetic head for use in vertical magnetic recording

1987-03-10

1989-02-21

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

048070769

ABSTRACT:
A thin film magnetic head for use in the vertical magnetic recording having a main magnetic pole for carrying out recording and reproduction on and from a recording medium, and an auxiliary magnetic pole for cooperating with the main magnetic pole to form a closed magnetic circuit wherein the dimension of the auxiliary magnetic pole is made larger than that of the main magnetic pole at its end facing the recording medium and in their tracking direction to enhance reproduction efficiency.

REFERENCES:
patent: 4546398 (1985-10-01), Toda
patent: 4575777 (1986-03-01), Hosokawa

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