Magnetic head which minimizes the effect of minute variations in

Details Magnetic head which minimizes the effect of minute variations in Magnetic head which minimizes the effect of minute variations in

1976-09-27

1978-04-25

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360123, 360125, G11B 516, G11B 520, G11B 522

Patent

active

040866394

ABSTRACT:
The magnetic head of the present invention has a core thickness set up in accordance with the range of the permeability drop starting frequency of the core material which is determined to reduce the influence imparted to the reproducing frequency characteristic of the head by any minute variation in the technique of making the head gap. The core thickness of the magnetic head may be attained by using a smaller number of superposed layers to form the core than in a conventional magnetic head, and in some cases, a single layer of the core may be used to provide the track width.

REFERENCES:
patent: 2912515 (1959-11-01), Lufcy
patent: 2992474 (1961-07-01), Adams et al.
patent: 3365709 (1968-01-01), Gooch
patent: 3582572 (1971-06-01), Camras
patent: 3651278 (1972-03-01), Chupity et al.
patent: 3661570 (1972-05-01), Moss
patent: 3999216 (1976-12-01), Berchtold

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