Composite thin film transducer head

Details Composite thin film transducer head Composite thin film transducer head

1983-06-27

1986-05-13

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360122, 360123, G11B 512, G11B 522, G11B 520

Patent

active

045890420

ABSTRACT:
A film type magnetic transducer head has a yoke formed partially of high permeability material which provides enhanced read capabilities and partially of high saturation magnetization material to obtain the write function benefits associated therewith. The high saturation magnetization material is used in the pole tip region and extends to a location beyond the point of initial saturation and does not extend to a position at which the first coil winding is embraced to prevent or minimize coupling with the windings. With the balance of the joke of high permeability material, the transducer functions substantially as a wholly high saturation magnetization yoke in the write function and as a wholly high permeability material yoke for read purposes.

REFERENCES:
patent: 4190872 (1980-02-01), Jones, Jr. et al.

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