Magnetic head core utilizing a non-magnetic layer

Details Magnetic head core utilizing a non-magnetic layer Magnetic head core utilizing a non-magnetic layer

1990-08-08

1991-06-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

29603, 360120, G11B 5133

Patent

active

050253433

ABSTRACT:
A magnetic head core having a generally annular structure with an inner coil-winding aperture, and a magnetic gap which has a predetermined width and which is formed so as to extend in a direction across the annulus of the annular structure. The annular structure is formed by a plurality of ferrite core elements bonded together by direct solid-solid reaction bonding, with a non-magnetic layer of SiO or SiO.sub.2 interposed between two opposed portions of the ferrite core elements which define the magnetic gap. The non-magnetic layer defines the width of the magnetic gap.

REFERENCES:
patent: 3624897 (1971-12-01), Reade et al.
patent: 3634933 (1972-01-01), Hanak
patent: 3672045 (1972-06-01), Robertson
patent: 3688056 (1972-08-01), Wiseley et al.
patent: 4675988 (1987-06-01), Matsuzawa
patent: 4711018 (1987-12-01), Matsuzawa

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