Dynamic magnetic information storage or retrieval – Head – Core
Patent
1999-06-15
2000-09-12
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Core
G11B 5147
Patent
active
061186295
ABSTRACT:
A magnetic head includes first and second pole tip layers separated by a nonmagnetic gap layer. The pole tips are made of a high magnetic moment material. The right side walls of the first and second pole tips are vertically aligned with each other. Similarly, the left side walls of the first and second pole tips are vertically aligned with one another. The side fringing flux from one pole tip to another is substantially reduced resulting in a magnetic head capable of writing data tracks with well defined boundaries. The possibility of the pole tips operating in magnetic saturation is reduced because the pole tips, formed of high magnetic moment material, is capable of accommodating high coercive force. The magnetic head can be fabricated as an inverted head or a non-inverted head capable of writing on magnetic media with high coercivity and at a high data transfer rate.
REFERENCES:
patent: 5452164 (1995-09-01), Cole
patent: 5793578 (1998-08-01), Heim
Corona Carlos
Huai Yiming
Jensen William D.
Ravipati Durga P.
Thomas Mark D.
Heinz A. J.
Kallman Nathan N.
Read-Rite Corporation
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