Dynamic magnetic information storage or retrieval – Head – Plural gaps
Reexamination Certificate
2011-07-12
2011-07-12
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Plural gaps
C360S241100
Reexamination Certificate
active
07978429
ABSTRACT:
A low track pitch write module and bidirectional tape head for writing and/or reading data on a magnetic recording tape. The write module and tape head have a tape bearing surface for engaging the magnetic recording tape and plural write elements. The write elements are arranged so that the write gaps of adjacent write elements are spaced from each other by not more than approximately one write gap width, while being generally aligned along an axis that is perpendicular to a direction of movement of the magnetic recording tape. The write elements may have a planar or vertical construction comprising plural thin film layers oriented in generally parallel or perpendicular relationship with the tape bearing surface. One or more read element arrays may also be provided.
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“Thin Film and Thin Film Ferrite Hybrid Magnetic Head,” IBM Technical Disclosure Bulletin, Jun. 1975, pp. 19-22.
Duft Walter W.
Garcia Carlos E
International Business Machines - Corporation
Renner Craig A.
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