Three pole single element magnetic read/write head
AssigneeInternational Business Machines Corporation
InventorDavid E. Heim
Life of this patent
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AssigneeInternational Business Machines Corporation
InventorDavid E. Heim
Estimating the term…
A magnetic head has three pole pieces that form a magnetic circuit. The magnetic pole pieces are arranged in a common plane so that the two outside pole pieces are each spaced from the central pole piece to form a transducing gap between each of the outside pole pieces and the central pole piece. A first and a second coil, each having the same magnetic sense, is wound on the magnetic structure between an outside and the center pole piece. The coils are connected in series for a write operation so that the flux in the outside pole pieces is additive for writing, and the coils are connected in series opposition for a read operation so that the flux produced in the center pole by a previously recorded magnetic transition in the magnetic recording medium adjacent to the transducing gaps is sensed additively in the coils.
A magnetic head structure for recording and reading magnetic transitions on a selectable one of a plurality of tracks on a magnetic recording medium comprising:
Dependencies are inferred from the claim text.