Magnetic write transducer with variable write gap length
AssigneeInternational Business Machines Corporation
InventorsHugo E. Rothuizen, Mark Alfred Lantz, Jason Liang, Icko E. T. Iben
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Abstract
In an approach to improve write transducers a write transducer for recording data on a magnetic media is disclosed. The write transducer comprises a first pole piece. The write transducer further comprises a second pole piece. The first pole piece and the second pole piece are arranged in such a way, that a write gap is formed between the first pole piece and the second pole piece. A longitudinal axis is defined between opposite ends of the write gap. A length of the write gap along the longitudinal axis varies in the direction transverse to the longitudinal axis.
Claims16
A magnetic write transducer for recording data on a magnetic media, the magnetic write transducer comprising:
- a first pole piece;
- a second pole piece;
- and
- a write gap defined between the first pole piece and the second pole piece, wherein the write gap is subdivided into at least two width portions of constant length, and wherein the second pole piece defines a planar surface facing the at least two width portions of constant length, and wherein the first pole piece is designed in such a way that a central portion of the write gap is widened compared to lateral portions of the write gap, wherein each lateral portion of the write gap defines a first gap length and the central portion of the write gap defines a second gap length greater than the first gap length, and wherein the write gap gradually decreases in length from the central portion of the write gap to at least one of the lateral portions along an inclined surface defined by the first pole piece.
A longitudinal magnetic recording system for recording data on a magnetic tape, the longitudinal magnetic recording system comprising:
- a magnetic media;
- and
- at least one magnetic write transducer for recording data on the magnetic media, wherein the at least one magnetic write transducer comprises:
- a first pole piece;
- a second pole piece;
- and
- a write gap defined between the first pole piece and the second pole piece, wherein the write gap is subdivided into at least two width portions of constant length, and wherein the second pole piece defines a planar surface facing the at least two width portions of constant length, and wherein the first pole piece is designed in such a way that a central portion of the write gap is widened compared to lateral portions of the write gap, wherein each lateral portion of the write gap defines a first gap length and the central portion of the write gap defines a second gap length greater than the first gap length, and wherein the write gap gradually decreases in length from the central portion of the write gap to at least one of the lateral portions along an inclined surface defined by the first pole piece.
Dependencies are inferred from the claim text.