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US 6,650,598 B2Granted
Magnetic head having magnetoresistance device and recording/reproducing apparatus incorporating the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Sakakima, Masahiro Birukawa, Kazuo Yokoyama, Masayoshi Hiramoto
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Abstract
A magnetic head for reproducing a signal recorded on a recording medium, includes a substrate, a magnetic head core provided on the substrate, having a magnetic gap, and a magnetoresistance device provided on the magnetic head core. The magnetic head core is provided in such a manner that a thickness direction of the magnetic head core around the magnetic gap is substantially the same as a track width direction of the recording medium.
Claims26
A magnetic head for reproducing a signal recorded on a recording medium, comprising:
- a substrate;
- a magnetic head core provided on the substrate, having a magnetic gap;
- and
- a first magnetoresistance device provided an the magnetic head core,
- wherein the first magnetoresistance device comprises:
- a first insulating layer provided on the magnetic head core;
- and
- a first pinned layer provided on a side of the first insulating layer opposite to the magnetic head core, wherein a magnetization direction is not easily rotated in the first pinned layer,
- wherein the magnetic head core comprises a first soft magnetic layer provided at a position corresponding to the first insulating layer, and the first soft magnetic layer functions as a first free layer of the first magnetoresistance device, wherein a magnetization direction is easily rotated in the first free layer.
6 more elements
Dependencies are inferred from the claim text.