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US 4,071,868 AGranted
Narrow track MR head with side shields
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNobuyuki Kaminaka, Kenji Kanai, Norimoto Nouchi, Noboru Nomura
Life of this patent
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Abstract
A magnetic head consists of a magnetic flux converging core having a magnetic gap and a magnetoresistive effect element which forms a magnetic circuit and which is arranged in the same plane as the magnetic gap. The direction of thickness of the magnetic circuit is aligned with the direction of width of a track of a record medium, and shielding plates of ferromagnetic material are arranged on both sides of the plane.
Claims7
A magnetic head for use with a record medium having at least one track therein, comprising:
- a magnetic circuit element including,
- a ferromagnetic material section having a magnetic gap, and
- a magnetoresistive effect element section situated in the same plane as said ferromagnetic material section, and
- ferromagnetic shielding plates positioned on both sides of said magnetic circuit element, the thickness direction of said magnetic circuit element coinciding with the width direction of a track in said record medium.
1 more element
Dependencies are inferred from the claim text.