Perpendicular magnetic head
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United States of America Patent
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-
Aug 16, 1988
Grant Date -
N/A
app pub date -
Dec 23, 1985
filing date -
Mar 20, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A perpendicular magnetic head for magnetizing a magnetic recording medium in the direction of thickness thereof comprises a main pole film of a magnetically soft material having a high magnetic permeability which is held sandwiched between a first and a second joined block, each formed of a non-magnetic material. A multi-layer film comprising alternate layers of a magnetically soft material having a high permeability and a non-magnetic material is disposed on at least one of the blocks in abutting relationship with the main pole film at a given distance spaced from an area of the main pole film which is disposed in sliding contact with a magnetic recording medium.
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