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Patent Searching and Data


Title:
PERPENDICULAR MAGNETIC RECORDING HEAD
Document Type and Number:
Japanese Patent JP2006004591
Kind Code:
A
Abstract:

To provide a perpendicular magnetic recording head which allows its recording magnetic field to be effectively guided to a main pole tip, and its side fringing to be suppressed.

This head is provided with an auxiliary magnetic pole layer 21 as a first magnetic section, a main pole layer 24 as a second magnetic section formed apart from the auxiliary magnetic pole layer 21, and a coil layer for supplying a recording magnetic field formed in a spacing between the auxiliary magnetic pole layer 21 and the main pole layer 24. A yoke layer 135 is formed in contact with the main pole layer 24, and the width dimension of the yoke layer 135 gradually or continuously spreads toward the backside in the height direction, and toward a lower surface from an upper surface.


Inventors:
KAMEDA HIROSHI
Application Number:
JP2004377393A
Publication Date:
January 05, 2006
Filing Date:
December 27, 2004
Export Citation:
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Assignee:
ALPS ELECTRIC CO LTD
International Classes:
G11B5/31; G11B5/127; G11B5/147
Attorney, Agent or Firm:
野▲崎▼ 照夫
Masayoshi Miwa