Magnetic recording head with non-conformal side shield gap

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United States of America Patent

PATENT NO 8570686
APP PUB NO 20130242431A1
SERIAL NO

13419283

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Abstract

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A magnetic write head having a shield structure that provides both a leading shield and side shielding function. The magnetic shield is separated from the sides and leading edge of the write pole by a non-magnetic gap layer that has a non-uniform thickness. The non-magnetic gap layer is thicker near the leading edge and thinner at the trailing edge. This allows for increased side field gradient near the trailing edge of the write pole and decreased write field loss at the leading edge of the write pole.

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Patent Owner(s)

  • HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.;WESTERN DIGITAL TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eto, Kimitoshi Odawara, JP 4 41
Hashimoto, Junichi Kanagawa, JP 239 1676
Hosomi, Kazuhiko Fujisawa, JP 24 456
Kanai, Misuzu Odawara, JP 7 80
Kudo, Kazue Odawara, JP 46 299
Sugiyama, Mikito Odawara, JP 40 584

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