Dynamic magnetic information storage or retrieval – Head – Coil
Reexamination Certificate
2006-01-24
2009-06-02
Heinz, A. J. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Coil
C360S125160
Reexamination Certificate
active
07542233
ABSTRACT:
A perpendicular magnetic recording element includes a recording magnetic pole film and a write shield film. The recording magnetic pole film has a yoke portion and a main magnetic pole for perpendicular recording. The main magnetic pole projects from a front end of the yoke portion to have an end on a medium-facing surface. The write shield film faces the recording magnetic pole film and has a height equal to or smaller than that of the recording magnetic pole film, as measured rearward from the medium-facing surface.
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English Machine Translation of JP 2004-348928.
Hirata Kei
Machita Takahiko
Noguchi Kiyoshi
Heinz A. J.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
TDK Corporation
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