Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2008-05-20
2008-05-20
Castro, Angel (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07375925
ABSTRACT:
A pole layer incorporates: a first portion having an end face located in a medium facing surface; and a second portion having a thickness greater than that of the first portion. A surface of the first portion closer to a substrate is located farther from the substrate than a surface of the second portion closer to the substrate. A surface of the first portion farther from the substrate is located closer to the substrate than a surface of the second portion farther from the substrate. At least a portion of the pole layer is placed in an encasing groove formed in a region extending from a first encasing layer through a second encasing layer to a nonmagnetic metal layer.
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Araki Hironori
Ishizaki Kazuo
Itoh Hiroyuki
Sasaki Yoshitaka
Tanemura Shigeki
Castro Angel
Headway Technologies Inc.
Oliff & Berridg,e PLC
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