Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2005-05-16
2010-02-16
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S125130
Reexamination Certificate
active
07663839
ABSTRACT:
A pole layer has: a first portion having an end face located in a medium facing surface; and a second portion that is located farther from the medium facing surface than the first portion and has a thickness greater than that of the first portion. A surface of the first portion farther from a substrate is located closer to the substrate than a surface of the second portion farther from the substrate. The second portion has a front end face that couples the surface of the first portion farther from the substrate to the surface of the second portion farther from the substrate. A shield layer has a portion located between the front end face and the medium facing surface in a region closer to the substrate than the surface of the second portion farther from the substrate.
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Horinaka Takehiro
Ishizaki Kazuo
Itoh Hiroyuki
Sasaki Yoshitaka
Tanemura Shigeki
Garcia Carlos E.
Headway Technologies Inc.
Oliff & Berridg,e PLC
Renner Craig A.
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