Magnetic head for perpendicular magnetic recording including...

Details Magnetic head for perpendicular magnetic recording including... Magnetic head for perpendicular magnetic recording including...

2011-04-26

2011-04-26

Miller, Brian E (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S319000, C360S125020

Reexamination Certificate

active

07933095

ABSTRACT:
A magnetic head includes a pole layer and a shield. The shield includes a shield layer having a front end face located in the medium facing surface at a position forward of an end face of the pole layer along a direction of travel of the recording medium. The magnetic head further includes a stopper layer for suppressing protrusion of the front end face of the shield layer, the stopper layer being disposed adjacent to the shield layer and made of a nonmagnetic material having a linear thermal expansion coefficient of 5×10−6/° C. or smaller at a temperature of 25° C. to 100° C.

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Japanese Office Action in Japanese Patent Application No. 2008-185706, dated Jun. 2, 2010 (with English translation).

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