Magnetic recording head having a switching layer which may...

Details Magnetic recording head having a switching layer which may... Magnetic recording head having a switching layer which may...

2006-01-24

2009-02-10

Evans, Jefferson (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125310, C360S125120

Reexamination Certificate

active

07489473

ABSTRACT:
A magnetic head includes a first magnetic layer in which a face, opposed to a recording medium, having a size equal to a track width in a track width direction; a second magnetic layer in which a face, opposed to the recording medium, having a size greater than the track width in the track width direction, the first and second magnetic layers being spaced from each other in an element thickness direction, the first and second magnetic layers being connected to each other at a region located in a height direction; and a coil layer, located far from the opposed faces, for applying recording magnetic fields to the first and second magnetic layers such that magnetic data is recorded on the recording medium with a perpendicular magnetic field concentrated on the first magnetic layer.

REFERENCES:
patent: 4907340 (1990-03-01), Fang et al.
patent: 6650598 (2003-11-01), Sakakima et al.
patent: 6848169 (2005-02-01), Shin et al.
patent: 2002/0008931 (2002-01-01), Hosokawa et al.
patent: 2002/0060882 (2002-05-01), Kidachi et al.
patent: 2002/0116978 (2002-08-01), Yamaguchi et al.
patent: 2004/0082161 (2004-04-01), Ho et al.
patent: 58-008667 (1983-01-01), None
patent: 1-227279 (1989-09-01), None
patent: 2000-339894 (2000-12-01), None
patent: 2001-357644 (2001-12-01), None
patent: 2002-015410 (2002-01-01), None
patent: 2002-170351 (2002-06-01), None
patent: 2002-260358 (2002-09-01), None
patent: 2004-062946 (2004-02-01), None
patent: 2004-82161 (2004-03-01), None
patent: 2004-139676 (2004-05-01), None
Notification of Reasons for Refusal for corresponding Japanese Patent Application Serial No. 2005-020504 dated May 29, 2007.

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