Magnetic head and magnetic disk storage apparatus mounting...

Details Magnetic head and magnetic disk storage apparatus mounting... Magnetic head and magnetic disk storage apparatus mounting...

2008-09-16

2008-09-16

Cao, Allen T (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

11173730

ABSTRACT:
Embodiments of the invention provide a magnetic head which prevents data on a recording medium from being erased even when a stray field is applied. In one embodiment, an auxiliary pole is sandwiched between a stray-field shield composed of a magnetic layer recessed from the air bearing surface and a main pole. The stray-field shield may be formed on the leading side of the auxiliary pole. A face of the stray-field shield on a medium side may be recessed from an air-bearing-surface of the magnetic head.

REFERENCES:
patent: 5822153 (1998-10-01), Lairson et al.
patent: 6185077 (2001-02-01), Tong et al.
patent: 6842313 (2005-01-01), Mallary
patent: 2003/0026039 (2003-02-01), Okada et al.
patent: 2003/0043513 (2003-03-01), Lin
patent: 2005/0135007 (2005-06-01), Nishikawa et al.
patent: 2003-045008 (2003-02-01), None

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