Magnetic head and magnetic storage apparatus

Details Magnetic head and magnetic storage apparatus Magnetic head and magnetic storage apparatus

2006-05-30

2006-05-30

Tupper, Robert S. (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07054106

ABSTRACT:
Disclosed herein is a magnetic head for perpendicular recording in which the main magnetic pole has reduced remanent magnetization and is less liable to cause erasure after recording. These characteristic properties were realized by constructing the magnetic head such that the recording magnetic pole and the yoke are separate from each other and the main magnetic pole is formed from a material with a high saturation magnetic flux density and the yoke is formed from a material having a negative magnetostriction constant.

REFERENCES:
patent: 6513228 (2003-02-01), Khizroev et al.
patent: 6687085 (2004-02-01), Minor et al.
patent: 6791793 (2004-09-01), Chen et al.
patent: 6791796 (2004-09-01), Shukh et al.
patent: 2000-276707 (1999-03-01), None

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