Read head for magnetic storage system

Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head

Reexamination Certificate

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Reexamination Certificate

active

07952838

ABSTRACT:
A read head for a rotating magnetic storage system including concentric tracks is disclosed. The read head comprises a magnetoresistive (MR) sensor that reads information from a read track of the magnetic storage medium. First and second shields have a length greater than two tracks in a track width direction and define a gap therebetween, wherein the MR sensor is arranged in the gap. Inner magnetic portions of the first and second shields are spaced a first distance from the read track. Outer magnetic portions of the first and second shields are spaced a second distance from adjacent tracks to the read track, wherein the first distance is less than the second distance.

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patent: 2007-149134 (2007-06-01), None
patent: 2007-149135 (2007-06-01), None
Kaitsu et al; “Ultra High Density Perpendicular Magnetic Recording Technologies”; Jan. 2006; pp. 122-130.

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