Magnetic head and magnetic recording-reproducing apparatus

Details Magnetic head and magnetic recording-reproducing apparatus Magnetic head and magnetic recording-reproducing apparatus

2007-12-11

2011-10-18

Watko, Julie Anne (Department: 2627)

Dynamic magnetic information storage or retrieval

Record medium

Disk

C360S319000

Reexamination Certificate

active

08040633

ABSTRACT:
A magnetic recording-reproducing apparatus includes: a magnetic recording medium in which portions corresponding to track portions serve as recording areas and in which portions between the recording areas serve as non-recording areas; and a magnetic head having a main pole and a side shield disposed on both sides of the main pole in a cross-track direction. In the magnetic recording-reproducing apparatus, following inequality (I) is satisfied:in-line-formulae description="In-line Formulae" end="lead"?S>Tw/2+Gw  (I)in-line-formulae description="In-line Formulae" end="tail"?where Tw is a track width, Gw is a gap width, and S is a distance between the center of the main pole of the magnetic head and an edge on the main pole side of each of the side shields.

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