Discrete track magnetic recording medium with lift-adjusting...

Details Discrete track magnetic recording medium with lift-adjusting... Discrete track magnetic recording medium with lift-adjusting...

2004-07-15

2008-09-09

Watko, Julie Anne (Department: 2627)

Dynamic magnetic information storage or retrieval

Record medium

Disk

Reexamination Certificate

active

07423841

ABSTRACT:
A magnetic recording medium capable of preventing contact with a magnetic head for use in recording or reproduction, during recording or reproducing of record data. The magnetic recording medium has a disk-shaped substrate having a surface formed with an annular data-recording area, an outer area outward of the data-recording area, and an inner area inward of the same. The annular data-recording area has a plurality of tracks separated from each other by concentric separating grooves. At least one of the outer area and the inner is subjected to lift-adjusting treatment for enabling adjustment of lifts applied to the magnetic head. This makes it possible to effectively prevent the magnetic head from being inclined to be brought into contact with the magnetic recording medium.

REFERENCES:
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patent: 6057984 (2000-05-01), Arita et al.
patent: 6075683 (2000-06-01), Harwood et al.
patent: 6563673 (2003-05-01), Mundt et al.
patent: 7016154 (2006-03-01), Nishihira
patent: 2005/0134992 (2005-06-01), Homola et al.
patent: 2006/0172153 (2006-08-01), Kikitsu et al.
patent: 4-310621 (1992-11-01), None
patent: 5-210929 (1993-08-01), None
patent: 10-177718 (1998-06-01), None
patent: 2001-034929 (2001-02-01), None
IBM TDB, “Disk Pattern to Boost the Fly Height of an Air Bearing Slider”, Aug. 1994, v. 37, No. 8, pp. 189-190.
English Language Abstract of JP 4-310621.
English language Abstract of JP 10-17718.
English language Abstract of JP 5-210929.

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