Magnetic recording media with Cu-containing magnetic layers

Details Magnetic recording media with Cu-containing magnetic layers Magnetic recording media with Cu-containing magnetic layers

2007-10-16

2007-10-16

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

Reexamination Certificate

active

10827421

ABSTRACT:
A magnetic recording medium including at least one Cu-containing magnetic recording layer (CuML) comprised of a Cu-containing magnetic alloy material selected from the group consisting of:(a) a CoCrPtBCu alloy having a composition represented by the formula Co100-x-y-z-αCrxPtyBzCuα, wherein 0<x≦20, 0<y≦30, 0<z≦24, and 0<α≦10;(b) a CoCrPtBCu alloy having a composition represented by the formula Co100-x-y-z-αCrxPtyBzCuα, wherein 0<x≦30, 0<y≦30, 7<z≦24, and 0<α≦10; and(c) a CoCrTaCu alloy having a composition represented by the formula Co100-x-y-αCrxTayCuα, containing less than 30 at. % Cr, up to 8 at. % Ta, and up to 10 at. % Cu.

REFERENCES:
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patent: 7074508 (2006-07-01), Ajan
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English abstract of JP 08-031638, Feb. 1996, Kubota Corp.
Pending U.S. Appl. No. 11/361,004, filed Feb. 24, 2006 entitled “Magnetic Storage Media With Ag, Au-Containing Magnetic Layers”.

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