Magnetic recording media and magnetic disk apparatus

Details Magnetic recording media and magnetic disk apparatus Magnetic recording media and magnetic disk apparatus

2005-02-08

2005-02-08

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S690000, C428S690000, C428S336000, C428S900000

Reexamination Certificate

active

06852432

ABSTRACT:
A magnetic recording media formed of magnetic alloy layer of Co as the main component on a substrate through an under-layer, a protective layer and a lubricant layer, stacked in this order, said under-layer comprises plural under-layers including a first under layer of a substantially amorphous and a second under layer of crystalline stacked in this order; and a Δ BH[0.01, 50] defined by |BH[0.01%]−BH[50%]|, as the difference between a height BH[0.01%] where a Bearing ratio is 0.01% and a height BH[50%] where a Bearing ratio is 50%, is not less than 3 nm and not more than 6 nm, where a Bearing Curve is given by a surface roughness curve of magnetic recording media.

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Machine translation of JP 8-3893, Jan. 1996.*
Machine translation of JP 7-95369, Oct. 1995.

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