Perpendicular magnetic recording medium and magnetic...

Details Perpendicular magnetic recording medium and magnetic... Perpendicular magnetic recording medium and magnetic...

2006-11-28

2006-11-28

Chaney, Carol (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S831200, C428S836300

Reexamination Certificate

active

07141316

ABSTRACT:
Disclosed is a perpendicular magnetic recording medium in which an undercoating layer having crystal grains and a grain boundary material containing a carbide or boride is formed below a perpendicular magnetic recording layer, and another undercoating layer containing one of elements forming the crystal grains is formed below the aforementioned undercoating layer, and which can perform high□density recording by further decreasing the grain size of the perpendicular magnetic recording layer.

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Austrian Search Report dated Nov. 11, 2004 for Appln. No. 200400898-3.

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