Perpendicular recording medium and magnetic recording apparatus

Details Perpendicular recording medium and magnetic recording apparatus Perpendicular recording medium and magnetic recording apparatus

1995-06-06

1998-08-11

Kiliman, Leszek

Stock material or miscellaneous articles

All metal or with adjacent metals

Having composition, density, or hardness gradient

428611, 428621, 428632, 428692, 428694R, 428694T, 428694TS, 428698, 428702, 428704, 428900, 360113, 2041922, G11B 566

Patent

active

057925640

ABSTRACT:
A longitudinal recording medium and a magnetic recording apparatus containing the same, comprising a substrate and a longitudinal magnetization film formed on the substrate containing grains of a Co-based alloy, and exhibiting an oxygen concentration distribution having two peaks as follows: a peak of higher oxygen concentration pertaining to grain boundaries of the longitudinal magnetization film, and a peak of lower oxygen concentration pertaining to grain interiors of the longitudinal magnetization film.

REFERENCES:
patent: 4542062 (1985-09-01), Takada
patent: 4717584 (1988-01-01), Aoki
patent: 4745505 (1988-05-01), Peeters
patent: 4749628 (1988-06-01), Ahlert
patent: 4883711 (1989-11-01), Shiroishi
patent: 5068144 (1991-11-01), Kitakami
patent: 5068158 (1991-11-01), Futamoto
patent: 5143794 (1992-09-01), Suzuki
patent: 5236791 (1993-08-01), Yahisa

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