Magnetic recording media and magnetic recording system using the

Details Magnetic recording media and magnetic recording system using the Magnetic recording media and magnetic recording system using the

1993-11-22

1998-05-12

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 655, 428141, 428336, 428694T, 428694TS, 428694TM, 428694TR, 428694TP, 428900, 427128, 427129, 427130, 427131, 427132, 2041922, 20419235, G11B 566

Patent

active

057502307

ABSTRACT:
In a magnetic recording medium having a nonmagnetic disk substrate and a magnetic film formed on the surface of the non-magnetic disk substrate, a surface average roughness factor Ra(r) on the surface of the medium being from 0.3 nm to 3 nm, an orientation ratio of coercivity being from 0.1 to 0.7, and an in-plane magnetic anisotropic energy being from 3.times.10.sup.4 J/m.sup.3 to 5.times.10.sup.5 J/m.sup.3. By using such a medium, it is possible to provide a magnetic recording apparatus in which the magnetic head is capable of flying in a low position and high-density recording is achieved.

REFERENCES:
patent: 4438066 (1984-03-01), Aboaf
patent: 4610911 (1986-09-01), Opfer
patent: 4619856 (1986-10-01), Kamada
patent: 4631202 (1986-12-01), Opfer
patent: 4663685 (1987-05-01), Tsong
patent: 4713708 (1987-12-01), Krounbi
patent: 4920013 (1990-04-01), Kobayashi
patent: 5079062 (1992-01-01), Masuda
patent: 5250338 (1993-10-01), Shintani
patent: 5316844 (1994-05-01), Suzuki
patent: 5543221 (1996-08-01), Kitakami
Simpson, IEEE Trans. Magn. vol. MAG-23(5), p. 3405 1987.
Japanese Patent Unexamined Publication No. 58-7806 Jan. 17, 1983.
Japanese Patent Unexamined Publication No. 60-111323, Jun. 17, 1985.
Japanese Patent Unexamined Publication No. 62-40610 Feb. 21, 1987.
Japanese Patent Unexamined Publication No. 63-117309 May 21, 1988.
M. Mihashi, Japanese Patent Unexamined Publication No. 61-29418 Feb. 10, 1986.
N. Nakajima, Japanese Patent Unexamined Publication No. 63-121123 May 25, 1988.
F. Maruta, Japanese Patent Unexamined Publication No. 62-146434 Jun. 30, 1987.
A. Moriguchi, Japanese Patent Unexamined Publication No. 1-162229 Jun. 26, 1983.
Teng. et al "Anisotcopy Induced Siomol Weveyorm Moderation of DC Magneflow Sputtered Thin Film Discks", IEEE Trans. Magn. vol. MAG-22(5), p. 579 (Feb. 1986).
E. M. Simpson, et al., "Effect of Circumtereutial Texture on the Properties of Thin Film Rigiol Recording Disks", IEEE Trans. Magn. vol. MAG-23(5) p. 3405 (1987).
Japanese Patent Unexamined Publication No. 62-262227 Nov. 14, 1987.
Japanese Patent Unexamined Publication No. 51-44917 Apr. 16, 1976.
M. Aoi, Japanese Patent Unexamined Publication No. 63-146219 Jun. 18, 1988.
K. Yamaguchi, Japanese Patent Unexamined Publication No. 63-42027 Feb. 23, 1988.
I. Matsuda, Japanese Patent Unexamined Publication No. 2-31326, Feb. 1, 1990.

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