Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1990-06-04

1996-01-02

Kiliman, L.

Stock material or miscellaneous articles

Circular sheet or circular blank

428 653, 428 656, 428336, 428650, 428652, 428678, 428694T, 428694TR, 428694ST, 428694SG, 428702, 428704, 428800, 427128, 427129, B32B 302, G11B 566

Patent

active

054806941

ABSTRACT:
A magnetic recording medium comprising alumite made by anodic oxidation of aluminum or an aluminum alloy and comprising fine pores in which a ferromagnetic material is filled, wherein an in-plane remanence is at least 2.5 times greater than a perpendicular remanence and a magnetic recording medium of the above alumite, wherein the magnetic material is at least one material selected from the group consisting of Fe or Co, alloy mainly composed of Fe or Co, an Co or Fe containing a P element, and an alloy mainly composed of Co or Fe and containing the P element.

REFERENCES:
patent: 4738885 (1988-04-01), Matsumoto
patent: 4774130 (1988-09-01), Endo et al.
Journal of the Electrochemical Society: Electrochem. Sc. and Techn., vol. 122, No. 1, Jan. 1975, USA, pp. 32-36; S. Kawai et al.
IEEE Transactions on Magnetics, vol. 23, No. 5, Sep. 1987, NY, USA, pp. 2245-2247, K. I. Arai, et al.
JP-A-62 125526, Jun. 6, 1987, Nippon Gokki Seizo K.K.-Abstract.
Patent Abstracts of Japan, vol. 11, No. 173 (P-582) 4 Jun. 1987, and JP-A-62 003423 (Pilot Precision Co Ltd) 9 Mar. 1987.
Patent Abstracts of Japan, vol. 11, No. 256 (P-607) 20 Aug. 1987, and JP-A-62 062419 (Pilot Precision Co Ltd) 19 Mar. 1987.
Patent Abstracts of Japan, vol. 9, No. 97 (P-352) 26 Paril. 1985, and JP-A-59 221826 (Toshirou Takahashi) 13 Dec. 1984.

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