Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1987-05-08

1989-02-07

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

252 6256, 427128, 428323, 428329, 428403, 428694, 428900, G11B 5706

Patent

active

048031321

ABSTRACT:
A magnetic recording medium with high output power and improved durability which comprises a nonmagnetic substrate and a magnetic layer formed thereon containing magnetic powder and a binder, wherein the magnetic powder comprises a nuclear crystal consisting of magnetic oxide powder and a magnetic metallic layer formed thereon containing cobalt, and the magnetic layer has coercive force of not more than 1,000 Oe and saturation magnetic fluex density of not less than 1,800 gauss.

REFERENCES:
patent: 4444835 (1984-04-01), Togawa et al.
patent: 4539261 (1985-09-01), Nakata et al.
patent: 4555431 (1985-11-01), Miyatsuka
patent: 4657816 (1987-04-01), Siddig
patent: 4663209 (1987-05-01), Aonuna et al.
patent: 4686142 (1987-08-01), Kiemle et al.

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