Magnetic disk substrate with a core of synthetic material

Details Magnetic disk substrate with a core of synthetic material Magnetic disk substrate with a core of synthetic material

1982-05-24

1983-11-15

Morgenstern, Norman

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

428612, 428674, 428928, 427129, 427132, G11B 514

Patent

active

044156340

ABSTRACT:
A substrate for a magnetic recording disk employs an annular core of synthetic material having thin metal foils bonded to opposite faces, the metal foils serving to receive a magnetic recording material to form a magnetic recording structure. The inner surfaces of foils which are bonded to the core faces have applied thereto a thin, soft, deformable layer such as copper to prevent irregularities in the core faces from affecting the outer surfaces of the metal foils.

REFERENCES:
patent: 3761333 (1973-09-01), Kleinbeck et al.
patent: 4101402 (1978-07-01), Vossen, Jr. et al.

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