Composite magnetic recording disk

Details Composite magnetic recording disk Composite magnetic recording disk

1980-12-19

1983-03-15

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

Disk

427131, G11B 582

Patent

active

043769632

ABSTRACT:
A composite structure for magnetic recording includes a core member of polymeric material to which is bonded at least one silicon disk having a magnetic recording material on its outer surface. The silicon disk surface provides optimal flatness and smoothness characteristics for a magnetic recording substrate, while the polymeric core member provides strength to the structure.

REFERENCES:
patent: 3130110 (1964-04-01), Schmidt
patent: 3671351 (1972-06-01), Ties
patent: 3681225 (1972-08-01), Genma et al.
patent: 3761333 (1973-09-01), Kleinbeck et al.
Composite Magnetic Disk Substrate" by Hinkel et al., IBM/TDB, vol. 24, No. 9, Feb. 1982.

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