Magnetic disk

Details Magnetic disk Magnetic disk

1991-06-11

1993-09-28

Anderson, Bruce C.

Dynamic magnetic information storage or retrieval

Record medium

Disk

360136, G11B 582

Patent

active

052490939

ABSTRACT:
A magnetic disk comprises an annular resilient magnetic recording mediumm, an outer ring having an outer affixing surface, and an annular frame disposed radially inwardly of the outer ring. The annular frame comprises an annular thrusting surface protruded axially for thrusting the recording medium to exert tension to it, an inner affixing surface inwardly affixed to the recording medium, and a base axially receded from the thrusting surface.

REFERENCES:
patent: 3805292 (1974-04-01), Hashiguchi et al.
patent: 4573097 (1986-02-01), Pastor et al.
patent: 4598017 (1986-07-01), Boyer et al.
patent: 4615930 (1986-10-01), Matsumoto et al.
patent: 4800458 (1989-01-01), Okita
patent: 4812939 (1989-03-01), Oishi
patent: 5119259 (1992-06-01), Kikuchi

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