Disk-shaped magnetic recording medium

Details Disk-shaped magnetic recording medium Disk-shaped magnetic recording medium

2005-03-08

2005-03-08

Resan, Stevan A. (Department: 1773)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C428S066700, C428S690000

Reexamination Certificate

active

06863948

ABSTRACT:
A disk-shaped magnetic recording medium for use in a small magnetic disk cartridge, comprising a flexible disk-shaped magnetic sheet, and a rigid annular member attached to the outer circumferential edge portion of one side of the magnetic sheet.

REFERENCES:
patent: 3373413 (1968-03-01), Treseder
patent: 4578299 (1986-03-01), Kato et al.
patent: 4581270 (1986-04-01), Kato et al.
patent: 5061537 (1991-10-01), Kobayashi et al.
patent: 5733622 (1998-03-01), Starcke et al.
patent: 6424488 (2002-07-01), Misso et al.

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