Glass substrate of disk for recording information, a disk for re

Details Glass substrate of disk for recording information, a disk for re Glass substrate of disk for recording information, a disk for re

1997-07-03

2000-03-21

Resan, Stevan A.

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 643, 428 644, 428 653, 428694PR, 428694ST, 428694SG, 360135, 501152, G11B 582

Patent

active

060400293

ABSTRACT:
In accordance with the present invention, a glass substrate of a disk for recording information, containing oxides of rare earth elements and fine particles dispersed therein, and a disk for recording information and a disk apparatus for recording information using the glass substrate of the disk are provided. The glass substrate of the disk for recording information having preferable mechanical characteristics, as well as superior chemical stability, thermal stability, flatness, and transparency is provided, and a disk for recording information and a disk apparatus for recording information using the glass substrate of the disk are provided.

REFERENCES:
patent: 5384293 (1995-01-01), Omori et al.
patent: 5726108 (1998-03-01), Taguchi et al.
patent: 5820960 (1998-10-01), Kwon

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