Glass substrate of disk for recording information, a disk for recording information, and a disk device for recording information
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 24, 2000
Issued Date -
N/A
app pub date -
Jan 20, 2000
filing date -
Jul 18, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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