Method of erasing information
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United States of America Patent
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-
Oct 17, 1989
Grant Date -
N/A
app pub date -
Oct 6, 1987
filing date -
Feb 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of erasing information recorded on an optical carrier which incls an air-tight space having a recording layer on the inner surface thereof, fills the air-tight space with a gas inert in relation to the material of the recording layer and to the material of the carrier under a pressure selected from a range from 10 to 10.sup.3 kPa, and, after the heating process is discontinued, the recording layer is regenerated.
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