Method for manufacturing optical disc and optical disc
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United States of America Patent
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Nov 16, 2010
Grant Date -
Mar 6, 2008
app pub date -
Oct 25, 2007
filing date -
Mar 30, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing an optical disc includes molding a first disc substrate by a first mold simultaneously with a second disc substrate by a second mold while controlling the temperature of the first and second molds by passing a temperature-controlling medium through temperature controlling flow passages provided in the vicinity of a boundary between the first and second molds.
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