Optical recording medium, recording and reproducing method thereof, and optical recording apparatus
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United States of America Patent
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May 4, 2010
Grant Date -
Dec 25, 2008
app pub date -
Jun 30, 2005
filing date -
Jun 30, 2004
priority date (Note) -
Expired
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Abstract
The present invention relates to an optical recording medium containing a first substrate, a first information layer, an intermediate layer, a second information layer and a second substrate in this order, wherein the first information layer contains a first recording layer disposed on the first substrate and the second information layer contains a reflective layer, a second recording layer containing an organic dye and a protective layer which are disposed on the second substrate in this order; and the second recording layer contains an organic dye which is at least one elected from the group consisting of the specified squarylium metal chelate compounds.
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