US Patent 7371449 Optical recording medium
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Patent Inventor Names
Shigeyuki Furomoto0
Yoshihiro Noda0
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Patent abstract
In an optical recording medium having two recording layers of a first recording layer and a second recording layer, the second recording layer contains metallized azo dyes represented by the following general formula (I) or (II), and recording characteristics of the second recording layer are improved by having optical density of 1.3 times as large as, or 1.3 times greater than, that of a dye contained in the first recording layer.
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US Patent 07371449 Optical recording medium US Patent 7371449 Optical recording medium
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Patent Number
07371449
Patent Number
7371449
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Official Website
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US Patent 07371449 Optical recording medium
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Is a
Patent jurisdiction
Patent number
07371449
Date of patent
May 13, 2008
Patent application number
11393917
Date Filed
March 31, 2006
Patent primary examiner
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