Cyanine dye
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United States of America Patent
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Jan 8, 2013
Grant Date -
Jan 3, 2008
app pub date -
Feb 24, 2005
filing date -
Feb 27, 2004
priority date (Note) -
Expired
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Abstract
An objective of this invention is to extend the range of choosing organic dye compounds as radiation-absorbing agents in a variety of fields by providing a novel organic dye compound which absorbs short-wavelength visible radiation and exhibits a superior in optical resistance, solubility in solvents, and heat characteristics required in a novel field in which the organic dye compound is applied: The objective is attainable by providing a cyanine dye which has a specific structure and exhibits a major adsorption maximum at a wavelength longer than 400 nm in a solution.
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