US Patent 7897421 Organic electroluminescent element, display and illuminator
Patent 7897421 was granted and assigned to Konica Minolta Holdings on March, 2011 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 15, 2008
Date of Patent
March 1, 2011
Patent Application Number
12335321
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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