Biscarbazole derivative, material for organic electroluminescence device and organic electroluminescence device using the same

  • US 8,652,654 B2
  • Filed: 04/20/2011
  • Issued: 02/18/2014
  • Est. Priority Date: 04/20/2010
  • Status: Active Grant
First Claim
Patent Images

1. A biscarbazole derivative represented by a formula (1) below,

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