Foley & Lardner LLP
Pyrene derivative, organic light-emitting medium, and organic electroluminescent element containing pyrene derivative or organic light- emitting medium
An organic light-emitting medium including a pyrene derivative represented by the following formula (1) and a phenyl-substituted anthracene derivative represented by the following formula (2): wherein Ar1 to Ar4 are independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 20 ring atoms. 
IDEMITSU KOSAN CO., LTD.
C C C C C H C C C C C C C C H C C C C C C C C C C C C C C C C C
C07D C07D C09K C07C C07C H01L C07C C09K C09K C07C C07C C07C C07C C07C H01L C07D C07C C07C C07C C07C C07C C07D C07F C09K C07C C09K C07C C07D C07C C09K C07C C07C
inventional inventional inventional additional additional inventional inventional additional additional additional inventional inventional inventional inventional additional inventional additional additional additional additional additional inventional inventional additional inventional additional inventional inventional inventional additional additional inventional
Hirokatsu Takeshi Yuichiro Hiroyuki Masahiro Yumiko
Ito Ikeda Kawamura Saito Kawamura Mizuki