Aromatic amine derivative, and organic electroluminescent element comprising the same

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United States of America Patent

PATENT NO 8431250
SERIAL NO

13138750

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Abstract

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An aromatic amine derivative represented by the following formula (1)

    wherein at least one of Ar1 to Ar4 is a heterocyclic group represented by the following formula (2) wherein X1 is an oxygen atom or a sulfur atom.

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Patent Owner(s)

Patent OwnerAddress
IDEMITSU KOSAN CO LTD2-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 100-8321

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funahashi, Masakazu Sodegaura, JP 158 3097
Kawamura, Masahiro Sodegaura, JP 216 8578
Mizuki, Yumiko Sodegaura, JP 104 2388

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