Compositions – Organic luminescent material containing compositions
Reexamination Certificate
2007-01-23
2007-01-23
Lavilla, Michael E. (Department: 1775)
Compositions
Organic luminescent material containing compositions
C313S504000, C313S506000, C257S040000, C564S427000, C585S025000
Reexamination Certificate
active
10930874
ABSTRACT:
An electroluminescent element in which at least one layer containing at least one of novel hydrocarbon compounds with an anthracene ring and a fluorene ring directly bound is held between a pair of electrodes. The compounds can advantageously be used in a luminescent element and provide an organic electroluminescent element having an excellent luminescent efficiency and a long luminescent life.
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Ishida Tsutomu
Nakatsuka Masakatsu
Shimamura Takehiko
Totani Yoshiyuki
Buchanan & Ingersoll & Rooney PC
Lavilla Michael E.
Mitsui Chemicals Inc.
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