Back to results
US 8,222,637 B2Granted
Benzochrysene derivative and organic electroluminescence device using the same
AssigneeIdemitsu Kosan Co., Ltd.
InventorMasahiro Kawamura
Life of this patent
Estimating the term…
Abstract
A fused aromatic ring derivative shown by the following formula (1): wherein Ra and Rb are independently a hydrogen atom or a substituent, m and n are independently an integer of 1 to 13, and when m and n are two or more, Ras and Rbs may be independently the same or different, and L1 is a single bond or a substituted or unsubstituted divalent linking group, provided that the fused aromatic ring derivative shown by the formula (1) does not have an anthracene ring.
Claims12
A fused aromatic ring derivative shown by the following formula (1):
- wherein Ra and Rb are independently a hydrogen atom or a substituent, m and n are independently an integer of 1 to 13, and when m and n are two or more, Ras and Rbs may be independently the same or different, and L1 is a single bond or a substituted or unsubstituted divalent linking group, provided that the fused aromatic ring derivative shown by the formula (1) does not have an anthracene ring.
Dependencies are inferred from the claim text.