The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2003
Filed:
Sep. 20, 2000
Chishio Hosokawa, Chiba-ken, JP;
Hisahiro Higashi, Chiba-ken, JP;
Kenichi Fukuoka, Chiba-ken, JP;
Hidetsugu Ikeda, Chiba-ken, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
An organic electroluminescence device which exhibits excellent heat resistance, a long life and a high efficiency and emits bluish light and an organic light emitting medium advantageously used for the organic electroluminescence device. The organic electroluminescence device comprises a layer of an organic light emitting medium which is disposed between a pair of electrodes and comprises (A) a mono-, di-, tri- or tetrastyryl derivative containing amine and (B) an anthracene derivative having a specific structure. The organic light emitting medium comprises components (A) and (B).