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:
Feb. 05, 2013
Filed:
Jul. 25, 2011
Chishio Hosokawa, Sodegaura, JP;
Yoriyuki Takashima, Sodegaura, JP;
Masakazu Funahashi, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Yoriyuki Takashima, Sodegaura, JP;
Masakazu Funahashi, Sodegaura, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
To attain an organic electroluminescence device having a long lifetime and high luminous efficiency, and is capable of emitting blue light having a high color purity, and an aromatic amine derivative for realizing the device, the present invention provides an aromatic amine derivative having a specific structure, and an organic electroluminescence device including an organic thin film layer composed of one or more layers including at least a light emitting layer and interposed between a cathode and an anode, in which at least one layer of the organic thin film layer contains the aromatic amine derivative alone or as a component of a mixture.