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:
Oct. 11, 2011
Filed:
Dec. 12, 2007
Hiroki Ohrui, Kawasaki, JP;
Akihito Saitoh, Yokohama, JP;
Chika Negishi, Yokosuka, JP;
Hironobu Iwawaki, Yokohama, JP;
Masanori Muratsubaki, Hachioji, JP;
Hiroyuki Tomono, Tokyo, JP;
Tetsuya Kosuge, Kawasaki, JP;
Akihiro Senoo, Kawasaki, JP;
Hiroki Ohrui, Kawasaki, JP;
Akihito Saitoh, Yokohama, JP;
Chika Negishi, Yokosuka, JP;
Hironobu Iwawaki, Yokohama, JP;
Masanori Muratsubaki, Hachioji, JP;
Hiroyuki Tomono, Tokyo, JP;
Tetsuya Kosuge, Kawasaki, JP;
Akihiro Senoo, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There are provided a novel benzofluoranthene compound and an organic light-emitting device which uses the benzofluoranthene compound, gives a blue emission hue with extremely good purity, and has an optical output with a high efficiency, a high luminance, and a long life. Specifically, there are provided a benzofluoranthene compound represented by the general formula shown below and an organic light-emitting device including a pair of electrodes including an anode and a cathode one of which is a transparent or translucent electrode material, and an organic compound layer disposed between the pair of electrodes and including a material for an organic light-emitting device containing the benzofluoranthene compound. In the general formula (1), one of X, X, X, X, X, and Xrepresents a substituted or unsubstituted fused heterocyclic group having four or less rings, and the others of X, X, X, X, X, and Xeach represent a hydrogen atom.