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:
Dec. 27, 2011
Filed:
May. 19, 2005
Seiichiro Murase, Otsu, JP;
Daisuke Kitazawa, Otsu, JP;
Kazumasa Nagao, Otsu, JP;
Kazunori Sugimoto, Otsu, JP;
Tsuyoshi Tominaga, Otsu, JP;
Seiichiro Murase, Otsu, JP;
Daisuke Kitazawa, Otsu, JP;
Kazumasa Nagao, Otsu, JP;
Kazunori Sugimoto, Otsu, JP;
Tsuyoshi Tominaga, Otsu, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
The present invention is a light emitting device material characterized by containing an anthracene compound represented by the following general formula (1), and the present invention allows a light emitting device having high luminous efficiency and excellent durability. (Rto Rare a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group or the like. At least one of the Rto Ris a substituent represented by the following general formula (2))