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:
Jun. 02, 2009
Filed:
Jul. 26, 2004
Ryoji Nomura, Kanagawa, JP;
Atsushi Tokuda, Kanagawa, JP;
Hiroko Abe, Tokyo, JP;
Satoshi Seo, Kanagawa, JP;
Ryoji Nomura, Kanagawa, JP;
Atsushi Tokuda, Kanagawa, JP;
Hiroko Abe, Tokyo, JP;
Satoshi Seo, Kanagawa, JP;
Abstract
A light-emitting organic compound that is superior in electrochemical stability, chemical stability, and thermal stability is provided. The compound also, shows blue luminescence with favorable color purity, and is represented by the following general formula (). In the formula, Xrepresents a silyl group in which one or more aryl groups having 5 to 10 carbon atoms are bound to silicon or an alkyl group having 1 to 4 carbon atoms. Arrepresents an unsubstituted or substituted aryl group having 5 to 15 carbon atoms. Arrepresents an aryl group having 5 to 20 carbon atoms, and may have a substituent at a site different from a binding site to ArX—Ar—Ar  (1)