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. 25, 2016
Filed:
Nov. 28, 2011
Osamu Goto, Tsukuba, JP;
Fumiko Kako, Tsukuba, JP;
Masayuki Soga, Tokyo, JP;
Kazuei Ohuchi, Tsukuba, JP;
Osamu Goto, Tsukuba, JP;
Fumiko Kako, Tsukuba, JP;
Masayuki Soga, Tokyo, JP;
Kazuei Ohuchi, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A polymer compound is provided for achieving satisfactory brightness even at a low driving voltage when applied to a light-emitting device. A preferred embodiment includes multiple first groups and a block (A) having a structure in which the first groups are linked by a second group represented by formula (0-0), and includes at least one of a group represented by formula (0-1) or a group represented by formula (0-2) as the first group; wherein Arrepresents an optionally substituted arylene group or divalent aromatic heterocyclic group having a structure different from the first group; n represents an average chain length of Arand equals 1.0 to 8.0; and Xto Xand Xto Xeach represent a carbon atom or a nitrogen atom, where two or three of Xto Xare a nitrogen atom and three of Xto Xare a nitrogen atom.