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:
May. 23, 2006
Filed:
Mar. 14, 2003
Applicants:
Akira Ebisawa, Tokyo, JP;
Masahiro Shinkai, Tokyo, JP;
Inventors:
Akira Ebisawa, Tokyo, JP;
Masahiro Shinkai, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vinyl polymer having a 9,10-substituted anthracene structure which is a stable structure with a high solid quantum efficiency is obtained from a vinyl monomer having a group derived from the structure of formula (1) wherein nis an integer of 1 to 3, each of X, X, Xand Xis a substituent group, kand kare integers of 0 to 5, and kand kare integers of 0 to 4. An organic EL device comprising an organic layer containing the vinyl polymer becomes a molecule dispersed type organic EL device featuring a high efficiency and a long life.