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:
Aug. 29, 2006
Filed:
Apr. 19, 2002
Applicants:
Tetsuji Fujita, Tokyo, JP;
Sumiko Kitagawa, Tokyo, JP;
Tetsushi Inoue, Tokyo, JP;
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compound for use in organic EL devices comprisingX—Ywherein X is a compound of the formula and Y is a linking group and Rto Rand a to d are hydrogen, an alkyl group, an aryl group which may be substituted, an allyl group which may be substituted, a heterocyclic group which may be substituted, an amino group, or an arylamino group which may be substituted.