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:
Jan. 17, 2006
Filed:
Jun. 10, 2003
Applicants:
Youichi Itagaki, Atsugi, JP;
Norio Hasegawa, Tochigi, JP;
Inventors:
Youichi Itagaki, Atsugi, JP;
Norio Hasegawa, Tochigi, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/14 (2006.01); C09K 11/06 (2006.01); C07D 409/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chemical compound capable of emitting visible light and having electrical conductivity comprises a main chain that consists of at least one substituted or non-substituted 2,5-thiophenediyl group and at least one substituted or non-substituted 9-carbazolyl group that bonds to at least one of two terminals of the main chain. The chemical compound is used in a luminescent material, an EL device that includes a luminous layer, and a display apparatus that includes a plurality of EL devices.