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:
Jul. 30, 1996
Filed:
Sep. 09, 1994
Applicant:
Inventors:
Takakazu Yamamoto, Midori-ku, Yokohama-shi, Kanagawa, JP;
Takaki Kanbara, Yokohama, JP;
Tetsushi Inoue, Chiba, JP;
Kenji Nakaya, Chiba, JP;
Assignees:
Other;
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4284111 ; 428212 ; 428690 ; 428704 ; 428917 ; 428457 ; 313503 ; 313504 ; 313506 ;
Abstract
An electroluminescent element includes an organic compound layer formed of a thiophene polymer as a light emitting layer or a hole injection transport layer. The element emits light at high luminance and is reliable.