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:
Dec. 07, 1999
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Hiroshi Tada, Tokyo, JP;
Hiroyuki Endoh, Tokyo, JP;
Akira Hirano, Tokyo, JP;
Koji Utsugi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
428690 ; 428691 ; 428917 ; 313504 ;
Abstract
An organic thin film electroluminescent device has at least an organic thin film provided between an anode and a cathode,