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. 19, 2014
Filed:
Nov. 11, 2009
Applicants:
Isao Takasu, Komae, JP;
Ryoko Iida, Sunto-gun, JP;
Yukitami Mizuno, Tokyo, JP;
Shintaro Enomoto, Yokohama, JP;
Shuichi Uchikoga, Tokyo, JP;
Inventors:
Isao Takasu, Komae, JP;
Ryoko Iida, Sunto-gun, JP;
Yukitami Mizuno, Tokyo, JP;
Shintaro Enomoto, Yokohama, JP;
Shuichi Uchikoga, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-emitting compound includes two or more carbazole skeletons each having two or more fluorine atoms at 2-, 4-, 5- and 7-positions, the carbazole skeleton represented by the formula (1):