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:
Feb. 05, 2008
Filed:
Apr. 20, 2004
Applicants:
Eisaku Katoh, Hachioji, JP;
Hiroshi Kita, Hachioji, JP;
Tomohiro Oshiyama, Hachioji, JP;
Mitsuhiro Fukuda, Chofu, JP;
Yoshiyuki Suzuri, Musashino, JP;
Noriko Ueda, Hino, JP;
Inventors:
Eisaku Katoh, Hachioji, JP;
Hiroshi Kita, Hachioji, JP;
Tomohiro Oshiyama, Hachioji, JP;
Mitsuhiro Fukuda, Chofu, JP;
Yoshiyuki Suzuri, Musashino, JP;
Noriko Ueda, Hino, JP;
Assignee:
Konica Minolta Holdings, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H05B 33/14 (2006.01); C09K 11/06 (2006.01); C07D 471/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides: an organic EL element exhibiting high luminance, a high external quantum efficiency and a long high temperature driving life at 50° C.; an illuminator and a display device employing the organic EL element; and a material preferably used for the organic EL element.