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.

Date of Patent:
Aug. 04, 2009

Filed:

Jun. 01, 2004
Applicants:

Kazumi Nii, Minami-ashigara, JP;

Kousuke Watanabe, Minami-ashigara, JP;

Tatsuya Igarashi, Minami-ashigara, JP;

Seiji Ichijima, Minami-ashigara, JP;

Toshihiro Ise, Minami-ashigara, JP;

Inventors:

Kazumi Nii, Minami-ashigara, JP;

Kousuke Watanabe, Minami-ashigara, JP;

Tatsuya Igarashi, Minami-ashigara, JP;

Seiji Ichijima, Minami-ashigara, JP;

Toshihiro Ise, Minami-ashigara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07D 213/02 (2006.01); H01L 51/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.


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