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:
May. 15, 2012
Filed:
Feb. 16, 2005
Tomohiro Oshiyama, Hachioji, JP;
Hiroshi Kita, Hachioji, JP;
Yoshio Inoue, Sendai, JP;
Shuichi Oi, Sendai, JP;
Tomohiro Oshiyama, Hachioji, JP;
Hiroshi Kita, Hachioji, JP;
Yoshio Inoue, Sendai, JP;
Shuichi Oi, Sendai, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
A material for an organic electroluminescence element, characterized in that it comprises a platinum complex formed from a platinum ion and a ligand having at least one aryl group being not capable of free rotation or at least one aromatic heterocyclic group being not capable of free rotation; a display device, characterized in that it comprises said material for an organic electroluminescence element and exhibits high luminous efficiency and long luminous life; and an illumination device, characterized in that it comprises said material for an organic electroluminescence element and exhibits high luminous efficiency and long luminous life.