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:
Mar. 15, 2016
Filed:
Sep. 12, 2011
Noboru Kitamura, Sapporo, JP;
Eri Sakuda, Sapporo, JP;
Akitaka Ito, Sapporo, JP;
Takeo Hirokawa, Sapporo, JP;
Chizu Sekine, Chuo-ku, JP;
Yusuke Ishii, Tsukuba, JP;
Noboru Kitamura, Sapporo, JP;
Eri Sakuda, Sapporo, JP;
Akitaka Ito, Sapporo, JP;
Takeo Hirokawa, Sapporo, JP;
Chizu Sekine, Chuo-ku, JP;
Yusuke Ishii, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, Hokkaido, JP;
Abstract
Disclosed is an device having high light-emitting efficiency. A metal complex represented by the following formula (1). In the formula (1), n represents an integer of 1 to 3. Land Leach independently represent the moiety of a group bonded to an iridium atom, except for coordinating atoms. When n is 3, a metal complex represented by the following formula (1-3):