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:
Jan. 07, 2020
Filed:
Sep. 09, 2015
Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;
Takakazu Saito, Tsukuba, JP;
Yusuke Ishii, Tsukuba, JP;
Kazuei Ohuchi, Tsukuba, JP;
Nobuhiko Akino, Tsukuba, JP;
Rui Ishikawa, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
Provided is a metal complex which is excellent in quantum yield and full width at half maximum of a light emission spectrum. The metal complex is represented by the following formula (1): wherein M represents an iridium atom or the like, nrepresents 1 to 3, nrepresents 0 to 2, Xto Xrepresent a carbon atom or the like, Rto Rrepresent a hydrogen atom or the like, one of Xand Xis a single bond, and the other is a group represented by —CRR—CRR—, Rto Rrepresent an alkyl group or the like, ring A represents a heteroaromatic ring, and A-G-Arepresents an anionic bidentate ligand.