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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.:

US 10431752 B1

PDFFull Text
Date of Patent:
Oct. 01, 2019

Filed:

May. 16, 2018

Organometallic iridium complex, light-emitting element, light-emitting device, and lighting device

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Inventors:

Hideko Inoue, Kanagawa, JP;

Tomoya Yamaguchi, Kanagawa, JP;

Hiromi Seo, Kanagawa, JP;

Tatsuyoshi Takahashi, Kanagawa, JP;

Satoshi Seo, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., , JP;

Attorney:

Husch Blackwell LLP

Primary Examiner:

Alexander R Pagano

Assistant Examiner:

Ebenezer O Sackey

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); C07F 15/0033 (2013.01);
Abstract

An organometallic iridium complex that has high emission efficiency and a long lifetime and emits deep red light (emission wavelength: around 700 nm) is provided. The organometallic iridium complex has a ligand that is represented by General Formula (G0) and has at least a dimethyl phenyl group and a quinoxaline skeleton. In the formula, Rto Rseparately represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a phenyl group having an alkyl group having 1 to 6 carbon atoms as a substituent.

Find Patent Forward Citations

Inoue, Hideko. (2019). Organometallic iridium complex, light-emitting element, light-emitting device, and lighting device (U.S. Patent No. 10431752). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10431752

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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