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. 20, 2018
Filed:
May. 20, 2015
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Hideko Inoue, Kanagawa, JP;
Tomoka Hara, Kanagawa, JP;
Yasushi Kitano, Kanagawa, JP;
Hiromi Seo, Kanagawa, JP;
Tatsuyoshi Takahashi, Kanagawa, JP;
Satoshi Seo, Kanagawa, JP;
Abstract
Provided is a novel heterocyclic compound, a novel heterocyclic compound that can be used in a light-emitting element, or a highly reliable light-emitting device, electronic device, and lighting device in each of which the light-emitting element using the novel heterocyclic compound is used. One embodiment of the present invention is a heterocyclic compound represented by General Formula (G1). In General Formula (G1), each of Aand Aindependently represents nitrogen or carbon bonded to hydrogen, and at least one of Aand Arepresents nitrogen; Ar represents a substituted or unsubstituted arylene group having 6 to 18 carbon atoms; B represents a substituted or unsubstituted fluorenyl group; and Rrepresents hydrogen, an alkyl group having 1 to 6 carbon atoms, or an aryl group having 6 to 13 carbon atoms.