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:
Nov. 22, 2022
Filed:
Aug. 07, 2019
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Yuichi Nishimae, Basel, CH;
Natalia Chebotareva, Hagenthal le Bas, FR;
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Abstract
Specifically substituted hetero- or carbon-bridged phenylquinazolines of the general formulae (Ia) and (Ib) and a process for their preparation, an electronic device comprising at least one of these compounds, an emitting layer, preferably present in an electronic device, comprising at least one compound of general formulae (Ia) and (Ib) and the use of compounds according to general formulae (Ia) and (Ib) in an electronic device as a host material, a charge transporting material, charge and/or exciton blocking material, preferably as a host material or an electron transporting material.