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:
Jul. 04, 2023
Filed:
Jun. 13, 2017
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Yuichi Nishimae, Basel, CH;
Michelle Groarke, Binningen, CH;
Heinz Wolleb, Fehren, CH;
Annemarie Wolleb, Fehren, CH;
Yuki Nakano, Kisarazu, JP;
Hideaki Nagashima, Ichihara, JP;
Tasuku Haketa, Chiba, JP;
Masahiro Kawamura, Basel, CH;
Takushi Shiomi, Chiba, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Abstract
Specifically substituted benzofuro- and benzothienoquinolines and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted benzofuro- and benzothienoquinolines may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.