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. 10, 2020
Filed:
Dec. 15, 2015
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Yuichi Nishimae, Basel, CH;
Julia Kohlstedt, Loerrach, DE;
Thomas Schaefer, Liestal, CH;
Hideaki Nagashima, Basel, CH;
Assignee:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 487/04 (2006.01); H01L 51/00 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); C09K 11/06 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); C09K 2211/185 (2013.01); H01L 51/0085 (2013.01); H01L 51/5016 (2013.01); H01L 51/5096 (2013.01);
Abstract
The present invention relates to compounds of formula(I), a process for their production and their use in electronic devices, especially electroluminescent devices. When used as charge transport material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency and reduced driving voltage of electroluminescent devices.