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. 16, 2021
Filed:
Dec. 02, 2016
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Assignee:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/04 (2006.01); C07D 487/14 (2006.01); C07D 403/14 (2006.01); C07D 487/22 (2006.01); C07D 235/26 (2006.01); C07D 405/14 (2006.01); C07D 403/10 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); C07D 235/26 (2013.01); C07D 403/10 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 487/14 (2013.01); C07D 487/22 (2013.01); C09K 11/06 (2013.01); H05B 33/14 (2013.01); C09K 2211/183 (2013.01);
Abstract
Compounds of formula (I) and their use in electronic devices, especially electroluminescent devices: (I) wherein at least two of the substituents Rand R, Rand R, Rand R, Rand R, Rand R, or Rand Rform together one of the following ring systems (IIa), (IIb) (IIc). When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the compounds of formula (I) may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.