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:
Jan. 10, 2023
Filed:
May. 22, 2020
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Hirokatsu Ito, Sodegaura, JP;
Tasuku Haketa, Sodegaura, JP;
Yu Kudo, Sodegaura, JP;
Yusuke Takahashi, Sodegaura, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 407/12 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C07D 407/12 (2013.01); H01L 51/0059 (2013.01); H01L 51/0073 (2013.01); H01L 51/5056 (2013.01);
Abstract
An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device: wherein, X, Arto Ar, Rto R, *a, and *b are the same as those defined in the specification.