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:
Jun. 09, 2026
Filed:
Dec. 22, 2021
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Masatoshi Saito, Sodegaura, JP;
Kei Yoshida, Sodegaura, JP;
Yoshinori Aoyama, Sodegaura, JP;
Masato Mitani, Sodegaura, JP;
Sayaka Mizutani, Sodegaura, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D 409/14 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
C07D 409/14 (2013.01); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 50/166 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1466 (2013.01);
Abstract
A compound represented by the following formula (1): where X, X, Yto Y, L, *a, Rto R, Rto R, Rto R, and Rto Rare as defined in the description. A material for an organic electroluminescent device, the material including the compound of formula (1).