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:
Sep. 08, 2026
Filed:
Aug. 19, 2020
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Tomokatsu Kushida, Chiba, JP;
Kei Yoshida, Chiba, JP;
Masatoshi Saito, Ichihara, JP;
Yoshinao Shirasaki, Chiba, JP;
Masato Nakamura, Sumida-ku, JP;
Michelle Groarke, Binningen, CH;
Heinz Wolleb, Fehren, CH;
Natalia Chebotareva, Hagenthal le Bas, FR;
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Abstract
To provide a compound that further improves the capability of an organic EL device, an organic EL device having a further improved device capability, and an electronic device including the organic EL device. A compound represented by the following formula (1) (wherein *p, *q, *r, *s, *b, *a, R, R, Rto R, L, and Rto Rare defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.