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.

Date of Patent:
Dec. 02, 2025

Filed:

Oct. 03, 2019
Applicant:

Idemitsu Kosan Co.,ltd., Tokyo, JP;

Inventors:

Yuki Nakano, Sodegaura, JP;

Taro Yamaki, Sodegaura, JP;

Satomi Tasaki, Sodegaura, JP;

Tomoki Kato, Sodegaura, JP;

Keita Seda, Sodegaura, JP;

Ryota Takahashi, Sodegaura, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07C 15/28 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07C 15/28 (2013.01); H10K 85/40 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 85/658 (2023.02); C07B 2200/05 (2013.01); C07C 2603/24 (2017.05); C09K 2211/1011 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02); H10K 2101/40 (2023.02);
Abstract

An organic electroluminescence device induing a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by formula (11), a compound represented by formula (21), a compound represented by formula (31), a compound represented by formula (41), a compound represented by formula (51), a compound represented by formula (61), a compound represented by formula (71) and a compound represented by formula (81). In the formula (1), at east one of Rto Ris a deuterium atom.


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