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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.:

US 12477945 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Apr. 08, 2020

Organic electroluminescence device and electronic apparatus equipped with the same

Applicant:

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

Inventors:

Hiroaki Itoi, Sodegaura, JP;

Yuki Nakano, Sodegaura, JP;

Satomi Tasaki, Sodegaura, JP;

Taro Yamaki, Sodegaura, JP;

Tetsuya Masuda, Sodegaura, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Alexander C Kollias

Int. Cl.
CPC ...
H01L 51/00 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/85 (2023.01);
U.S. Cl.
CPC ...
H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/6574 (2023.02); H10K 85/658 (2023.02); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/85 (2023.02);
Abstract

An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains one or both of the compound represented by the following formula (1A) and the compound represented by the following formula (1B) and a compound represented by any one of the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).

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Itoi, Hiroaki. (2025). Organic electroluminescence device and electronic apparatus equipped with the same (U.S. Patent No. 12477945). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12477945

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