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. 06, 2026
Filed:
Sep. 09, 2022
Applicant:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Masahiro Kawamura, Tokyo, JP;
Hirokatsu Ito, Tokyo, JP;
Toshinari Ogiwara, Tokyo, JP;
Yumiko Mizuki, Tokyo, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 35/24 (2006.01); C07D 209/86 (2006.01); C09B 57/00 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); H10K 50/11 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
H10K 85/654 (2023.02); C07D 209/86 (2013.01); C09B 57/00 (2013.01); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01);
Abstract
An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material.