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:
Jul. 15, 2025
Filed:
Oct. 22, 2014
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Toshinari Ogiwara, Sodegaura, JP;
Satomi Tasaki, Sodegaura, JP;
Masahiro Kawamura, Sodegaura, JP;
Keiji Okinaka, Sodegaura, JP;
Yoshiaki Takahashi, Sodegaura, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 209/86 (2006.01); C07D 235/08 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); C07D 403/14 (2006.01); C07D 405/14 (2006.01); C07D 487/14 (2006.01); C07D 493/04 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 209/86 (2013.01); C07D 235/08 (2013.01); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 487/14 (2013.01); C07D 493/04 (2013.01); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 50/121 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/15 (2023.02); H10K 50/156 (2023.02); H10K 50/16 (2023.02); H10K 85/611 (2023.02); H10K 85/615 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 2101/10 (2023.02);
Abstract
An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material and a second material represented by a formula (21) below. The first material has a singlet energy larger than a singlet energy of the second material.