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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 12473315 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Mar. 14, 2024

Polycyclic aromatic compound

Applicants:

Kwansei Gakuin Educational Foundation, Hyogo, JP;

SK Materials Jnc Co., Ltd., Gyeonggi-do, KR;

Inventors:

Takuji Hatakeyama, Hyogo, JP;

Soichiro Nakatsuka, Hyogo, JP;

Kiichi Nakajima, Hyogo, JP;

Hiroki Hirai, Hyogo, JP;

Yohei Ono, Chiba, JP;

Kazushi Shiren, Chiba, JP;

Jingping Ni, Chiba, JP;

Takeshi Matsushita, Chiba, JP;

Toshiaki Ikuta, Chiba, JP;

Assignees:

Kwansei Gakuin Educational Foundation, Hyogo, JP;

SK Materials JNC Co., Ltd., Gyeonggi-do, KR;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Dawn L Garrett

Int. Cl.
CPC ...
C07F 9/6568 (2006.01); C07F 5/02 (2006.01); C07F 9/6571 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
C07F 9/65685 (2013.01); C07F 5/02 (2013.01); C07F 9/657163 (2013.01); H10K 85/322 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/631 (2023.02); H10K 85/656 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/658 (2023.02); C09K 11/06 (2013.01); C09K 2211/1096 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 2101/10 (2023.02); Y02E 10/549 (2013.01);
Abstract

A novel polycyclic aromatic compound in which plural aromatic rings are linked via boron atoms, oxygen atoms and the like is provided, and therefore, the range of selection of the material for organic electroluminescent elements can be widened. Also, an excellent organic electroluminescent element is provided by using the novel polycyclic aromatic compound as a material for an organic electroluminescent element.

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