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:
Aug. 11, 2026

Filed:

Aug. 12, 2021
Applicants:

Kwansei Gakuin Educational Foundation, Nishinomiya, JP;

SK Materials Jnc Co., Ltd., Hwaseong-si, KR;

Inventors:

Takuji Hatakeyama, Kyoto, JP;

Yuki Yamasaki, Fukuoka, JP;

Kouhei Isayama, Chiba, JP;

Ryosuke Kawasumi, Chiba, JP;

Yasuhiro Kondo, Chiba, JP;

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/11 (2023.01);
U.S. Cl.
CPC ...
H10K 85/658 (2023.02); H10K 50/11 (2023.02); H10K 85/636 (2023.02);
Abstract

A polycyclic aromatic compound consisting of a substructure represented by Formula (1A) and at least two substructures represented by Formula (1B): (A to C ring is an aryl ring which may be substituted, Ris an aryl which may be substituted and bonded to A ring via a dashed-line which is —X—, the substructure represented by Formula (1B) is bonded to a ring constituting atom of the aryl or heteroaryl ring in one selected from the group consisting of A ring, B ring and R, and C ring and Rin another substructure represented by Formula (1B) at position *, C ring is bonded to the above-selected ring, Ris an aryl which may be substituted and bonded to the above-selected ring or X, Y is B, X is >N—R (R is an aryl which may be substituted)) is useful as a material for an organic device.


Find Patent Forward Citations

Hatakeyama, Takuji. (2026). Polycyclic aromatic compound (U.S. Patent No. 12707891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12707891

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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