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:
Feb. 15, 2022
Filed:
Dec. 21, 2019
Applicants:
Kwansei Gakuin Educational Foundation, Nishinomiya, JP;
SK Materials Jnc Co., Ltd., Gyeonggi-do, KR;
Inventors:
Takuji Hatakeyama, Hyogo, JP;
Hiroyuki Imai, Chiba, JP;
Yuko Yamaga, Tokyo, JP;
Daisuke Inoue, Chiba, JP;
Akio Tajima, Tokyo, JP;
Assignees:
Kwansei Gakuin Educational Foundation, Hyogo, JP;
SK Materials JNC Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07F 5/02 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
C07F 5/02 (2013.01); H01L 51/008 (2013.01); H01L 51/5012 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01);
Abstract
A polycyclic aromatic compound in which a plurality of aromatic rings are connected by a boron atom and an oxygen atom, a sulfur atom or a selenium atom and substituted by a specific aryl such as anthracene, is useful as a material for an organic device. By the polycyclic aromatic compound, an organic EL device having at least one of efficiency and device life can be provided.