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:
Oct. 15, 2024
Filed:
Feb. 23, 2018
Applicants:
Kyushu University, National University Corporation, Fukuoka, JP;
Kyulux, Inc., Fukuoka, JP;
Inventors:
Hajime Nakanotani, Fukuoka, JP;
Hiroki Noda, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Naoto Notsuka, Fukuoka, JP;
Yoshitake Suzuki, Fukuoka, JP;
Assignee:
KYULUX, INC., Fukuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 209/86 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 209/86 (2013.01); C09K 11/06 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02);
Abstract
Using a compound represented by a general formula (A)m-L-(D)n, a light-emitting device having a high emission efficiency can be provided. L is an (m+n)-valent aromatic linking group; A is a group having a positive Hammett's σvalue; D is a group having a negative Hammett's σvalue; m is an integer of 1 or more; n is an integer of 2 or more. Two of plural D's differ in point of the substituent condition at specific aromatic rings.