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:
Apr. 29, 2025
Filed:
Apr. 21, 2021
Applicant:
Idemitsu Kosan Co.,ltd., Tokyo, JP;
Inventors:
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2005.12); C07F 5/02 (2005.12); H10K 85/60 (2022.12); H10K 50/11 (2022.12);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.01); C07F 5/027 (2012.12); H10K 50/11 (2023.01);
Abstract
A compound is represented by a formula (1). In the formula (1), at least one combination of adjacent two or more of Rto Rare mutually bonded to form a ring represented by a formula (2), in which Rto Rand Rto Rare each independently a hydrogen atom, a substituent or the like,