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:
Mar. 22, 2022
Filed:
Apr. 15, 2015
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Takuma Yasuda, Fukuoka, JP;
Katsuyuki Shizu, Fukuoka, JP;
Takehiro Takahashi, Tokyo, JP;
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Kyulux, Inc., Fukuoka, JP;
Abstract
A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of general formula (1) having a tetraazatriphenylene ring structure is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.