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:
Sep. 01, 2020
Filed:
Jan. 16, 2019
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Takashi Kashiwamura, Ichihara, JP;
Kiyoshi Ikeda, Sodegaura, JP;
Hironori Kawakami, Katsushika-ku, JP;
Masahiro Kawamura, Chiba, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Abstract
A compound having a structure wherein at least 8-position or 9-position of fluoranthene is replaced by a nitrogen atom, a material for organic electroluminescence devices including the compound, and an organic electroluminescence device and an electronic equipment each including the material are provided. The compound is represented by formula (1): wherein A represents CRor N; Rto Reach independently represent a hydrogen atom or a substituent; at least one selected from Rto Rrepresents a substituent other than hydrogen atom; and groups selected from Rto Rwhich are bonded to adjacent carbon atoms may be bonded to each other to form a saturated or unsaturated ring structure.