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:
Jul. 13, 2021
Filed:
Nov. 16, 2016
Dyden Corporation, Kurume, JP;
Masataka Watanabe, Kurume, JP;
Masanobu Kotsubo, Kurume, JP;
Tomoko Fukushima, Kurume, JP;
Izumi Maki, Kurume, JP;
Mitsuharu Noto, Kurume, JP;
Dyden Corporation, Fukuoka, JP;
Abstract
An organic electron transport material, which includes a phosphine oxide derivative represented by the following Formula (1): Rrepresents an atomic group which has one or more of either or both of aryl and heteroaryl groups and may have one or more phosphine oxide groups, Rto Reach independently represent an atom or an atomic group selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, a nitro group, a carboxyl group, a formyl group, a carbonyl group, an alkoxycarbonyl group, and a trifluoromethyl group.