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. 31, 2015
Filed:
Dec. 02, 2010
Ayataka Endo, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Kazuaki Yoshimura, Kitakyushu, JP;
Atsushi Kawada, Kitakyushu, JP;
Hiroshi Miyazaki, Kitakyushu, JP;
Takahiro Kai, Kitakyushu, JP;
Ayataka Endo, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Kazuaki Yoshimura, Kitakyushu, JP;
Atsushi Kawada, Kitakyushu, JP;
Hiroshi Miyazaki, Kitakyushu, JP;
Takahiro Kai, Kitakyushu, JP;
Nippon Steel & Sumikin Chemical Co., Ltd., Tokyo, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Abstract
Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.