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:
Oct. 30, 2012
Filed:
Sep. 21, 2011
Sachiko Kawakami, Kanagawa, JP;
Nobuharu Ohsawa, Kanagawa, JP;
Harue Nakashima, Kanagawa, JP;
Kumi Kojima, Tokyo, JP;
Satoshi Seo, Kanagawa, JP;
Masakazu Egawa, Kanagawa, JP;
Ryoji Nomura, Kanagawa, JP;
Sachiko Kawakami, Kanagawa, JP;
Nobuharu Ohsawa, Kanagawa, JP;
Harue Nakashima, Kanagawa, JP;
Kumi Kojima, Tokyo, JP;
Satoshi Seo, Kanagawa, JP;
Masakazu Egawa, Kanagawa, JP;
Ryoji Nomura, Kanagawa, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;
Abstract
It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material. The structure for solving the above problems in accordance with the present invention is an anthracene derivative simultaneously having a diphenylanthracene structure and a carbazole skeleton in a molecule as represented by structural formula (I):