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:
Feb. 24, 2009
Filed:
Jan. 16, 2004
Masaaki Ikeda, Kita-ku, JP;
Takaaki Kurata, Kita-ku, JP;
Teppei Tsuchida, Kita-ku, JP;
Chihaya Adachi, Chitose, JP;
Masaaki Ikeda, Kita-ku, JP;
Takaaki Kurata, Kita-ku, JP;
Teppei Tsuchida, Kita-ku, JP;
Chihaya Adachi, Chitose, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
The device according to the invention is a device having organic thin films containing a light-emitting layer between an anode and a cathode that emits light by application of electric energy, characterized in that the light-emitting device contains at least a compound having the basic skeleton represented by the following General Formula (1) or (2). Use of the condensed polycyclic compound according to the invention allows production of high-brightness, high-efficiency light-emitting device superior in color purity.