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:
Jun. 23, 2009
Filed:
Sep. 09, 2003
Maki Okajima, Tachikawa, JP;
Tatsundo Kawai, Hadano, JP;
Takao Takiguchi, Chofu, JP;
Koichi Suzuki, Yokohama, JP;
Akihiro Senoo, Kawasaki, JP;
Toshinori Hasegawa, Yokohama, JP;
Keiji Okinaka, Kawasaki, JP;
Maki Okajima, Tachikawa, JP;
Tatsundo Kawai, Hadano, JP;
Takao Takiguchi, Chofu, JP;
Koichi Suzuki, Yokohama, JP;
Akihiro Senoo, Kawasaki, JP;
Toshinori Hasegawa, Yokohama, JP;
Keiji Okinaka, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A novel phenanthroline compound is provided which is represented by the general formula [I]: (wherein R, R, R, R, Rand Rare the same or different and each is selected from a hydrogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aralkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted heterocyclic group, and a halogen atom; and Arand Arare the same or different and each is selected from an unsubstituted or substituted fluorenyl group, an unsubstituted or substituted fluoranthenyl group, an unsubstituted or substituted perylenyl group, and an unsubstituted or substituted carbazolyl group). An organic light emitting device using the phenanthroline compound is also provided that has a light output with a high efficiency and a high luminance and has a high long-term durability.