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:
Sep. 01, 2015
Filed:
Oct. 31, 2007
Yoriyuki Takashima, Chiba, JP;
Masakazu Funahashi, Chiba, JP;
Kiyoshi Ikeda, Chiba, JP;
Chishio Hosokawa, Chiba, JP;
Yoriyuki Takashima, Chiba, JP;
Masakazu Funahashi, Chiba, JP;
Kiyoshi Ikeda, Chiba, JP;
Chishio Hosokawa, Chiba, JP;
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Abstract
A fluoranthene compound with a specified asymmetric structure; an organic EL device which is composed of one or more organic compound layers including at least one emitting layer sandwiched between a pair of electrodes, wherein at least one of the organic compound layers contains at least one kind of the fluoranthene compound; and a solution containing a material for the organic EL which is composed of the fluoranthene compound as the material for the organic EL and a solvent. An organic electroluminescence (EL) device having a superior luminance of light emission, an enhanced efficiency of light emission, and a prolonged lifetime and a compound realizing the device are provided.