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:
Nov. 12, 2013
Filed:
Jun. 13, 2005
Toshihiro Iwakuma, Sodegaura, JP;
Hiroshi Yamamoto, Sodegaura, JP;
Yoshio Hironaka, Sodegaura, JP;
Hidetsugu Ikeda, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Seiji Tomita, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Toshihiro Iwakuma, Sodegaura, JP;
Hiroshi Yamamoto, Sodegaura, JP;
Yoshio Hironaka, Sodegaura, JP;
Hidetsugu Ikeda, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Seiji Tomita, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A material for organic electroluminescence devices comprising a compound in which a heterocyclic group having nitrogen is bonded to an arylcarbazolyl group or a carbazolylalkylene group and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer comprising at least one layer and disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices described above. The material can provide an organic electro-luminescence device emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.