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:
Apr. 17, 2017
Filed:
Sep. 08, 2015
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Toshihiro Iwakuma, Sodegaura, JP;
Chishio Hosokawa, Sodegaura, JP;
Hidetsugu Ikeda, Sodegaura, JP;
Seiji Tomita, Sodegaura, JP;
Takashi Arakane, Sodegaura, JP;
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Abstract
A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.