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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.:

US 8916275 B1

PDFFull Text
Date of Patent:
Dec. 23, 2014

Filed:

Mar. 25, 2010

Light emitting device material and light emitting device

Applicants:

Yohei Nakano, Otsu, JP;

Kazunori Sugimoto, Otsu, JP;

Kazumasa Nagao, Otsu, JP;

Daisaku Tanaka, Otsu, JP;

Tsuyoshi Tominaga, Otsu, JP;

Inventors:

Yohei Nakano, Otsu, JP;

Kazunori Sugimoto, Otsu, JP;

Kazumasa Nagao, Otsu, JP;

Daisaku Tanaka, Otsu, JP;

Tsuyoshi Tominaga, Otsu, JP;

Assignee:

Toray Industries, Inc., , JP;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

J L Yang

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C07D 401/10 (2006.01); C07D 215/12 (2006.01); C07D 213/16 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); C09B 57/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H01L 51/0054 (2013.01); H01L 51/0058 (2013.01); H01L 51/006 (2013.01); C09B 57/00 (2013.01); C09B 57/001 (2013.01); C09K 2211/1011 (2013.01); H01L 51/0056 (2013.01); H01L 51/0072 (2013.01); H01L 51/5012 (2013.01); H01L 51/5052 (2013.01); Y10S 428/917 (2013.01);
Abstract

Disclosed is an organic electroluminescent element which has achieved both high luminous efficiency and low driving voltage by containing a light-emitting element material, which comprises a specific pyrene compound, in one of the layers that constitute the light-emitting element, preferably in a light-emitting layer or in an electron-transporting layer. The pyrene compound may have the following general formula:

Find Patent Forward Citations

Nakano, Yohei. (2014). Light emitting device material and light emitting device (U.S. Patent No. 8916275). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8916275

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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