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 7977671 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 12, 2011

Filed:

Nov. 19, 2009
Applicants:

Tetsuzo Miki, Tsukuba, JP;

Makoto Nagaoka, Tsukuba, JP;

Shuichi Hayashi, Tsukuba, JP;

Yoshio Taniguchi, Ueda, JP;

Musubu Ichikawa, Ueda, JP;

Inventors:

Tetsuzo Miki, Tsukuba, JP;

Makoto Nagaoka, Tsukuba, JP;

Shuichi Hayashi, Tsukuba, JP;

Yoshio Taniguchi, Ueda, JP;

Musubu Ichikawa, Ueda, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 35/24 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a compound having an oxadiazole ring structure having a substituted pyridyl group connected thereto, represented by the following general formula (1). According to the present invention, it becomes possible to provide an organic compound having excellent characteristic of high stability in a thin film state, and the emission efficiency and durability of conventional organic EL devices can be remarkably improved.


Find Patent Forward Citations

Miki, Tetsuzo. (2011). Compound having oxadiazole ring structure substituted with pyridyl group and organic electroluminescence device (U.S. Patent No. 7977671). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7977671

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