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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 8927978 B1

PDFFull Text
Date of Patent:
Jan. 06, 2015

Filed:

Jul. 20, 2011

Organic el element

Applicants:

Shoji Mima, Tsukuba, JP;

Yoshinobu Ono, Tsukubamirai, JP;

Inventors:

Shoji Mima, Tsukuba, JP;

Yoshinobu Ono, Tsukubamirai, JP;

Assignee:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Galina Yushina

Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 21/31 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H05B 33/26 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/56 (2013.01); H01L 51/5092 (2013.01); H01L 51/5048 (2013.01); H01L 51/0022 (2013.01); H05B 33/26 (2013.01); H01L 51/0043 (2013.01); H01L 51/0005 (2013.01); H01L 51/0039 (2013.01); H01L 51/5221 (2013.01);
Abstract

An object of the invention is to provide an organic electroluminescence (EL) element formed using a relatively stable new electron injection material in an atmosphere of approximately ordinary pressure. An organic EL element of a preferable embodiment is an organic EL element including a supporting substrate, an anode, a light-emitting layer, an electron injection layer, and a cathode in this order, in which the electron injection layer is formed by applying an ink including an ionic polymer so as to form a film, and the cathode is formed by applying an ink including a material which forms the cathode so as to form a film or transferring a conductive thin film which forms the cathode.

Find Patent Forward Citations

Mima, Shoji. (2015). Organic el element (U.S. Patent No. 8927978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8927978

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

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