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 8071993 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 06, 2011

Filed:

Jul. 29, 2009
Applicants:

Hironobu Iwawaki, Yokohama, JP;

Mizuho Hiraoka, Kawasaki, JP;

Hiroki Ohrui, Kawasaki, JP;

Masumi Itabashi, Kodaira, JP;

Masanori Muratsubaki, Hachioji, JP;

Naoki Yamada, Inagi, JP;

Kei Tagami, Yokohama, JP;

Inventors:

Hironobu Iwawaki, Yokohama, JP;

Mizuho Hiraoka, Kawasaki, JP;

Hiroki Ohrui, Kawasaki, JP;

Masumi Itabashi, Kodaira, JP;

Masanori Muratsubaki, Hachioji, JP;

Naoki Yamada, Inagi, JP;

Kei Tagami, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract

An organic electroluminescence element includes organic compound layers disposed between electrodes, the concentration of halogen atoms contained in organic compounds of the organic compound layers being 1 ppm or less according to combustion ion chromatography.


Find Patent Forward Citations

Iwawaki, Hironobu. (2011). Organic electroluminescence element, image display device, and imaging apparatus (U.S. Patent No. 8071993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8071993

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

Loading…