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:
Jul. 22, 2014
Filed:
Apr. 28, 2009
Shigehiro Ueno, Tokyo-to, JP;
Keisuke Hashimoto, Tokyo-to, JP;
Masato Okada, Tokyo-to, JP;
Seiji Take, Tokyo-to, JP;
Yosuke Taguchi, Tokyo-to, JP;
Masataka Kano, Tokyo-to, JP;
Shin-ya Fujimoto, Tokyo-to, JP;
Shigehiro Ueno, Tokyo-to, JP;
Keisuke Hashimoto, Tokyo-to, JP;
Masato Okada, Tokyo-to, JP;
Seiji Take, Tokyo-to, JP;
Yosuke Taguchi, Tokyo-to, JP;
Masataka Kano, Tokyo-to, JP;
Shin-ya Fujimoto, Tokyo-to, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
A device capable of having an easy production process and achieving a long lifetime. The device has a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes. The positive hole injection transport layer has a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.