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:
Feb. 22, 2011
Filed:
Dec. 04, 2008
Yukio Tamai, Tsuchiura, JP;
Yasunari Hosoi, Fukuyama, JP;
Nobuyoshi Awaya, Fukuyama, JP;
Shigeo Ohnishi, Fukuyama, JP;
Kazuya Ishihara, Kurashiki, JP;
Hisashi Shima, Tsukuba, JP;
Fumiyoshi Takano, Tsukuba, JP;
Hiroyuki Akinaga, Tsukuba, JP;
Yukio Tamai, Tsuchiura, JP;
Yasunari Hosoi, Fukuyama, JP;
Nobuyoshi Awaya, Fukuyama, JP;
Shigeo Ohnishi, Fukuyama, JP;
Kazuya Ishihara, Kurashiki, JP;
Hisashi Shima, Tsukuba, JP;
Fumiyoshi Takano, Tsukuba, JP;
Hiroyuki Akinaga, Tsukuba, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
The variable resistance element of the present invention is a variable resistance element having an electrode, the other electrode, and a metal oxide material sandwiched between the electrodes and having an electrical resistance, between the electrodes, changing reversibly in response to a voltage applied between the electrodes. The variable resistance element further includes, inside the metal oxide material, a low resistance material having a lower electrical resistance than the metal oxide material and being out of contact with at least either one of the electrodes. This makes it possible to reduce a forming voltage for providing a conductive section inside the metal oxide material, without causing a leakage current to increase.