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:
Jun. 30, 2015
Filed:
Aug. 07, 2013
Kabushiki Kaisha Toshiba, Tokyo, JP;
Makoto Nagamine, Tokyo, JP;
Daisuke Ikeno, Yokohama, JP;
Katsuya Nishiyama, Yokohama, JP;
Katsuaki Natori, Yokohama, JP;
Koji Yamakawa, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, a magnetoresistive effect element includes a first ferromagnetic layer, a tunnel barrier formed on the first ferromagnetic layer, and a second ferromagnetic layer formed on the tunnel barrier layer. The tunnel barrier includes a nonmagnetic oxide having a spinel structure. Oxides forming the spinel structure are combined such that a single phase is formed by a solid phase in a component ratio region including a component ratio corresponding to the spinel structure and having a width of not less than 2%.