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:
May. 01, 2012
Filed:
Mar. 02, 2010
Masahiko Nakayama, Yokohama, JP;
Hiroaki Yoda, Sagamihara, JP;
Tadashi Kai, Tokyo, JP;
Hisanori Aikawa, Yokohama, JP;
Katsuya Nishiyama, Yokohama, JP;
Jyunichi Ozeki, Yokohama, JP;
Masahiko Nakayama, Yokohama, JP;
Hiroaki Yoda, Sagamihara, JP;
Tadashi Kai, Tokyo, JP;
Hisanori Aikawa, Yokohama, JP;
Katsuya Nishiyama, Yokohama, JP;
Jyunichi Ozeki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A magnetoresistive device includes: a magnetic recording layer including a first magnetic layer having perpendicular magnetic anisotropy, and a second magnetic layer having in-plane magnetic anisotropy and being exchange-coupled to the first magnetic layer, Curie temperature of the second magnetic layer being lower than Curie temperature of the first magnetic layer, and the magnetic recording layer having a magnetization direction perpendicular to a film plane; a magnetic reference layer having a magnetization direction which is perpendicular to a film plane and is invariable; and a nonmagnetic layer provided between the magnetic recording layer and the magnetic reference layer. The magnetization direction of the magnetic recording layer is changeable by spin-polarized electrons caused by flowing current between the magnetic recording layer and the magnetic reference layer in a direction perpendicular to the film plane.