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:
Apr. 12, 2016
Filed:
Jan. 03, 2014
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Toshihiko Nagase, Yokohama, JP;
Daisuke Watanabe, Yokohama, JP;
Koji Ueda, Kamakura, JP;
Katsuya Nishiyama, Yokohama, JP;
Eiji Kitagawa, Yokohama, JP;
Kenji Noma, Yokohama, JP;
Tadashi Kai, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a magnetoresistive element includes first and second magnetic layers, a first nonmagnetic layer, a conductive layer. The first and second magnetic layers have axes of easy magnetization perpendicular to a film plane. The first and second magnetic layers have variable and invariable magnetization directions, respectively. The first nonmagnetic layer is between the first and second magnetic layers. The conductive layer is on a surface of the first magnetic layer opposite to a surface on which the first nonmagnetic layer is formed. The first magnetic layer has a structure obtained by alternately laminating magnetic and nonmagnetic materials. The nonmagnetic material includes at least one of Ta, W, Nb, Mo, Zr, Hf. The magnetic material includes Co and Fe. One of the magnetic materials contacts the first nonmagnetic layer. One of the nonmagnetic materials contacts the conductive layer.