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:
Oct. 20, 2015
Filed:
Sep. 16, 2011
Eiji Kitagawa, Yokohama, JP;
Tadaomi Daibou, Yokohama, JP;
Tadashi Kai, Tokyo, JP;
Toshihiko Nagase, Yokohama, JP;
Kenji Noma, Yokohama, JP;
Hiroaki Yoda, Kawasaki, JP;
Eiji Kitagawa, Yokohama, JP;
Tadaomi Daibou, Yokohama, JP;
Tadashi Kai, Tokyo, JP;
Toshihiko Nagase, Yokohama, JP;
Kenji Noma, Yokohama, JP;
Hiroaki Yoda, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a magnetoresistive element includes a recording layer having a variable magnetization direction, a reference layer having an invariable magnetization direction, an intermediate layer provided between the recording layer and the reference layer, and a first buffer layer provided on a surface of the recording layer, which is opposite to a surface of the recording layer where the intermediate layer is provided. The recording layer comprises a first magnetic layer which is provided in a side of the intermediate layer and contains CoFe as a main component, and a second magnetic layer which is provided in a side of the first buffer layer and contains CoFe as a main component, a concentration of Fe in the first magnetic layer being higher than a concentration of Fe in the second magnetic layer. The first buffer layer comprises a nitrogen compound.