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. 14, 2014
Filed:
Aug. 10, 2012
Tao Yang, Yokohama, JP;
Hirofumi Suto, Tokyo, JP;
Tazumi Nagasawa, Yokohama, JP;
Kiwamu Kudo, Kamakura, JP;
Rie Sato, Yokohama, JP;
Koichi Mizushima, Kamakura, JP;
Tao Yang, Yokohama, JP;
Hirofumi Suto, Tokyo, JP;
Tazumi Nagasawa, Yokohama, JP;
Kiwamu Kudo, Kamakura, JP;
Rie Sato, Yokohama, JP;
Koichi Mizushima, Kamakura, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a magnetic medium includes at least one recording layer including a first magnetic layer, a second magnetic layer and a non-magnetic layer. The first magnetic layer is form of a first magnetic material having a first magnetic anisotropy. The second magnetic layer is made of a second magnetic material having a second magnetic anisotropy different from the first magnetic anisotropy. The non-magnetic layer is made of a non-magnetic material and between the first and second magnetic layers, the first magnetic layer and the second magnetic layer being coupled such that directions of magnetization of the first and second magnetic layers are opposed to each other.