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:
Feb. 07, 2006
Filed:
Oct. 20, 2004
Yoshiaki Saito, Kawasaki, JP;
Masayuki Sagoi, Yokohama, JP;
Minoru Amano, Kawasaki, JP;
Kentaro Nakajima, Tokyo, JP;
Shigeki Takahashi, Yokohama, JP;
Tatsuya Kishi, Yokohama, JP;
Yoshiaki Saito, Kawasaki, JP;
Masayuki Sagoi, Yokohama, JP;
Minoru Amano, Kawasaki, JP;
Kentaro Nakajima, Tokyo, JP;
Shigeki Takahashi, Yokohama, JP;
Tatsuya Kishi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
There is provided a magnetoresistance effect element including a first pinned ferromagnetic layer, a second pinned ferromagnetic layer facing the first pinned ferromagnetic layer, surface regions of the first and second pinned ferromagnetic layer facing each other being different from each other in composition, a free ferromagnetic layer intervening between the first and second pinned ferromagnetic layers, a first tunnel barrier layer intervening between the first pinned ferromagnetic layer and the free ferromagnetic layer, and a second tunnel barrier layer intervening between the second pinned ferromagnetic layer and the free ferromagnetic layer.