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:
Sep. 27, 2005
Filed:
Oct. 24, 2003
Masayoshi Hiramoto, Ikoma, JP;
Nozomu Matsukawa, Nara, JP;
Akihiro Odagawa, Nara, JP;
Mitsuo Satomi, Katano, JP;
Yasunari Sugita, Osaka, JP;
Yoshio Kawashima, Neyagawa, JP;
Masayoshi Hiramoto, Ikoma, JP;
Nozomu Matsukawa, Nara, JP;
Akihiro Odagawa, Nara, JP;
Mitsuo Satomi, Katano, JP;
Yasunari Sugita, Osaka, JP;
Yoshio Kawashima, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A magnetic memory of the present invention includes two or more memory layers and two or more tunnel layers that are stacked in the thickness direction of the layers. The two or more memory layers are connected electrically in series. A group of first layers includes at least one layer selected from the two or more memory layers. A group of second layers includes at least one layer selected from the two or more memory layers. A resistance change caused by magnetization reversal in the group of first layers differs from a resistance change caused by magnetization reversal in the group of second layers.