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:
Aug. 20, 2013
Filed:
Sep. 17, 2010
Takafumi Shimizu, Tokyo, JP;
Kenji Tsuchida, Kawasaki, JP;
Yoshihiro Ueda, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a magnetic memory includes a magnetoresistive element includes a fixed layer whose magnetization direction is fixed, a recording layer whose magnetization direction is variable and a nonmagnetic layer disposed between the fixed layer and the recording layer. A direction of a read current is set to a first direction in a case where an expression of MR ratio ≧|I/I|−1 is satisfied if a critical current of the first direction used to write the magnetoresistive element to the parallel state is set to Iand a critical current of a second direction used to write the magnetoresistive element to the anti-parallel state is set to I.