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. 12, 2017
Filed:
Apr. 14, 2016
Tdk Corporation, Tokyo, JP;
Tsuyoshi Suzuki, Tokyo, JP;
Eiji Suzuki, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A magnetoresistive effect oscillator executes a first step of applying a current, which has a first current density larger than a critical current density Jfor oscillation, to a magnetoresistive effect element for a time T, and then executes a second step of applying a current, which has a second current density Jsmaller than the first current density and not smaller than the critical current density Jfor oscillation, to the magnetoresistive effect element. The following formulae (1), (2) and (3), or the following formulae (1) and (4) are satisfied on an assumption that an average value of the first current density during the time Tin the first step is J, a critical current density for magnetization reversal of the magnetoresistive effect element is J, and a magnetization reversal time of the magnetoresistive effect element is T: