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:
Apr. 10, 2018
Filed:
May. 13, 2015
Iii Holdings 3, Llc, Wilmington, DE (US);
Yasushi Ogimoto, Higashiyamato, JP;
III HOLDINGS 3, LLC, Wilmington, DE (US);
Abstract
A non-contact current sensor includes a spin valve structure (), an electrical unit () that applies a varying current to the spin valve structure (), and a resistance reading unit that electrically reads out a resistance value of the spin valve structure (). When a current-induced magnetic field is detected, a coercive force of a free layer () is configured to be larger than the current-induced magnetic field as a detection target, and the electrical unit () allows the magnetization directions of a pinned layer () and the free layer () to transition between a mutually parallel state and a mutually anti-parallel state by applying the current to the spin valve structure (). The resistance reading unit () detects a threshold value corresponding to the transition.