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:
May. 19, 2026
Filed:
Feb. 22, 2022
Tdk Corporation, Tokyo, JP;
Takato Fukui, Tokyo, JP;
Taiju Akushichi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A detection device includes excitation coils each wound such that magnetic flux generated in the inner diameter area thereof flows out from one opening end toward the other opening end, magnetic members that induce magnetic flux from an opening end of one excitation coil to an opening end of the other excitation coil, and a magnetic detection part that detects magnetic flux flowing through the magnetic members. In this detection device, magnetic flux flowing out from an opening end of the other excitation coil to an opening end of the one excitation coil is applied to an object to be inspected to thereby detect the physical property of the object to be inspected. The excitation coils that generate magnetic fluxes flowing in mutually reverse directions are used, so that magnetic flux can be concentrated within a relatively narrow area of the object A to be inspected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile