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:
Oct. 06, 2026
Filed:
Dec. 27, 2024
Tdk Corporation, Tokyo, JP;
Shoma Kajikiya, Tokyo, JP;
Toshio Tomonari, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
Disclosed herein is an antenna device that includes a metal plate having a through hole, a first coil wound along the through hole and having an opening that overlaps the through hole, and a second coil wound along an outer edge of the metal plate and connected to the first coil. The edge of the through hole includes a first edge positioned on one side in a first direction as viewed from a center of the first through hole and a second edge positioned on another side in the first direction as viewed from the center of the first through hole. The first edge has a first protruding part protruding toward the second edge and overlapping a winding area of the first coil. The second edge has a second protruding part protruding toward the first edge and overlapping the winding area of the first coil.