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:
Nov. 12, 2024
Filed:
Feb. 21, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Shoma Kajikiya, Tokyo, JP;
Masaki Matsushima, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 5/10 (2015.01); H01Q 7/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 7/00 (2013.01); H01Q 5/10 (2015.01);
Abstract
Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.