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:
Dec. 16, 2025
Filed:
Feb. 27, 2023
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Yuta Ashida, Tokyo, JP;
Masahiro Tatematsu, Tokyo, JP;
Shuhei Sawaguchi, Tokyo, JP;
Keigo Shibuya, Tokyo, JP;
Tetsuzo Goto, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/203 (2006.01); H01P 1/207 (2006.01); H01P 7/06 (2006.01);
U.S. Cl.
CPC ...
H01P 1/207 (2013.01); H01P 1/20345 (2013.01); H01P 7/06 (2013.01);
Abstract
A filter device includes a ground conductor layer, at least one through hole electrically connected to the ground conductor layer, a first resonator conductor layer and a second resonator conductor layer arranged to sandwich the at least one through hole, and a stack. The first resonator conductor layer extends in a first direction becoming away from the at least one through hole, i.e., the −X direction. The second resonator conductor layer extends in a second direction becoming away from the at least one through hole, i.e., the X direction.