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. 21, 2025
Filed:
Oct. 11, 2023
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Toshiyuki Takami, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H03H 7/46 (2006.01);
U.S. Cl.
CPC ...
H03H 7/0115 (2013.01); H03H 7/461 (2013.01); H03H 7/463 (2013.01);
Abstract
A branching filter includes a first diplexer, a second diplexer, and a third diplexer. An input end of the first diplexer is connected to an input port. An input end of the second diplexer and an input end of the third diplexer are connected to two output ends of the first diplexer, respectively. Two output ends of the second diplexer are connected to first and second output ports, respectively. Two output ends of the third diplexer are connected to third and fourth output ports, respectively.