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. 30, 2025
Filed:
Aug. 28, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Keisuke Ogawa, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A filter device includes a main body, an input terminal, an output terminal, a ground terminal, and resonators. The resonators are located in the main body and are electro-magnetically coupled with each other so as to transmit a signal from the input terminal to the output terminal. Each of the resonators includes a first path connected from nodes via capacitors to the ground terminal, and a second path connected from the nodes to the ground terminal without passing through the capacitors. The second path of a first resonator and the second path of a second resonator are partially shared. The filter device further includes a third path connected with the node of the first resonator and the node of the second resonator.