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:
Jul. 15, 2025
Filed:
Aug. 23, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Naoki Oshima, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A composite filter device includes a piezoelectric substrate, a transmission filter, a reception filter, a first capacitance element, and a second capacitance element. The transmission filter includes a first parallel arm resonator connected to a first reference potential electrode. The reception filter includes a second parallel arm resonator connected to a second reference potential electrode. The first capacitance element is connected between a signal line in the reception filter and the first reference potential electrode. The second capacitance element is connected to the signal line and the second reference potential electrode in the reception filter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile