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. 23, 2025
Filed:
Apr. 21, 2023
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventor:
Yasumasa Taniguchi, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/205 (2006.01); H03H 9/02 (2006.01); H03H 9/145 (2006.01); H03H 9/54 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
H03H 9/205 (2013.01); H03H 9/02015 (2013.01); H03H 9/14541 (2013.01); H03H 9/54 (2013.01); H03H 9/6483 (2013.01);
Abstract
A filter device includes resonators including at least one series arm resonator and at least one parallel arm resonator. The resonators include a parallel arm resonator defining and functioning as a first resonator with a largest fractional bandwidth among the resonators, and at least one second resonator. The filter device includes an inductor connected in series to the first resonator.