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.

Date of Patent:
Jan. 16, 2024

Filed:

Feb. 09, 2021
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventor:

Kenichi Uesaka, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/00 (2006.01); H03H 9/72 (2006.01); H03H 9/25 (2006.01); H03H 9/145 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6479 (2013.01); H03H 9/0009 (2013.01); H03H 9/145 (2013.01); H03H 9/25 (2013.01); H03H 9/72 (2013.01);
Abstract

An acoustic wave filter device includes first and second terminals, a longitudinally coupled resonator coupled between the first terminal and the second terminal, and an inductor connected between a path and a ground potential, the path connecting the first terminal and the longitudinally coupled resonator to each other. The longitudinally coupled resonator includes at least one first IDT electrode coupled to the first terminal, and at least one second IDT electrode connected to the second terminal. A total capacitance value of the at least one first IDT electrode is smaller than a total capacitance value of the at least one second IDT electrode.


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Uesaka, Kenichi. (2024). Acoustic wave filter device and multiplexer using same (U.S. Patent No. 11876505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11876505

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