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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.:

US 10249812 B1

PDFFull Text
Date of Patent:
Apr. 02, 2019

Filed:

May. 03, 2017

Filter and multiplexer

Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventor:

Yoshio Satoh, Tokyo, JP;

Assignee:

TAIYO YUDEN CO., LTD., Tokyo, JP;

Attorney:

Chen Yoshimura LLP

Primary Examiner:

Dean O Takaoka

Int. Cl.
CPC ...
H03H 9/56 (2006.01); H03H 9/60 (2006.01); H01L 41/107 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01); H03H 9/70 (2006.01);
U.S. Cl.
CPC ...
H01L 41/107 (2013.01); H03H 9/605 (2013.01); H03H 9/6483 (2013.01); H03H 9/706 (2013.01); H03H 9/725 (2013.01);
Abstract

A filter includes: an input terminal; an output terminal; and a ladder circuit that includes one or more series acoustic wave resonators connected in series between the input terminal and the output terminal and one or more parallel acoustic wave resonators connected in parallel between the input terminal and the output terminal, and in which characteristic impedance of at least one point in a pathway between the input terminal and the output terminal in a passband is greater than at least one of input impedance of the input terminal and output impedance of the output terminal in the passband.

Find Patent Forward Citations

Satoh, Yoshio. (2019). Filter and multiplexer (U.S. Patent No. 10249812). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10249812

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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