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:
Nov. 17, 2020
Filed:
Oct. 04, 2018
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventor:
Yuichi Takamine, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/05 (2006.01); H03H 9/10 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01); H04L 5/14 (2006.01); H04B 1/50 (2006.01); H04B 1/40 (2015.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02913 (2013.01); H03H 9/059 (2013.01); H03H 9/0576 (2013.01); H03H 9/1092 (2013.01); H03H 9/25 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01); H04B 1/40 (2013.01); H04B 1/50 (2013.01); H04L 5/1461 (2013.01); H03H 9/02952 (2013.01); H04B 1/0057 (2013.01);
Abstract
A composite filter device includes a common terminal disposed on an element substrate including a piezoelectric layer, first and second band pass filters disposed on the element substrate, and connected at one end thereof to the common terminal, a shield electrode interposed between a signal line and the first band pass filter, the signal line being disposed on the element substrate and connecting the common terminal to the first and second band pass filters, and an inductor connected between the shield electrode and a reference potential line.