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:
Apr. 16, 2002
Filed:
Jul. 28, 2000
Applicant:
Inventor:
Masao Gamo, Takaoka, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/13 ; H01L 4/1047 ;
U.S. Cl.
CPC ...
H03H 9/13 ; H01L 4/1047 ;
Abstract
A balanced input-output piezoelectric filter includes a piezoelectric ceramic substrate provided therein with a ground electrode. Input electrodes and output electrodes are located on both major surfaces of the piezoelectric ceramic substrate so as to be adjacent to each other. The input electrodes function as a balanced-circuit connecting electrode and are connected to balanced input terminals. The output electrodes function as a balanced-circuit connecting electrode and are connected to balanced output terminals.