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. 09, 2002
Filed:
May. 13, 2000
Applicant:
Inventors:
Kunio Sawai, Ishikawa-ken, JP;
Hisayuki Hashimoto, Takaoka, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/54 ; H03H 9/02 ;
U.S. Cl.
CPC ...
H03H 7/54 ; H03H 9/02 ;
Abstract
A low-cost piezoelectric component which is efficiently manufactured and which provides excellent electrical characteristics, includes a piezoelectric element, a damping member, a supporting substrate for mounting the piezoelectric element, and a cover member. On a surface of the piezoelectric element, the damping member has a predetermined hardness and a vibrating electrode. In the case of a piezoelectric trap filter, a damping member is provided which has a Shore hardness of about 35 to about 80. In the case of a piezoelectric discriminator, the damping member has a Shore hardness of about 80 to about 100.