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. 07, 2000
Filed:
Apr. 02, 1997
Applicant:
Inventors:
Toshihiko Unami, Omihachiman, JP;
Jiro Inoue, Omihachiman, JP;
Assignee:
Murata Manufacturing Co., LTD, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H03H / ;
U.S. Cl.
CPC ...
310328 ; 310348 ;
Abstract
A piezoelectric resonator has a base member including laminated piezoelectric layers and internal electrodes. The base member is polarized in different directions at both sides of each internal electrode. The internal electrodes are alternately covered by insulating film on opposing side surfaces of the base member. External electrodes are formed on the opposing side surfaces of the base member and the internal electrodes are connected thereto, respectively.