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:
Mar. 06, 2001
Filed:
Nov. 03, 1999
Hiroaki Kaida, Moriyama, JP;
Toru Nagae, Omihachiman, JP;
Abstract
A thickness extensional vibration piezoelectric resonator includes a strip-type, substantially rectangular plate-shaped piezoelectric body, first and second excitation electrodes disposed on both sides of the piezoelectric body, the back side and the front sides thereof being opposed to each other with the piezoelectric body disposed therebetween, and an internal electrode disposed in the piezoelectric body. The resonator portion where the first and second excitation electrodes and the internal electrode are opposed to each other define a resonance portion. In the longitudinal direction (a first direction) of the piezoelectric body, vibration-attenuating portions are provided on both sides of the resonance portion. The ratio L/D is within the range of about 9.0 to about 14.0, in which L is the length in the longitudinal direction of the piezoelectric body, T is the thickness, and wherein D=T/N.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile