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:
Jun. 30, 1998
Filed:
Dec. 13, 1996
Seiji Saeki, Namerlkawa, JP;
Yoshiharu Kuroda, Toyama, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A piezoelectric resonator has oscillating electrodes disposed on opposite major surfaces of a piezoelectric substrate, which oscillating electrodes are arranged so as to extend from respective opposite ends of the piezoelectric substrate to a central portion of the piezoelectric substrate so that the central portions of the oscillating electrodes overlap with each other, with the oscillating substrate sandwiched between the oscillating electrodes. Oscillation buffer materials are disposed on portions of the opposite major surfaces of the piezoelectric substrate, which portions are displaced by the third harmonic oscillation having a frequency which is substantially equal to about three times the resonance frequency of the piezoelectric substrate.