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:
Feb. 22, 2005
Filed:
Jul. 30, 2002
Applicants:
Michiaki Nishimura, Kokubu, JP;
Fumio Fujisaki, Kokubu, JP;
Hirotaka Tsuyoshi, Kokubu, JP;
Inventors:
Assignee:
Kyocera Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H009/00 ;
U.S. Cl.
CPC ...
Abstract
A piezoelectric resonator comprising a piezoelectric substrate having a tapered portion as viewed from the side thereof, and drive electrodes provided on both opposing tapered surfaces of said tapered portion. The piezoelectric resonator corrects the dispersion in the thickness of the piezoelectric substrate relying upon the positions where the drive electrodes are formed, and makes it easy to finely adjust he frequency for compensating the dispersion in the thickness.