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. 18, 2008
Filed:
Mar. 28, 2006
Applicants:
Masayuki Funami, Kyoto, JP;
Yuuko Yokota, Kyoto, JP;
Kiyohiro Iioka, Kyoto, JP;
Inventors:
Assignee:
Kyocera Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a surface acoustic wave resonator which comprises, on a piezoelectric substrate, an IDT electrodeincluding bus bar electrodes, reflector electrodesdisposed to be adjacent to both sides of the IDT electrodein a main propagation direction F of surface acoustic waves at the IDT electrode, and auxiliary reflector electrodesthat are disposed at four positions external to the reflector electrodeson virtual straight lines extending from the bus bar electrodesof the IDT electrodein an inclined manner so that the periodic direction G of periodically arranged electrodesis oriented toward the IDT electrode