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. 27, 2007
Filed:
Mar. 26, 2004
Motoki Ito, Soraku-gun, JP;
Daisuke Makibuchi, Soraku-gun, JP;
Yoshifumi Yamagata, Kokubu, JP;
Kouichi Maruta, Kokubu, JP;
Yuuko Yokota, Soraku-gun, JP;
Motoki Ito, Soraku-gun, JP;
Daisuke Makibuchi, Soraku-gun, JP;
Yoshifumi Yamagata, Kokubu, JP;
Kouichi Maruta, Kokubu, JP;
Yuuko Yokota, Soraku-gun, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
In a surface acoustic wave element, in which IDT electrodesand, a grounding electrode, etc. are formed one main surface of a piezoelectric substrate, resistorsmade of a semiconductor are provided to connection electrodesthat interconnect the respective electrodes. By forcing the charges generated in the IDT electrodes to move via the resistors, it is possible to provide a compact, highly reliable surface acoustic wave apparatus capable of preventing an electrostatic discharge damage in the IDT electrodes.