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:
May. 07, 2013
Filed:
May. 30, 2008
Tsuyoshi Nakai, Kyoto, JP;
Tsuyoshi Nakai, Kyoto, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
On a piezoelectric board, a SAW element has first to fifth IDT electrodes and reflector electrodes with first to fourth electrode-finger narrow-pitch portions N-Nbeing formed in the respective ones of adjoining portions of the respective first to fifth IDT electrodes. An unbalanced signal terminal and balanced signal terminals are connected to the SAW element. The electrode finger pitches of the first to fourth electrode-finger narrow-pitch portions N-Nare formed symmetrically with respect to the third, central IDT electrode in such a manner that the electrode finger pitch of the first electrode-finger narrow-pitch portion Nis narrower than that of the second electrode-finger narrow-pitch portion N, while the electrode finger pitch of the fourth electrode-finger narrow-pitch portion Nis narrower than that of the third electrode-finger narrow-pitch portion N