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. 02, 2006
Filed:
Jun. 16, 2004
Katsuro Yoneya, Toyoshina-machi, JP;
Katsuro Yoneya, Toyoshina-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A SAW filter including a piezoelectric substrate, an input electrodeand an output electrodeeach representing an interdigital electrode disposed on the piezoelectric substrateand two reflectorsanddisposed on the piezoelectric substratein an arrangement sandwiching both the input electrodeand the output electrodebetween the reflectors. Each of the electrodesandinclude a plurality of electrode fingersandrespectively. The electrode fingers are partially bent at an angle and include at least two linear sections which are spaced at a distance of λ/2 from one another in the propagating direction of the SAWs. The electrode fingersandof the output electrodeand electrode fingersof the reflectorare structured similarly to the electrode fingersandof the input electrode