| Patent Number |
Title Of Patent |
Date Issued |
| 7372347 |
Surface acoustic wave device |
May 13, 2008 |
| A surface acoustic wave (SAW) device includes a piezoelectric substrate, a first and a second interdigital transducers (IDT) provided thereon. The second IDT has a side that is substantially aligned with a corresponding side of the first IDT, and another side of the second IDT is arrange |
| 7221074 |
Surface acoustic device |
May 22, 2007 |
| A surface acoustic wave device includes a piezoelectric substrate, a first and a second interdigital transducers (IDTs) provided on the piezoelectric substrate. The first IDT includes multiple tracks having different frequency characteristics that are connected in parallel. The secon |
| 7154360 |
Filter using piezoelectric material |
December 26, 2006 |
| A filter includes a piezoelectric substrate, and interdigital transducers (IDTs) that are formed on the piezoelectric substrate. At least one of the IDTs has a main electrode finger pattern that is weighted. The IDT having the main electrode finger pattern also has a sub electrode finger |
| 7002438 |
Surface acoustic wave device with reflection electrodes having pitches that vary |
February 21, 2006 |
| A surface acoustic wave device includes: a substrate; a pair of reflection electrodes that are formed on the substrate; and drive electrodes that are interposed between the reflection electrodes. In this surface acoustic wave device, the pitches in each of the reflection electrodes v |
