ACOUSTIC FILTERS

Brand	Owner	Address	Description
AWS	FLODESIGN SONICS, INC.	11 Interstate Dr., Ste. 200 West Springfield MA 01089	acoustic filters; acoustic filters for blood and blood components for laboratory use; systems, namely, acoustic separation units for filtering disperse phase from a fluid, cell clarification, cell separation, cell segregation, and perfusion; systems, namely, acoustic separation units for industrial processes, namely, oil and water separation, fluidized bed chromatography, and microparticle affinity separation;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The present invention provides a surface acoustic wave device that allows a plurality of surface acoustic wave filters to be formed on a single chip and permits greater miniaturization. The surface acoustic wave device comprises a piezoelectric substrate, a first surface acoustic wave resonator formed on the piezoelectric substrate, and a second surface acoustic wave resonator formed on the piezoelectric substrate in the surface acoustic wave propagation direction of the first surface acoustic wave resonator. The positions in which the first and second surface acoustic wave resonators are formed on the piezoelectric substrate are in an at least partially overlapping relationship in a surface acoustic wave propagation region that is defined by virtually extending the respective openings of the first and second surface acoustic wave resonators. The surface acoustic wave device further comprises a part for dividing the overlap surface acoustic wave propagation region into an upper half and a lower half and for affording the phases of surface acoustic waves that are propagated by the first surface acoustic wave resonator a mutually antiphase relationship in the upper-half region and lower-half region thus divided.