220596 ⎘
Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Details of surface acoustic wave devices; Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the edges
Acoustic wave resonators having fresnel surfaces
#2Acoustic wave device and method of fabricating the same, filter and multiplexer
#3Acoustic wave resonators having Fresnel surfaces
#4Acoustic wave device and method for producing same
#5Acoustic wave device and method for producing same