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Class Information
Number: 310/334
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means > Acoustic wave type generator or receiver
Description: Subject matter wherein the mechanical energy applied to or produced by the piezoelectric element is disclosed as being caused by or producing traveling compressions in an elastic material.

Sub-classes under this class:

Class Number Class Name Patents
310/336 Nondestructive testing type 211
310/337 Underwater type 323
310/335 With lens or reflector 299

Patents under this class:

Patent Number Title Of Patent Date Issued
8710717 Piezoelectric ultrasonic transducer apparatus Apr. 29, 2014
8692441 Method for forming an ultrasonic transducer, and associated apparatus Apr. 8, 2014
8689639 Ultrasonic transducer having a matching layer between a piezoelectric element and a coupling element Apr. 8, 2014
8689416 Method for manufacturing surface acoustic wave element Apr. 8, 2014
8680931 Periodic signal generators having microelectromechanical resonators therein that support surface wave and bulk acoustic wave modes of operation with different temperature coefficients of frequ Mar. 25, 2014
8680747 Output adjustment circuit, ultrasonic transducer device component, and ultrasonic transducer device Mar. 25, 2014
8680745 Device for measuring material thickness Mar. 25, 2014
8674587 Ultrasonic transducer and fabricating the same Mar. 18, 2014
8669690 Piezolelectric sound-generating device Mar. 11, 2014
8664830 Ultrasonic device Mar. 4, 2014
8660786 Positioning module Feb. 25, 2014
8659212 Ultrasound transducer and method for manufacturing an ultrasound transducer Feb. 25, 2014
8656578 Method for manufacturing an ultrasound imaging transducer assembly Feb. 25, 2014
8637945 Component having a micromechanical microphone structure, and method for its production Jan. 28, 2014
8624469 Micromachined ultrasonic transducer with air-backed cavity and electrical connection Jan. 7, 2014
8604672 Multilayer acoustic impedance converter for ultrasonic transducers Dec. 10, 2013
8604671 Ultrasound transducer, ultrasound probe, and a method for manufacturing ultrasound transducers Dec. 10, 2013
8587391 Acoustic coupling layer for coupled resonator filters and method of fabricating acoustic coupling layer Nov. 19, 2013
8581472 Ultrasonic probe and manufacturing method thereof Nov. 12, 2013
8574159 Thermally enhanced ultrasonic probe Nov. 5, 2013
8564177 Piezopolymer transducer with matching layer Oct. 22, 2013
8562534 Ultrasonic probe Oct. 22, 2013
8561270 Composite ceramic structure and method of making the same Oct. 22, 2013
8558431 Output adjustment circuit, ultrasonic transducer device component, and ultrasonic transducer device Oct. 15, 2013
8551003 Ultrasonic probe and ultrasonic diagnosis device Oct. 8, 2013
8547000 Ultrasonic, flow measuring device Oct. 1, 2013
8546999 Housing arrangements for ultrasonic surgical instruments Oct. 1, 2013
8532316 Flat panel piezoelectric loudspeaker Sep. 10, 2013
8531178 Ultrasound probe, method for manufacturing the same, and ultrasound diagnostic apparatus Sep. 10, 2013
8531089 Array-type ultrasonic vibrator Sep. 10, 2013
8519600 Ultrasonic transducer Aug. 27, 2013
8508315 Acoustically coupled resonator filter with impedance transformation ratio controlled by resonant frequency difference between two coupled resonators Aug. 13, 2013
8508107 Low frequency oscillator, the omni-directional type low frequency underwater acoustic transducer using the same and the cylindrical radiation type low frequency underwater acoustic transducer Aug. 13, 2013
8508106 Electroacoustic transducer Aug. 13, 2013
8508103 Piezoelectric identification device and applications thereof Aug. 13, 2013
8506484 Ultrasonic imaging device Aug. 13, 2013
8492954 Ultrasonic sensor Jul. 23, 2013
8469894 Ultrasonic probe and ultrasonic diagnostic device Jun. 25, 2013
8466605 Patterned ultrasonic transducers Jun. 18, 2013
8461746 Liquid control apparatus Jun. 11, 2013
8450907 Sound generator for use in parametric array May. 28, 2013
8446078 Mechanical resonating structures and methods May. 21, 2013
8446071 Thermally enhanced ultrasound transducer system May. 21, 2013
8415860 Spring disc energy harvester apparatus and method Apr. 9, 2013
8413762 Thermal-acoustic sections for an aircraft Apr. 9, 2013
8410666 Ultrasonic probe and method of manufacturing the same Apr. 2, 2013
8410665 MEMS kinetic energy conversion Apr. 2, 2013
8410664 Method for changing ultrasound wave frequency by using the acoustic matching layer Apr. 2, 2013
8406084 Transducer device having coupled resonant elements Mar. 26, 2013
8405281 Transducer for ultrasonic diagnosis device and method for manufacturing the same Mar. 26, 2013

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