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Class Information
Number: 310/323.01
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Combined with resonant structure > Direct mechanical coupling
Description: Subject matter in which the resonant structure physically contacts a body on which it performs work, or from which it receives energy.










Sub-classes under this class:

Class Number Class Name Patents
310/323.21 Detector (e.g., sensor) 130
310/323.18 Device performs work on an object (e.g., welding, cutting) 69
310/323.19 Horn or transmission line 84
310/323.02 Motor producing continual motion 403
310/323.17 Positions an object 160


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8664831 Electromechanical motor, especially a piezoelectric microstepper drive Mar. 4, 2014
8657027 Single piezo-actuator rotary-hammering (SPaRH) drill Feb. 25, 2014
8638023 Ultrasonic oscillating device with a detachable ultrasonic oscillating assembly Jan. 28, 2014
8618716 Electromechanical motor, especially a piezoelectric microstepper drive Dec. 31, 2013
8598969 PCB-based tuners for RF cavity filters Dec. 3, 2013
8558498 Drive device Oct. 15, 2013
8531085 Vibration actuator and electric device Sep. 10, 2013
8508057 Power generator Aug. 13, 2013
8482185 Ultrasonic actuator Jul. 9, 2013
8461744 Rotating transducer mount for ultrasonic surgical instruments Jun. 11, 2013
8456068 Piezoelectric actuator for use in micro engineering applications Jun. 4, 2013
8450905 Methods for controlling velocity of at least partially resonant actuators systems and systems thereof May. 28, 2013
8445837 Vibration actuator for rotating a rotating axle and image capturing apparatus May. 21, 2013
8446068 Ultrasonic motor May. 21, 2013
8441171 Motor device, method of manufacturing motor device, and robot device May. 14, 2013
8390171 Ultrasonic motor mechanism Mar. 5, 2013
8373331 Use of piezo motor to operate a ring pointer over display Feb. 12, 2013
8369037 Actuator assembly and optical system having the same Feb. 5, 2013
8368287 Ultrasonic motor mechanism Feb. 5, 2013
8350446 Vibratory actuator and drive device using the same Jan. 8, 2013
8344591 Vibration actuator and imaging device Jan. 1, 2013
8330327 Piezoelectric oscillator and ultrasonic motor Dec. 11, 2012
8330328 Ultrasonic motor Dec. 11, 2012
8320063 Actuator and optical device Nov. 27, 2012
8303613 Ultrasonic instrument using langevin type transducers to create transverse motion Nov. 6, 2012
8294335 Ultrasonic motor Oct. 23, 2012
8288020 Piezoelectric thin film and method of manufacturing the same, ink jet head, method of forming image with the ink jet head, angular velocity sensor, method of measuring angular velocity with th Oct. 16, 2012
8288919 Vibratory actuator Oct. 16, 2012
8274198 Ultrasonic motor and conveying apparatus having the same Sep. 25, 2012
8253303 Ultrasonic device for cutting and coagulating with stepped output Aug. 28, 2012
8237330 Vibrating element, fabrication method thereof, and ultrasonic motor having the same Aug. 7, 2012
8237331 Vibratory actuator and drive unit including the same Aug. 7, 2012
8217554 Ultrasonic vibration system and method for removing/avoiding unwanted build-up on structures Jul. 10, 2012
8203224 Power generator Jun. 19, 2012
8183744 Piezoelectric motor May. 22, 2012
8183742 Piezoelectric rotary motor with high rotation speed and bi-directional operation May. 22, 2012
8179019 Positioning apparatus and method May. 15, 2012
8164233 Drive apparatus Apr. 24, 2012
8110967 Spherical rotary piezoelectric motor Feb. 7, 2012
8084921 Ultrasonic motor drive apparatus Dec. 27, 2011
8072843 Stepped multiply resonant wideband transducer apparatus Dec. 6, 2011
8049396 Piezoelectric ultrasonic motor and method of manufacturing the same Nov. 1, 2011
8035275 Vibration actuator, lens barrel, camera system and vibrating element Oct. 11, 2011
8018123 Ultrasonic actuator Sep. 13, 2011
8013495 Stator and piezo ultrasonic motor including the same Sep. 6, 2011
8008840 Drive unit Aug. 30, 2011
8008841 Stator and piezo ultrasonic motor including the same Aug. 30, 2011
8004158 Method and device for cooling ultrasonic transducers Aug. 23, 2011
8002162 Friction-welding device Aug. 23, 2011
7999439 Linear drive ultrasonic motor Aug. 16, 2011

1 2 3 4 5 6










 
 
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