| |
 |
|
Class Information
Number: 310/316.02
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Electrical systems > Input circuit for simultaneous electrical and mechanical output from piezoelectric element > Traveling wave motor
Description: Subject matter wherein two or more groups or piezoelectric elements lying along a driving surface expand and contract in repetitive cycles generating a mechanical output having a crest or high point which appears to move along the surface of the piezoelectric elements along a direction of travel (typically rotary or linearly) whereby a driven surface pressed resiently against the driving surface is carried along the direction of the crest or high point.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7382080 |
Piezoelectric ultrasonic motor driver |
Jun. 3, 2008 |
| 7375455 |
Ultrasonic motor driving device and ultrasonic diagnosis apparatus |
May. 20, 2008 |
| 7365474 |
Driving system for vibrating type actuator and method of driving vibrating type actuator |
Apr. 29, 2008 |
| 7352108 |
Piezoelectric driving device and a regulation method for a piezoelectric driving device |
Apr. 1, 2008 |
| 7298066 |
Drive apparatus for piezoelectric actuator, drive method for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium |
Nov. 20, 2007 |
| 7247970 |
Drive method for piezoelectric actuator, drive apparatus for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium |
Jul. 24, 2007 |
| 7161277 |
Driving device |
Jan. 9, 2007 |
| 7154208 |
Control apparatus for vibration type actuator |
Dec. 26, 2006 |
| 7129618 |
Control apparatus capable of low-speed driving of vibration type driving apparatus, actuating apparatus using the control apparatus, control method capable of low-speed driving of vibration ty |
Oct. 31, 2006 |
| 7119475 |
Driving method of piezoelectric actuator, driving apparatus of piezoelectric actuator, electronic watch, electronics, control program of piezoelectric actuator, and storage medium |
Oct. 10, 2006 |
| 7085484 |
Driving device, position controller provided with driving device, and camera provided with position controller |
Aug. 1, 2006 |
| 7061156 |
Control apparatus for vibration type actuator |
Jun. 13, 2006 |
| 7005776 |
Ultrasonic motor and electronic apparatus equipped with ultrasonic motor |
Feb. 28, 2006 |
| 6967429 |
Power output stage for capacitive loads |
Nov. 22, 2005 |
| 6965188 |
Ultrasonic-actuator driving apparatus and ultrasonic-actuator driving method |
Nov. 15, 2005 |
| 6885132 |
Control apparatus for vibration type actuator, vibration type actuator system, and method for controlling vibration type actuator |
Apr. 26, 2005 |
| 6841919 |
Piezoactuator and drive circuit therefor |
Jan. 11, 2005 |
| 6815871 |
Drive mechanism and drive method employing circuit for generating saw-tooth waveform voltage |
Nov. 9, 2004 |
| 6803699 |
Drive mechanism employing electromechanical transducer and drive method therefor |
Oct. 12, 2004 |
| 6727635 |
Driving device |
Apr. 27, 2004 |
| 6717329 |
Drive mechanism employing electromechanical transducer and method for controlling the drive mechanism |
Apr. 6, 2004 |
| 6692164 |
Apparatus for cleaning a substrate on which a resist pattern is formed |
Feb. 17, 2004 |
| 6661154 |
Driving apparatus and method using electromechanical conversion elements |
Dec. 9, 2003 |
| 6657361 |
Piezoelectric drive device |
Dec. 2, 2003 |
| 6617754 |
Circuit for the dynamic control of ceramic solid-state actuators |
Sep. 9, 2003 |
| 6586860 |
Ultrasonic motor and electronic device with ultrasonic motor |
Jul. 1, 2003 |
| 6512321 |
Driving apparatus and method of using same |
Jan. 28, 2003 |
| 6437480 |
Apparatus and method for driving an ultrasonic motor to reduce rise response time |
Aug. 20, 2002 |
| 6417598 |
Power circuit for piezo-electric motor |
Jul. 9, 2002 |
| 6400063 |
Ultrasonic motor and electronic apparatus having an ultrasonic motor |
Jun. 4, 2002 |
| 6388362 |
Ultrasonic motor and electronic apparatus having ultrasonic motor |
May. 14, 2002 |
| 6384550 |
Speaker and drive device therefor |
May. 7, 2002 |
| 6366003 |
Ultrasonic motor and electronic apparatus with ultrasonic motor |
Apr. 2, 2002 |
| 6320298 |
Actuator driving circuit, an actuator driving device, and an actuator driving method |
Nov. 20, 2001 |
| 6316862 |
Motor drive apparatus having power supply restoring function |
Nov. 13, 2001 |
| 6285145 |
Drive control method for vibration wave motor, device therefor, and apparatus and image forming apparatus equipped with vibration wave motor |
Sep. 4, 2001 |
| 6278220 |
Ultrasonic motor drive apparatus having surge and oscillation suppressing member |
Aug. 21, 2001 |
| 6274963 |
Methods and devices for controlling the vibration of ultrasonic transmission components |
Aug. 14, 2001 |
| 6246151 |
Drive device and apparatus incorporating the device |
Jun. 12, 2001 |
| 6229245 |
Control apparatus for vibration wave motor |
May. 8, 2001 |
| 6215223 |
Driving circuit of a motor |
Apr. 10, 2001 |
| 6215224 |
Control device for vibration type actuator |
Apr. 10, 2001 |
| 6177753 |
Vibration wave motor |
Jan. 23, 2001 |
| 6177756 |
Piezoelectric gyro and method of driving the piezoelectric gyro |
Jan. 23, 2001 |
| 6161432 |
Vibrator and vibratory gyroscope using the same |
Dec. 19, 2000 |
| 6144140 |
Ultrasonic motor and electronic device fitted with ultrasonic motor |
Nov. 7, 2000 |
| 6133671 |
Vibration type motor device |
Oct. 17, 2000 |
| 6121714 |
Vibration type motor device |
Sep. 19, 2000 |
| 6084363 |
Drive pulse generating apparatus for drive device using electromechanical transducer |
Jul. 4, 2000 |
| 6084335 |
Vibration driven actuator apparatus and vibration control method therefor |
Jul. 4, 2000 |
|
|
|
