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Class Information
Number: 318/116
Name: Electricity: motive power systems > Nonmagnetic motor
Description: Subject matter which the electric motor converts electric to mechanical energy by means other than magnetic induction.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7579747 |
Electrostatic actuator |
Aug. 25, 2009 |
| 7550895 |
Method for driving micro-oscillating element having comb-teeth electrodes |
Jun. 23, 2009 |
| 7548011 |
Systems and methods for improved control of micro-electrical-mechanical system (MEMS) electrostatic actuator |
Jun. 16, 2009 |
| 7514840 |
Electrostatic actuator |
Apr. 7, 2009 |
| 7504758 |
Electrostatic actuator and method for driving electrostatic actuator |
Mar. 17, 2009 |
| 7482728 |
Electrostatic actuator including a switching circuit which selectively sets one of a moving mode and first and second holding modes and driving method therefor |
Jan. 27, 2009 |
| 7477026 |
Power steering assembly |
Jan. 13, 2009 |
| 7429838 |
Control of a piezoelectric motor |
Sep. 30, 2008 |
| 7368846 |
Microactuator with displacement sensing function and deformable mirror including the microactuator |
May. 6, 2008 |
| 7332847 |
Electret actuator |
Feb. 19, 2008 |
| 7253550 |
Torsional electrostatic actuator |
Aug. 7, 2007 |
| 7215060 |
Electrostatic actuator, electrostatic actuator driving method, electromechanical transducer, waveform output device and electric element |
May. 8, 2007 |
| 7211924 |
Electrostatic attraction driving apparatus |
May. 1, 2007 |
| 7208857 |
Drive calibration method and system |
Apr. 24, 2007 |
| 7190102 |
Apparatus and method for charging and discharging a capacitor to a predetermined setpoint |
Mar. 13, 2007 |
| 7166951 |
Electrostatic actuator and method of driving the same |
Jan. 23, 2007 |
| 7098745 |
System to control integrated circuit resonance |
Aug. 29, 2006 |
| 7015620 |
Method for supplying multiple voltages to a movable part of a MEMS device |
Mar. 21, 2006 |
| 7004128 |
Control apparatus for device having dead band, and variable valve system |
Feb. 28, 2006 |
| 7002310 |
Piezo-based encoder with magnetic brake for powered window covering |
Feb. 21, 2006 |
| 6979933 |
Apparatus and method for charging and discharging a capacitor |
Dec. 27, 2005 |
| 6967429 |
Power output stage for capacitive loads |
Nov. 22, 2005 |
| 6965188 |
Ultrasonic-actuator driving apparatus and ultrasonic-actuator driving method |
Nov. 15, 2005 |
| 6940207 |
Micromachined moving device controlled by a varying--amplitude AC drive signal |
Sep. 6, 2005 |
| 6911792 |
System and method for controlling movement |
Jun. 28, 2005 |
| 6900576 |
Electrostatic microactuator method of activating the same, and camera module |
May. 31, 2005 |
| 6856067 |
Device and method for electrostatically levitating a disk and method for using an electrostatic levitated disk as a sensor |
Feb. 15, 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 |
| 6806618 |
Electrostatic actuator and camera module using the same |
Oct. 19, 2004 |
| 6806661 |
Electrostatic actuator and method of driving the same |
Oct. 19, 2004 |
| 6794794 |
Torsion oscillator stabilization |
Sep. 21, 2004 |
| 6784594 |
Electrostatic actuator and method of driving the same |
Aug. 31, 2004 |
| 6784630 |
Use of standoffs to protect atomic resolution storage mover for out-of-plan motion |
Aug. 31, 2004 |
| 6781281 |
Electrostatic microactuator having a movable piece between a pair of statical members |
Aug. 24, 2004 |
| 6753664 |
Method for linearization of an actuator via force gradient modification |
Jun. 22, 2004 |
| 6750589 |
Method and circuit for the control of large arrays of electrostatic actuators |
Jun. 15, 2004 |
| 6717325 |
Method and apparatus for actuation of a two-axis MEMS device using three actuation elements |
Apr. 6, 2004 |
| 6717326 |
Electrostatic actuator and camera module using the same |
Apr. 6, 2004 |
| 6670738 |
Electrostatic actuator and method of driving the same |
Dec. 30, 2003 |
| 6593712 |
Drive control device of vibration wave motor |
Jul. 15, 2003 |
| 6583524 |
Micro-mover with balanced dynamics |
Jun. 24, 2003 |
| 6564110 |
Position controlling apparatus capable of reducing the effect of disturbance |
May. 13, 2003 |
| 6525446 |
Electrostatic actuator driving method and mechanism, using rigidity retention as a parameter |
Feb. 25, 2003 |
| 6456508 |
Drive apparatus for vibrating-type compressor |
Sep. 24, 2002 |
| 6397008 |
Driving system with elastically supporting units |
May. 28, 2002 |
| 6384550 |
Speaker and drive device therefor |
May. 7, 2002 |
| 6351054 |
Compounded AC driving signal for increased reliability and lifetime in touch-mode electrostatic actuators |
Feb. 26, 2002 |
| 6342671 |
Optical actuator |
Jan. 29, 2002 |
| 6333609 |
Drive control device of vibration type motor |
Dec. 25, 2001 |
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