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8183720 |
Magnetic circuit system
A magnetic circuit system includes a T-shaped yoke, a magnet, and a top plate. The top plate has a center hole, an internal end around the center hole thereof, and two projecting elements provided...
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8183721 |
Oscillation drive device
An oscillation drive device includes an oscillating unit that includes attaching portions on either sides thereof, the attaching portions being arranged on an oscillation axis; a base that includes...
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8164224 |
Vibration motor
A vibration motor comprises a permanent magnet supported by a spring and an electromagnet. The electromagnet generates an alternating second magnetic field which exerts a torque on the permanent...
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8148856 |
Stand-alone device for generating electrical energy
The present invention relates to a stand-alone device for generating electrical energy comprising:—an excitation coil (2) furnished with a central opening, —a magnetic circuit passing through the...
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8143817 |
Electromagnetic actuator driving method
An electromagnetic actuator includes a stator and a movable body. The stator includes a core provided with magnetic poles and a coil wound on at least one of the magnetic poles. The movable body...
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8138639 |
Linear vibrator
Disclosed herein is a linear vibrator. The linear vibrator includes a casing defining an internal space. A vibratory unit is accommodated in the casing to vibrate up and down. A spring is mounted...
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8129870 |
Asymmetric folded spring flexure suspension system for reciprocating devices
An asymmetric folded spring flexure suspension system can enable an ultra-compact linear reciprocative device wherein a reciprocative mass suspended from a base by a single folded flexure assembly...
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8120214 |
Linear vibrator with improved damping function
The present invention provides a linear vibrator comprising a weight having an auxiliary magnet which is provided in a lower end of the weight and generates magnetic force with respect to the...
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8053914 |
Method and apparatus for energy harvesting using microfluidics
An apparatus comprising a mechanical-to-electrical energy converting device having a plurality of electrodes and a fluidic body which comprises spatially separated conductive and dielectric liquid...
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8004124 |
Vibration generation module capable of generating inertial and impact vibrations
Disclosed herein is a vibration generation module capable of generating inertial and impact vibrations. The vibration generation module includes a magnetic force generation unit, an elastic force...
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7994672 |
Limited angle external rotor motor actuator system
The actuator system has a external rotor motor having: (i) an internal armature configured as a stator having a set of coils wrapped around a set of arms, and (ii) an external permanent magnet...
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7990597 |
Actuator, optical scanner, and image forming device
An actuator includes: a first oscillatory system including a frame-shaped driving member and a pair of first axial members holding the driving member from both ends so as to allow the driving...
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7989995 |
Cap and seal for windshield wiper drive for vehicles
A windshield wiper drive (1) is provided for the output shaft (4) with a protective cap (15) across a longitudinal region. The protective cap (15) is supported between the terminal supports thereof...
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7965000 |
Vibratory linear actuator
A vibratory linear actuator includes a stator with a magnetic pole surface, a movable member with a magnetic pole surface, an electromagnet arranged in one of the stator and the movable member, a...
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7965001 |
Drive control device for oscillator, drive control method for ocillator, and manufacturing method for oscillator
To drive an oscillator always at a stable and constant oscillation even if frequency and amplitude of a power supply voltage differ depending on a delivery destination of the oscillator, an...
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7960875 |
Vibration generator
There is provided a small-sized vibration generator that resonates at two different frequencies. A movable base is housed inside a case. The movable base has an installation plate, and supporting...
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7960877 |
Electric reciprocating motion device with spring motor
An electric reciprocating motion device includes a motor having a rotary shaft for outputting a reciprocating rotational power and a motion head coupling with the rotary shaft and being driven to...
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7948198 |
Reaction force cancel system
Increasing in size of a reaction force cancel system is suppressed. The reaction force cancel system is provided in a stage device including: a surface plate having a plurality of plate surfaces...
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7948124 |
Electro-magnetic kinetic energy harvesting device using increased magnetic edge area
An energy harvesting apparatus comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil...
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7919876 |
Small-sized power package
A small-sized power package includes a tubular case, a magnet tube, a coil, a power-generating magnet, a shaft, a movable box, and a positioning magnet. The power-generating magnet is attracted by...
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7919889 |
Oscillator device, optical deflector and optical instrument using the same
An oscillator device includes an oscillator, a resilient support member configured to support the oscillator for oscillatory motion about an oscillation central axis, a magnetic member provided on...
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7911160 |
Oscillation device, optical deflection apparatus, and drive-signal generating method
An oscillation device capable of generating a drive signal waveform with a sufficiently small number of harmonic components is provided. The oscillation device includes an oscillation system, a...
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7911097 |
Vibration motor having a case comprising an upper plate and a lower plate
Provided is a vibration motor including a supporting shaft, a rotor rotatably coupled to the supporting shaft, a stator facing the rotor, and a case having a lower plate where the supporting shaft...
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7902698 |
Method of fabricating a micro-electro-mechanical apparatus for generating power responsive to mechanical vibration
A method for fabricating a monolithic micro-generator comprising: fabricating a plurality of magnet layer elements by preparing a semiconductor substrate surface to define: a plurality of coil...
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7898096 |
Method and apparatus for energy harvesting using microfluidics
An apparatus comprising a mechanical-to-electrical energy converting device having a plurality of electrodes and a fluidic body which comprises spatially separated conductive and dielectric liquid...
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7898122 |
Quick-action bistable polarized electromagnetic actuator
The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet,...
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7894113 |
Actuator, optical scanner, and image forming device
An actuator includes: a first oscillatory system including a frame-shaped driving member and a pair of first axial members holding the driving member from both ends so as to allow the driving...
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7884518 |
Electrical synchronous machine
An electrical synchronous machine, in particular for use as a drive machine in motor vehicle applications. A stator has an electrical winding arrangement for generating a rotating field. A rotor...
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7884525 |
Carbon nanotube based compliant mechanism
A nano-scale compliant mechanism includes a coupler and a plurality of nanotubes disposed for nano-scale motion relative to a grounded component. The nanotubes are fastened at one end to the...
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7876003 |
Resonant actuator for a personal care appliance having a programmable actuation capability
The drive system for a personal care appliance, such as a toothbrush, includes a first opposing pair of permanent magnet assemblies positioned longitudinally along the length of the internal...
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7872380 |
Apparatus and method for generating rotary oscillations
An apparatus and method for generating rotary oscillation with two shafts pivotable relative to each other. An end section of a first shaft is accommodated in an end section of a second shaft so as...
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7857526 |
Electromagnetic actuator
An electromagnetic actuator is provided, including a bobbin made of a non-magnetic material including a hollow cylindrical portion and disk flanges; a coil formed between the disk flanges; a power...
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7839041 |
Rotary actuators
Embodiments of actuators (20) comprise an electromagnetically conductive housing (22); a rotor (24); a first stationary pole member (48); a second stationary pole member (42); a first permanent...
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7839028 |
Nanoelectromechanical systems and methods for making the same
Nanoelectromechanical systems are disclosed that utilize vertically grown or placed nanometer-scale beams. The beams may be configured and arranged for use in a variety of applications, such as...
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7817318 |
Oscillating system and optical deflector
Disclosed is an oscillating system arranged so that a gravity center of a movable member and a torsional axis of a resilient support are easily registered with each other to prevent deformation of...
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7812483 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Vibratory linear actuator
A vibratory linear actuator includes a stator with a magnetic pole surface, a movable member with a magnetic pole surface, an electromagnet arranged in one of the stator and the movable member, a...
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7800276 |
Rotor assembly
Devices and methods are provided for a rotor assembly and an electric motor. One embodiment for a rotor assembly includes a first rotor including a first interface surface and a second rotor...
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7795043 |
Method of manufacturing oscillator device
A method of manufacturing oscillator devices each having an oscillator and a resilient supporting member for supporting the oscillator for oscillatory motion, includes a step of processing one and...
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7786626 |
Oscillating motor for a personal care appliance
The motor includes an E-core stator assembly with a source of alternating current and an armature portion mounted to be responsive to the stator to oscillate back and forth through an arc portion...
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7755227 |
Vibration generator
A vibration generator is provided. The vibration generator comprising a case having a hollow inside and a lower plate. A first vibrator is disposed away from the lower plate of the case and...
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7732952 |
Oscillatory motors and devices incorporating them
An oscillatory device incorporating a limited angle torque motor capable of oscillating one or more end effector(s) is provided. The device may additionally incorporate an ultrasound transducer...
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7724411 |
2-axis driving electromagnetic scanner
A 2-axis driving electromagnetic scanner, having a structure in which a mirror is separated from a driving unit and directly driven, is provided. The electromagnetic scanner includes: an outer...
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7719145 |
Enhanced internal electrical generators
Enhanced internal electrical generators are provided which include pole pieces that form air gaps flanked with conductive wire coils. Rotatable armatures supporting permanent magnets are arranged...
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7695255 |
Peristaltic pump
A pump for generating fluid flow in an elastic tubular conduit. The pump comprises a plurality of electrically operated valves, each valve being positionable adjacent to the conduit. Each valve has...
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7692559 |
Self-powered switch initiation system
A self-powered switching system using electromechanical generators generates power for activation of a latching relay. The electromechanical generators comprise electroactive elements or magnetic...
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7692340 |
Apparatus for generating power responsive to mechanical vibration
A vibrational energy harvesting apparatus comprising: a substrate having a plurality of integral compliant regions; at least two ferromagnetic masses each coupled to a corresponding one or more of...
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7687943 |
Electricity generating wheel system
An system and apparatus for capturing electricity comprised of: a wheel and a fixed conducting rod, both in electrical contact with the wheel and at least one electrical component or system in...
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7687944 |
Actuation system for personal care appliance using linear actuators
The personal care appliance drive system includes a pair of linear actuators capable of operating both in an opposing phase mode or in a parallel (in-phase) mode. The system includes a motion...
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7679229 |
Relieving stress in a flexure
A flexure includes a shaped sheet of material having a middle portion coupled to a magnet, an end portion, and a corner portion between the end portion and the middle portion, the corner portion...
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7675203 |
Electric drive unit for generating an oscillating displacement
An electric drive unit for generating an oscillating movement, having a stator, a rotor, a torsion element and a tuning element. The tuning element acts upon the torsion element and serves to...
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