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7608971 |
Brush-holder for a carbon brush
An electric motor, in particular a motor and gear box unit for activating functional equipment in a vehicle, includes a rotor shaft ( 1 ) carrying a commutator ( 2 ) co-operating with conductive...
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7605500 |
Miniature generator
A miniature generator includes a carrier having a tubular shaft on the inside, a substantially C-shaped permanent magnet mounted on the tubular shaft inside the carrier, a match mounted on the...
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7582992 |
Electrical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same
Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion...
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7579731 |
Miniature brushless motor structure
Disclosed herein is a reliable inner rotor type miniature brushless motor structure wherein, while a field coil is fixedly disposed onto the inner wall of a housing, an end flange is fixedly...
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7548009 |
Miniature motor
A miniature motor includes an actuator and a transmission assembly. The actuator includes a chamber, an electrically conductive aqueous layer, a dielectric oily layer and two electrodes. The...
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7541709 |
Ultra-thin motor structure
An ultra-thin motor structure including a stator assembly and a rotator assembly is provided. The stator assembly includes at least one bearing with a bore, a base, and a winding plate. The base...
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7535141 |
Motor with thrust bearing holder
A motor includes a stator having a stator core, a rotor, a case, and a bearing. The motor may further include a bearing hold member provided with a through hole into which the bearing is inserted...
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7532376 |
Forming an actuating mechanism for a micro-scanning device
Forming an actuating mechanism for a micro-scanning device includes forming a scanner chip having a scan table mounting cavity, first and second coil mounting cavities and first and second pivoting...
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7518283 |
Nanometer-scale electrostatic and electromagnetic motors and generators
It is an object of the present invention to provide NEMS that utilize electrostatic and electromagnetic forces to operate. In one nanoelectrostatic embodiment, a nanometer-scale beam is suspended...
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7511391 |
Electromagnetic actuator
An electromagnetic actuator has a rotor and a stator around which coils are wound to face portions of an outer surface of the rotor. The stator is C-shaped, the rotor is arranged so that a rotation...
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7480981 |
Method of producing hard disk drives of reduced size
A method of producing hard disk drives of reduced size including using a one or more MEMS spindle motors, and one or more magnetic heads. Each spindle motor includes a rotor and a stator. The rotor...
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7463454 |
Micro-actuator for hard drive utilizing insulating portions to separate biasing regions from adjacent regions of the micro-actuator and simplified manufacture process therefore
A micro-electro-mechanical device formed by a body of semiconductor material having a thickness and defining a mobile part and a fixed part. The mobile part is formed by a mobile platform,...
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7447119 |
Drive module comprising an MEMS micromotor, process for the production of this module and timepiece fitted with this module
The invention proposes a drive module intended to engage with a clock wheel having a plate made of crystalline or amorphous material comprising a lower layer, which forms a substrate, and an upper...
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7440155 |
Mass-balanced actuating mechanism for a micro scanning device
An actuating mechanism includes a scanner chip having a scan table mounting cavity, and a bracket moveably positioned in the scan table mounting cavity. A scan table is moveably positioned in the...
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7427817 |
Small-sized motor having polygonal outer shape
A small-sized motor having a polygonal outer shape includes four or more field magnets attached to the inner surface of a motor casing made of metal. A tubular portion of the motor casing is formed...
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7411322 |
Micromachined reluctance motor
A reluctance motor having a movable part that does not need a fixed mounting shaft in the motor's stationary part. In one embodiment, a motor of the invention has a stationary part that defines a...
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7385320 |
Step motor
A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third...
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7304408 |
Driving apparatus and light amount adjustment apparatus
A driving apparatus includes a magnet that is magnetized to at least two poles in a circumferential direction and fixed to a rotor axis formed with a soft magnetic material, and first and second...
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7239054 |
Method of forming a micro-rotating device, and a micro-rotating device produced by the method
A micro-rotating device has a rotor 200 (of diameter not more than 1.5 cm), a shaft 202 threaded through the rotor 200 , and a shaft holder 207 for holding the shaft. The shaft holders are...
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7199498 |
Electrical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same
Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion...
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7196450 |
Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of same
Electromechanical systems utilizing suspended conducting nanometer-scale beams are provided and may be used in applications, such as, motors, generators, pumps, fans, compressors, propulsion...
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7188401 |
Motor case
In a motor case 1 , recesses 8 are formed in inner surfaces of upper and bottom surface portions 2 and 3 (which are spaced from each other by a distance smaller than the distance between...
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7173355 |
Bar-type vibration motor
A bar-type vibration motor has a stator unit including a body and a magnet attached in the body; a rotor unit including a rotary shaft having one end fixed to an eccentric weight and the other end...
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7091647 |
Micromechanical device having braking mechanism
The present invention provides a brakeable microapparatus comprising a substrate and a structure overlying the substrate and movable relative to the substrate. A frictional brake overlies the...
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7088028 |
Ring cap for use on commutator in miniature electric motor for absorbing electrical noise/sound
A rotor assembly for an electric motor, including: a rotor shaft, an armature, wire windings and a commutator, wherein the rotor assembly further includes a ring cap directly connected with the...
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7088022 |
Axial air-gap vibration motor
A vibration motor has an eccentric rotor having a plurality of armature coils with at least one winding-type air core armature coil disposed in an eccentric manner on a printed wiring board. A...
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7088019 |
Air bearing for MEMS based motor
A MEMS (micro-electromechanical system) device having a rotor 44 , a stator 43 and a shaft 27 connected to the stator 43 and around which the rotor 44 rotates. Grooves 47 are formed in a...
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7055975 |
Microelectromechanical system with non-collinear force compensation
A microelectromechanical system is disclosed that constrains the direction of a force acting on a first load, where the force originates from the interaction of the first load and a second load. In...
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7053514 |
Image apparatus and drive motor
A drive motor is proposed, which serves as a drive source for a movement mechanism constituting an iris for an optical path of an imaging system. The drive motor has a shaft serving as a center of...
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7023114 |
Vibration motor and its board mounting structure
A vibration motor comprised of a motor body, a motor shaft projecting from the motor body, an eccentric weight attached to the motor shaft, and a mounting frame for setting the motor body on one...
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7019425 |
Device for noise suppressing of small electric motors
The invention is related to a device for the noise suppression of small electric motors with a C x capacitor to be installed between two connections (A 1 , A 2 ) of the small electric motor as...
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6975058 |
Commutator arrangement for a small electric motor
A commutator arrangement for a small electric motor with a capacitor ring disk having several capacitor elements, wherein the capacitor ring disk is made of a dielectric first ring disk (RS) on...
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6973365 |
System and method for handling microcomponent parts for performing assembly of micro-devices
A system and method are disclosed in which a substrate includes a plurality of functional sites, wherein each site comprises a micro-device for handling microcomponent parts. For instance, in a...
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6969142 |
Method of detecting a fault condition in a micro-electromechanical device
A method of detecting a fault condition in a micro-electromechanical device includes the step of applying at least one current pulse to an actuator of the device such that the actuator is...
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6965178 |
Motor
A yoke is substantially cylindrical and has an opening portion. A brush holder member is secured to the opening portion of the yoke. The brush holder member retains a pair of supply brushes. A...
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6960849 |
Three-dimensional microelectromechanical tilting platform operated by gear-driven racks
A microelectromechanical (MEM) tiltable-platform apparatus is disclosed which utilizes a light-reflective platform (i.e. a micromirror) which is supported above a substrate by flexures which can be...
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6925224 |
Polysilicon optical router having rotor
An optical router comprises a substantially planar substrate, a stator fixed to and projecting from an upper surface of the substrate, and a rotor surrounding the stator so as to be rotatable about...
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6910294 |
Intra-fishing lure animator apparatus
In a first embodiment of the invention, an intra-fishing lure animator, comprising: a vibrator; an electrical power source electrically connected to the vibrator for providing electric power to the...
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6903469 |
Stepping motor
A stepping motor includes a stator and a permanent-magnet rotor having a rotor axis. The stator is a stator blade made of soft magnetic materials whose center position is a rotor hole accommodating...
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6897579 |
Motor
A motor includes a magnet formed into a hollow disc shape and having at least one flat surface circumferentially divided and alternately magnetized to opposite poles, a first coil having an inner...
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6870296 |
Electric motor
A miniature PMDC motor has a wound rotor 15 comprising a rotor core 16 and a commutator 17 mounted on a shaft 14 . A cooling fan 20 is directly mounted onto the commutator 17 by use of a...
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6859120 |
Optical switch using risley prisms
An optical switch using Risley prisms and rotary microactuators to independently rotate the wedge prisms of each Risley prism pair is disclosed. The optical switch comprises an array of input...
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6841905 |
Low-profile, coreless motor
Motors are made thinner than conventional by adding a contrivance to a bracket. A housing composed of a case and a bracket is provided and an eccentric rotor and ring magnet are in the housing. A...
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6836034 |
Non-biasing guiding mechanism
The non-biasing guiding mechanism related to CD-R drives is used to drive a data access device to move along a particular direction and to access the data on a CD. The shaft of the non-biasing...
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6831380 |
Low inertia latching microactuator
A surface micromachined micromagnetic actuator is described, wherein rotary actuation is accomplished by a member pivotably mounted on the surface of the substrate. Angular motion of the member...
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6825587 |
Rotor motor with a resin coil bobbin
The present invention provides a motor having an urging member for urging a rotor disposed oppositely to a stator in the axial direction, in which the rotor is rotated in a state under an urging...
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6809436 |
Microactuator having a ferromagnetic substrate
An electromagnetic microactuator having a ferromagnetic substrate, preferably steel. A plurality of layers are deposited upon the substrate including an insulating layer, a seed layer and first and...
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6803685 |
Encoder apparatus integrated with a small-size motor
The present invention provides a mechanical encoder device for use in a miniature motor, which encoder can provide, for each revolution of the motor, a plurality of pulses whose duty ratio does not...
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6798100 |
Motor and attachment structure
A motor with a plurality of electrode terminals, wherein at least a portion of a case for the motor forms at least one of the plurality of electrode terminals.
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6794789 |
Miniature motor
The micromotor serves to drive an impeller ( 12 ) rotating in a pump housing ( 14 ). The excitation winding of the micromotor is surrounded by an enveloping flux return structure ( 18 ) of...
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