Sign up


Match Document Document Title
8912704 Sectionalized electromechanical machines having low torque ripple and low cogging torque characteristics  
A method and apparatus for reducing or eliminating the effects of torque ripple and cogging torque and otherwise improving performance in an electromechanical machine such as a motor or generator....
8910720 Downhole tool with roller screw assembly  
A downhole tool for positioning in a wellbore comprises a tool main body, an electric motor disposed within the tool main body, the motor comprising a rotor rotatably attached to a stator, and a...
8912695 Induction motor auxiliary cooling system  
A totally enclosed fan cooled (TEFC) induction motor or other type of induction motor auxiliary cooling system has a buffet thermal shroud that is oriented in opposed spaced relationship over...
8912706 Oscillatory wave motor capable of decreasing degradation of performance  
An oscillatory wave motor includes an oscillator having an oscillation body and an electro-mechanical energy-converting element, and a flexible heat-conducting member configured to dissipate heat...
8911221 Leaf blower  
A blower assembly for a leaf blower has a case, a motor, an impeller driven by the motor, and an axial fan driven by the motor. The axial fan and the impeller are connected to opposite ends of the...
8910355 Method of manufacturing a film bulk acoustic resonator with a loading element  
Manufacturing a semiconductor structure including modifying a frequency of a Film Bulk Acoustic Resonator (FBAR) device though a vent hole of a sealing layer surrounding the FBAR device.
8912697 Vacuum actuator including a stator forming a part of a vacuum partition wall  
A vacuum actuator includes a vacuum partition wall, the interior of which can be evacuated to a vacuum, a rotor supported by the vacuum partition wall to be free to rotate, a permanent magnet...
8910356 Method of attaching an electronic device to an MLCC having a curved surface  
A method of forming an electrical component is provided. The method comprises preparing a subassembly by electrically connecting an integrated circuit to a flexible circuit; and attaching the...
8912691 Rotating electrical machine cooling system  
A rotating electrical machine cooling system includes a cooling structure for a rotating electrical machine that is mounted on a hybrid vehicle, and a controller. The cooling structure includes a...
8914179 Power transmission device  
During an inertial energy storage operation, electric power conversion at an inverter is controlled such that a direct current electric power from an electric power storage device is converted into...
8912705 Method and apparatus for insulating induction machine coil connectors  
Method and apparatus for insulating induction machine conductive connectors by sliding a closed-end insulating sheath over the connector. The sheath is circumferentially secured to the conductive...
8912694 Rotating electrical machine  
A rotating electrical machine according to an embodiment includes a rotor rotatable around a rotation axis, a stator arranged to face the rotor, and a frame which accommodates the rotor and the...
8910718 System and method for a combined submersible motor and protector  
A system and method is provided for producing a hydrocarbon fluid from a subterranean environment. The system and method utilize an electric submersible pumping system having a motive unit...
8910371 Method for fabricating an induction rotor  
A rotor for an induction motor includes a rotor core having first and second ends and a plurality of conductor bars. Each conductor bar has a respective first end extending beyond the first end of...
8912700 Rotor for reluctance motor  
A rotor described herein includes a plurality of flux barriers that include at least one magnetic path formed between a plurality of slits. The flux barriers are arranged in a circumferential...
8912702 Process and mold for producing ferromagnetic cores of electric motors  
A process and a blanking mold are described for the production of a ferromagnetic core for electric motors formed by a plurality of segments. The laminations are blanked from a sheet of...
8913343 Rotating device using a fluid dynamic bearing with magnet and suction plate  
A disk drive device comprises: a hub; a base rotatably supporting the hub via a bearing; a core fixed to the base; a cylindrical magnet fixed to the hub; and a suction plate fixed to the base, the...
8912696 Motor, electric equipment, and method of manufacturing motor for reducing electric corosion of bearings  
In a motor driven by a drive circuit such as an inverter, there is a problem that electric current flowing through a bearing causes electric corrosion, which impairs the durability of the bearing....
8912699 DC field gradient motor  
A field gradient motor with a stator housing and first and second stator disks fixed to the stator housing for turning B-field flux lines 90 degrees toward a motor air gap of the field gradient...
8910727 Ultrasonic/sonic jackhammer  
The invention provides a novel jackhammer that utilizes ultrasonic and/or sonic vibrations as source of power. It is easy to operate and does not require extensive training, requiring substantially...
8912701 Induction motor, compressor and refrigerating cycle apparatus  
The efficiency of an induction motor is improved while suppressing the generation of magnetic flux saturation of a rotor core. In an induction motor, “a magnetic path width of a rotor” which is the...
8912711 Thermal stress resistant resonator, and a method for fabricating same  
In an embodiment, a thermal stress resistant resonator is disclosed. The thermal stress resistant resonator may include or comprise a piezoelectric member having one or more non-linear...
8913027 Systems and methods for providing haptic feedback at multiple resonance frequencies  
Systems and methods for providing haptic feedback at multiple resonance frequencies are disclosed. For example, one disclosed apparatus includes a resonator with a base and a plurality of...
8910370 Method of making a universal bubble detector  
A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing....
8912709 Flexi-PCB mounting of ultrasonic transducers for enhanced dermal and transdermal applications  
An ultrasound transducer patch (100) comprises an array of ultrasound transducers (20) mounted to a flexi-PCB (10) containing multiple tracks (12). Each transducer (20), or a sub-group of the...
8912698 Motor assembly with integrated cooling means and enclosed compartment for electronic circuitry  
A motor assembly includes a structural unit for mounting a motor, for mounting and enclosing electronic circuitry, and for providing a corridor for air to flow and cool the motor and/or the...
8912710 Energy harvesting from input impulse with motion doubling mechanism for generating power from mortar tube firing impulses and other inputs  
A method for harvesting energy from an input deflection. The method including: storing mechanical potential energy in at least one spring element resulting from an acceleration of a mass connected...
8912708 Electromechanical motor  
An electromechanical motor includes an actuator assembly and a body to be driven in a driving direction. The actuator assembly has an actuator backing, a first actuator and a second actuator. The...
8912693 Broadband linear vibrator and mobile terminal  
A broadband linear vibrator that is small sized and yet capable of generating a greater vibrating force and outputting various broadband vibrations, and a mobile terminal capable of outputting...
8912680 Wind power turbine rotary electric machine  
A rotary electric machine for a wind power turbine for generating electric power has a tubular stator having a plurality of stator segments; a tubular rotor which has a plurality of rotor segments,...
8912692 Magnetic vibrator with inclined pole pieces  
A magnetic vibrator including a first magnetic portion and a second magnetic portion is disclosed. The first magnetic portion includes an inner plate, a first magnet and a second magnet. The inner...
8912703 Stator core and spindle motor including the same  
There is provided a stator core formed by stacking a plurality of single core sheets, each including a coreback having a central hole formed therein, a plurality of tooth parts extended from the...
8912690 Voice coil motor  
Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block...
8912707 Friction-driven actuator  
An apparatus for actuating a positioning device includes a housing; a piezoelectric element connected to the housing; a driven element configured to move relative to the housing; and a flexible...
8907544 Ultrasonic transducer  
An ultrasonic transducer includes an ultrasonic transmitting and receiving portion, a housing, a driving device, a casing, a first volume compensation mechanism, a ventilating portion, a diaphragm,...
8909145 Wireless telemetry auto for torque measurement system  
A torque measurement system that includes a rotor device and a stator device can perform automatic tuning to improve the initial tuning performed during design and assembly. The stator device can...
8907534 Generator motor cooling structure and generator motor  
A generator motor cooling structure for cooling a generator motor, which includes a housing storing an input/output shaft to which a rotor is attached and a stator disposed at an outer periphery...
8907733 Oscillator  
A second piezoelectric vibrator (30) is located in a hollow portion (21) of the first piezoelectric vibrator (20) when seen in a plan view. A support (40) is a frame-shaped member, and the inside...
8905727 Isolated pressure compensating electric motor connection and related methods  
Isolated pressure compensating electrical motor connections and related methods are provided. According to an example of a sealed motor electrical connection, the connection incorporates a sealed...
8908320 Spindle motor having lower thrust member with fitting protrusion and hard disk drive including the same  
There are provided a spindle motor and a hard disk drive including the same, the spindle motor including: a lower thrust member fixedly attached to a base member; a shaft fixedly attached to the...
8907536 Device for actuating an item of equipment that can be controlled automatically or manually, with detection of take-up of manual control  
An actuator device for actuating equipment has an electric motor arranged to be connected to an autopilot device and connected by a drivetrain to an outlet shaft, itself designed to be connected to...
8907548 Resonator element having a mass portion  
A resonator element includes: a base portion provided on a plane including a first axis and a second axis orthogonal to the first axis; a vibrating arm extending from the base portion in the first...
8907545 Crystal element and crystal device  
A mesa-structure crystal element includes a circumferential portion having a thin thickness, a first convex portion formed on a plane in a center side from the circumferential portion and having a...
8907543 Surface acoustic wave component  
A surface wave component contains at least two interdigital transducers having natural unidirectionality, disposed on a piezoelectric crystal substrate, which form a transducer pair consisting of...
8907539 Retaining ring configuration system  
A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of...
8907538 Motor for driving a container-holder plate in a labelling machine  
A motor for a plate of a labelling machine comprises a housing with a connecting portion for connecting the motor to a carousel of the labelling machine, a motor shaft pivotally supported within...
8908322 Spindle motor having base member with fitting protrusions and hard disk drive including the same  
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a shaft; a sleeve rotatably supporting the shaft by fluid dynamic pressure; a stator core...
8907546 Temperature and field stable relaxor-PT piezoelectric single crystals  
The application is directed to piezoelectric single crystals having shear piezoelectric coefficients with enhanced temperature and/or electric field stability. These piezoelectric single crystal...
8907506 Multimodal vibration harvester combining inductive and magnetostrictive mechanisms  
Multi-Mechanism Energy Harvesters (MMEHs) combining magnetostrictive and inductive mechanisms with a shape and size similar to an AA battery. Included are MMEHs with (a) an inductive mode: a...
8907533 Device for producing electrical energy with oscillating magnet and coil  
A device for generating electrical energy has at least one pair of permanent magnets and at least one coil. They are moved about a pivot axis relative to one another by agitating or shaking. Each...