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9006943 Electro-dynamic machine with coolant chargeable bladder  
An electro-dynamic machine is provided and includes stator assembly end turns and a coolant chargeable bladder disposable to contact the end turns.
9006958 Piezoelectric device  
A piezoelectric device 100 is provided with an element-mounting member 110, a piezoelectric element 120 mounted on the element-mounting member 110, a metal pattern 118 which is formed at the...
RE45464 Electroactive polymer animated devices  
The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical...
9006945 Rotating electrical machine and rotating apparatus  
This disclosure discloses a rotating electrical machine that is integrally formed with a reduction device having an input shaft and an output shaft and employs one of a field system and an armature...
9005466 Highly insulative and highly stable piezoelectric single LTGA crystal, method for producing the same, piezoelectric element using said single LTGA crystal, and combustion pressure sensor  
In accordance with the present invention, there is provided a method for producing a single LTGA crystal from a polycrystalline starting material prepared from a mixture of La2O3, Ta2O5, Ga2O3, and...
9003639 Method of manufacturing a rotor  
A rotor includes a rotor core fixedly attached to a rotational shaft and having a plurality of hole portions arranged in the circumferential direction, a magnet inserted into a plurality of hole...
9006959 Lead-free piezoelectric ceramic composition, piezoelectric element comprising same, knock sensor, and process for production of lead-free piezoelectric ceramic composition  
A lead-free piezoelectric ceramic composition includes a first crystal phase of alkali niobate/tantalate type perovskite oxide having piezoelectric properties and a second crystal phase of...
9006942 Generator main stator back-iron cooling sleeve  
A main stator sleeve for a generator includes a sheet of material that includes an arcuate notch one two opposed edges such that a butt joint therebetween defines a pin aperture.
9006960 Piezoelectric vibrating piece and piezoelectric device  
A piezoelectric vibrating piece includes a first extraction electrode and a second extraction electrode. The first extraction electrode is extracted from an excitation electrode formed on one...
9006954 Lundell rotary machine  
A rotor includes: a plurality of first magnetic pole members that are disposed such that first end portions and second end portions are respectively coupled magnetically and mechanically to a first...
9003647 Method and apparatus for manufacturing a flat-type wire  
A stator structure includes: a stator core (104) having a large number of concave slots (105) and a large number of convex magnetic poles (106) circumferentially alternately arranged; and magnet...
9003887 Ultrasonic sensor  
An ultrasonic sensor includes a cylindrical case having a bottom and a side wall, a piezoelectric element attached to an inner bottom surface of the case, a terminal retainer configured to hold...
9006950 Synchronous rotary electric machine having a double excitation rotor  
A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed in a circumferential portion of the magnetic...
9006944 Motor with a deformable limiting member  
A motor includes a base, a rotor and a stator. The base includes a shaft tube having an open end and a closed end. A shaft supporting assembly is received in the shaft tube and includes a top...
9006951 Cogging torque reduction device for electrical machines  
Electrical machines, for example transverse flux machines and/or commutated flux machines, may be “balanced” to achieve reduced overall cogging torque via utilization of one or more cogging tor...
9006914 Electromagnetic device for generating electrical current and methods thereof  
An AC current generator for generating an CA current and method therefor and includes a stator and a rotor. The stator includes an outer shell of non-magnetic material enclosing an evacuated...
9006948 Hybrid pole bearingless SRM  
Disclosed is a hybrid pole bearingless switched reluctance motor (BLSRM). The BLSRM includes a stator provided with windings, a rotor rotating about an axis when current is conducted to the...
9006941 Permanent magnet motor having teeth with fingers  
A permanent magnet-type stepping motor broadly includes: a movable member (e.g., a rotor) having a number of magnetic poles on a surface thereof, with adjacent poles being of opposite polarity, the...
9006957 Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit  
A power generation unit includes a deforming member (a beam) adapted to deform while switching a deformation direction, a first piezoelectric device provided to the deforming member (the beam), a...
9006947 Spindle motor  
There is provided a spindle motor including: a base part including a base member and a lower thrust member fixedly installed on the base member; a shaft having a lower end portion fixedly installed...
9006952 Coil bobbin for brushless alternator  
A coil bobbin for a brushless alternator includes an integrally formed one piece bobbin body that has a first end, a second end and a central passage that extends from the first end to the second...
9006949 Synchronous motor  
A double-stator synchronous motor has a rotor, an inner stator and an outer stator. The rotor has segment-magnetic poles arranged in a ring shape. Magnetic poles formed in the inner stator and the...
9006961 Endshield  
The invention relates to a bearing shield (5) for an electrical motor having a rotor and a stator, wherein the bearing shield (5) has a receptacle (25) for a bearing (400) for bearing a shaft of...
9006946 Motor structure and flat type vibration motor structure using the same  
Disclosed herein is a motor structure with reduced rotation resistance of a bearing. The motor structure according to the preferred embodiment of the present invention includes: a fixing body, a...
9006953 Stator assembly structure for axial flux electric machine  
A stator assembly structure for an axial flux electric machine is designed. The back iron for each silicon steel disk stator is formed into a specific structure with tooth-like protrusions for...
9006955 High-energy beta-particle source for betavoltaic power converter  
A power converter comprises a nuclear radiation emitter having a first side and a second side, wherein the nuclear radiation emitter comprises a radiation-emitting radioisotope, a plurality of...
9006956 Piezoelectric active cooling device  
Methods, systems, and devices for providing cooling for a mobile device using piezoelectric active cooling devices. Some embodiments utilize piezoelectric actuators that oscillate a planar element...
8997332 Method of forming a power tool  
A method for forming an armature for an electric motor includes: securing a lamination stack having slots therein on an armature shaft, securing a commutator on one end of the armature shaft,...
9000629 Stator segment and motor  
A stator segment arranged to define a portion of an annular stator includes a core segment including a core back portion arranged to extend in a circumferential direction of the stator, and a tooth...
9000630 Motor including heat radiating resin  
Provided is a motor including a rotor, a stator having a stator core and a coil, a stator frame, an end cover, first and second bearings, and a heat radiating resin in the stator frame. The coil...
9000638 AC generator  
Provided is a vehicle AC generator which enables the common use of components and the use of the same molding die for molded bodies to enable a significant reduction in fabrication cost. The...
9000652 Thermionic generator  
A thermionic generator for converting thermal energy to electric energy includes: an emitter electrode for emitting thermal electrons from a thermal electron emitting surface when heat is applied...
9000634 Motor with speed reduction mechanism  
In a brush holder accommodating part 26d of a gear housing 26, paired flat surface parts 26c and paired curved parts 26b are alternately disposed so as to be formed into an elliptical shape, one of...
9000633 Drive apparatus having a motor, a heat sink, and a plurality of semiconductor modules  
A heat sink has two heat radiation blocks. The heat radiation block is formed in a wide column shape. The heat radiation block has connection parts at both ends. The connection parts have...
9000644 Concentric motor power generation and drive system  
An apparatus is provided and includes a hub, including opposing faces, a first sidewall fixed to the opposing faces to define a first interior and a second sidewall fixed to one of the opposing...
9001626 Piezoelectric acceleration timer  
A timer for measuring a time lapsed during an acceleration is disclosed. The timer may include a piezoelectric sensor, an energy storage device and a measurement module. The piezoelectric sensor...
8998390 Piezoelectric film, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelectric generating element  
Provided is an NBT-BT lead-free piezoelectric film having a high crystalline orientation and a high piezoelectric constant. The present invention is a piezoelectric film comprising a NaxM1-x layer...
9000653 Ultrasound transducer arrays  
A transducer array of micromachined ultrasonic transducer elements is connected to a microbeamformer. Driver circuits of the microbeamformer have a first output coupled to a first electrode of a...
9000626 Thrust generation mechanism, drive device, XY stage and XYZ stage  
A thrust generation mechanism includes magnetic pole teeth which are arranged so as to sandwich and hold permanent magnets disposed on movers, cores which serially connect the magnetic pole teeth...
9000627 Linear motor with back yoke  
Provided herein is a linear motor in which a back yoke can readily be mounted onto a linear motor body. The linear motor body is surrounded or wrapped by the back yoke that works to form part of a...
9000631 Electric drive unit  
An electric drive unit includes a stator which is received in a metal housing, and a rotor rotates within the stator. A synthetic material housing is arranged on the metal housing in the region of...
9002022 Methods for non-destructive inspection of thick fiber-reinforced composite parts  
A fiber-reinforced composite part comprises structural fiber strands and linear electromagnetic-to-acoustic transducers embedded in a polymeric matrix. When these internal transducers are activated...
9000639 Mounting cap for insulated stator of outer rotor motor  
A mounting cap is provided for use with an insulated stator of an outer rotor motor. The mounting cap is configured to support the stator and is fixed to the stator to prevent relative rotation...
9000632 Electric motor for construction machinery, and cooling circuit for electric motor  
A cooling circuit for an electric motor for a construction machine includes a circulation line that includes a shaft-side line disposed in a rotor shaft of the electric motor, a pump that supplies...
9000646 Table for permanent magnet rotor and method for manufacturing permanent magnet rotor  
A method for assembling rotors which is applicable to a large axial gap type permanent magnet rotating machine is provided. A permanent magnet rotating machine comprising: a rotating shaft; at...
9000655 Piezoelectric film, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelectric generating element  
The present invention provides a non-lead piezoelectric film having high crystalline orientation, the low dielectric loss, the high polarization-disappear temperature, the high piezoelectric...
9001459 Motor with stator teeth having an increased width and slanted portion  
A stator includes a stator core and a plurality of coils. The stator core includes a core-back and a plurality of teeth portions. Each of the teeth portions includes a coil winding portion, a tip...
9000641 Actuator for electric adjusting device of vehicle seat with several adjusting functions  
An actuator for an electric adjusting device of a vehicle seat has several adjusting functions. The actuator includes a frame, an electric drive motor disposed on the frame, having an output shaft...
9000650 Laminated core for electromagnetic applications  
The invention relates to a laminated core for electromagnetic applications with at least two segments (2), of which at least one on a side-edge (11), comprises an engagement groove (12) and the...
9000651 Method and apparatus for generating electricity by thermally cycling an electrically polarizable material using heat from various sources and a vehicle comprising the apparatus  
A method for converting heat to electric energy is described which involves thermally cycling an electrically polarizable material sandwiched between electrodes. The material is heated using...