Abstract: Provided is a stacked rotor core of a motor, the rotor core including a thin disk-shaped rotor core member including a shaft hole extended to a direction of a rotation shaft, a key groove communicating with the shaft hole and a magnet, a shaft press-fitted into the shaft hole and concavely formed at a peripheral position corresponding to that of the key groove with a key accommodation groove, and at least one or more keys formed at the key groove and the key accommodation groove to restrict the rotor core member and the shaft.

Abstract: A rotor core configured to rotate about an axis includes a first end lamination, a second end lamination, and a middle lamination, which is disposed axially between the first end lamination and the second end lamination. The middle lamination has a plurality of first apertures, and the first end lamination and the second end lamination do not have the first apertures.

Abstract: A rotor of an electric motor comprises a rotor core composed of laminated steel plates and having pin holes; a pair of end plates having insertion holes of a diameter being greater than or equal to the diameter of the pin holes of the rotor core and arranged on opposite sides of the rotor core; and fastening members inserted into the pin holes of the rotor core, fitted in the insertion holes of the pair of end plates, and pressed by staking at opposite end portions thereof, wherein each fastening member has a body portion, main radially-expanded portions continued from the body portion and being larger in diameter than the insertion holes of the end plates, and protrusions continued from the main radially-expanded portions and protruding from the main radially-expanded portions.

Abstract: An electrical machine (1) with a machine housing (5) receiving an electrically excited rotor (2) and a stator (10) of the electrical machine (1) and with an electronics unit (18) fastened to the machine housing (5) and electrically connected to an exciter winding (3) of the rotor (2) via at least one sliding contact (11, 12) consisting of at least one slip ring (13, 14) assigned to the rotor (2) and at least one brush (15, 16) assigned to the electronics unit (18), the brush (15, 16) being arranged displaceably in a brush holder (20). In this case it is provided that the brush holder (20) is fastened exchangeably in a guiding recess (27) of the electronics unit (18).

Abstract: The present invention relates to a brush cover for a brush-commutated electric motor. The brush cover comprises at least one lever brush which is mounted rotatably about an axis at the brush cover by means of a bolt. According to the invention, the bolt is surrounded, at least in sections, by at least one damping sleeve of an elastomer.

Abstract: There is provided a spindle motor including: a shaft rotatably supported by a sleeve; and a rotor hub fixedly installed on an upper end portion of the shaft, wherein the shaft includes a burr generation suppression part formed at the upper end portion thereof in order to suppress burr generation in an inner peripheral surface of the rotor hub in the case in which the rotor hub is press-fitted to the shaft.

Abstract: Systems are described for obtaining energy from water movements in shallow waters. Some systems use panels (4) that are pivotally mounted (13) near the sea floor in shallow water and that extend up to the sea surface, or that are pivotally mounted above the sea surface and extend down into the sea. Electricity is obtained by stretching and relaxing capacitor devices that each has a sheet (188) of elastomeric material and has electrodes (184, 186) at the sheet opposite faces. In one system, a pair of capacitor devices (180, 182) lie in a cylinder (152) that holds a piston head (160). Upper and lower ends (190, 194, 197, 199) of the devices are mounted so when one capacitor device is stretched (1806) the other is relaxed (182B).

Abstract: Devices having piezoelectric material structures integrated with substrates are described. Fabrication techniques for forming such devices are also described. The fabrication may include bonding a piezoelectric material wafer to a substrate of a differing material. A structure, such as a resonator, may then be formed from the piezoelectric material wafer.

Abstract: System and method for generating and storing electricity by electromagnetic induction using a magnetic field modulated by the formation, dissipation, and movement of vortices produced by a vortex material such as a type II superconductor and further including a vortex flux generator in cryostat and a refrigerant compartment having bi-directionally thermal transfer to the vortex flux generator. Magnetic field modulation occurs at the microscopic level, facilitating the production of high frequency electric power. Generator inductors are manufactured using microelectronic fabrication, in at least one dimension corresponding to the spacing of vortices. The vortex material fabrication method establishes the alignment of vortices and generator coils, permitting the electromagnetic induction of energy from many vortices into many coils simultaneously as a cumulative output of electricity. A thermoelectric cycle is used to convert heat energy into electricity.

Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and Al/Si alloy-containing internal electrodes at a plurality of specific interface between ceramic layers; and an external electrode formed on the outer surface of the laminate, wherein the Al/Si ratio of the Al/Si alloy is 85/15 or more.

Abstract: 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 surface of the element-mounting member 110 and includes an element-mounting region 118a and a lead region 118b, and an integrated circuit element 130 which is electrically connected to the element-mounting region 118a of the metal pattern 118 by solder bump 132, wherein the metal pattern 118 has a projecting part 119 which is provided between the element-mounting region 118a and the lead region 118b, and at least the surface portion of the projecting part 119 is made of a metal oxide.

Abstract: A resonator includes an interdigital transducer electrode, a resonance part, a supporting part, and two beam parts. The interdigital transducer electrode is disposed on a piezoelectric thin film. The resonance part is held on a substrate through an air gap. The supporting part supports the resonance part. The two beam parts connect the resonance part to the supporting part at both ends of the resonance part. The air gap forms a level difference at the supporting part or level differences at the respective two beam parts.

Abstract: A drive device includes a movable member, plural piezoelectric motors that cause the movable member to move in a predetermined direction, a drive circuit that drives the plural piezoelectric motors, and plural relays that electrically connect or disconnect at least one of the plural piezoelectric motors to or from the drive circuit.

Abstract: The claimed invention is directed to integrated energy-harvesting piezoelectric cantilevers. The cantilevers are fabricated using sol-gel processing using a sacrificial poly-Si seeding layer. Improvements in film microstructure and electrical properties are realized by introducing a poly-Si seeding layer and by optimizing the poling process.

Abstract: A piezoelectric motor includes a piezoelectric element, a first support member, a second support member, a third support member, and a fourth support member that support the piezoelectric element, a elastic portion that presses the first support member and the second support member, a case that comes in contact with the third support member and the fourth support member, and a pressing plate that presses the elastic portion.

Abstract: A piezoelectric motor includes a piezoelectric element, an oscillating plate including the piezoelectric element, a driving projection provided at an end of the oscillating plate, and a driven member driven by the driving projection coming into abutment therewith and is characterized in that Young's modulus E1 of the driving projection and Young's modulus E2 of the driven member are different.

Abstract: An actuator includes a vibrating piezoelectric element and a holding section configured to hold the piezoelectric element. The holding section includes a first supporting section arranged on a vibrating surface of the piezoelectric element and arranged on one side of the piezoelectric element and a second supporting section arranged on the other side of the piezoelectric element.

Abstract: An actuator includes a vibrating piezoelectric element, and a holding unit that holds the piezoelectric element, in which the holding unit is disposed on a vibrating surface of the piezoelectric element, and includes a first support unit and a second support unit that are disposed on one side of the piezoelectric element, and a third support unit and a fourth support unit that are disposed on the other side of the piezoelectric element.

Abstract: The disclosed technology features methods for the manufacture of electrical components such as ultrasound transducers. In particular, the disclosed technology provides methods of creating an ultrasonic transducer by connecting one or more multi-layer printed circuits to an array of ultrasound transducer elements. In one embodiment, the printed circuits have traces in a single layer that are spaced by a distance that is greater than a pitch of the transducer elements to which the multi-layer printed circuit is to be connected. However the traces from all the layers in the multi-layer printed circuit are interleaved to have a pitch that is equal to the pitch of the transducer elements. The disclosed technology also features ultrasound transducers produced by the methods described herein.

Abstract: An ultrasonic generator that includes an ultrasonic generating element and a first acoustic path. The ultrasonic generating element includes a frame including a through hole in its central portion, a first transducer being flat-shaped and bonded to a first principal surface of the frame, and a second transducer being flat-shaped and bonded to a second principal surface of the frame and is configured to generate ultrasonic waves in a buckling tuning-fork vibration mode where the first transducer and the second transducer vibrate in mutually opposite phases. The first acoustic path is disposed so as to be adjacent to at least one of both principal surfaces of the ultrasonic generating element and configured to compress the ultrasonic waves generated from the ultrasonic generating element and to allow the ultrasonic waves to propagate therethrough in a direction along the principal surface of the ultrasonic generating element.

Abstract: Embodiments of the present invention are generally related to an energy scavenging system using elasto-electric plates and methods thereof. In one embodiment of the present invention, an energy scavenging system comprises at least one piezoelectric region in a roadbed or walkway, wherein the piezoelectric region generates electric fields by the strain deformation from vehicles rolling over it or pedestrians stepping upon it; and at least one plate of a solid material embedded in the roadbed or walkway, wherein the plate is designed to sustain, transmit and guide elastic plate modes that are generated in the piezoelectric region and launched into the plate at a first location; wherein the elastic plate modes are guided laterally through the plate to a second location, at which they are converted to electrical energy by the piezoelectric effect.

Abstract: Devices having piezoelectric material structures integrated with substrates are described. Fabrication techniques for forming such devices are also described. The fabrication may include bonding a piezoelectric material wafer to a substrate of a differing material. A structure, such as a resonator, may then be formed from the piezoelectric material wafer.

Abstract: Disclosed is a bulk acoustic wave resonator (BAWR). The BAWR includes a bulk acoustic wave resonance unit with a first electrode, a second electrode, and a piezoelectric layer. The piezoelectric layer is disposed between the first electrode and the second electrode. An air edge is formed at a distance from a center of the bulk acoustic wave resonance unit.

Abstract: A piezoelectric multilayer component is specified. At least one external electrode is fixed to a stack of piezoelectric layers and electrode layers arranged therebetween. At wherein at least one region of the external electrode projects beyond the stack and the external electrode is at least partly pressure-deformed in said region. Furthermore, a method for forming an external electrode in a piezoelectric multilayer component is specified.

Abstract: There is provided a spindle motor including: a sleeve rotatably supporting a shaft; a cover member installed on a lower end portion of the sleeve; and a bonding member disposed between the sleeve and the cover member such that the cover member is installed on the sleeve and formed of an anisotropic conductive material.

Abstract: Disclosed herein is a spindle motor including: a shaft; a rotor case coupled to the shaft to rotate integrally with the shaft and including a rotor magnet coupled to an inner portion thereof; a base plate to which the shaft is rotatably coupled; a bearing coupled to an outer peripheral surface of the shaft to rotatably support the shaft; a bearing holder coupled to an outer peripheral surface of the bearing to support the bearing and fixedly coupled to an upper portion of the base plate; and a stator core part coupled to an outer peripheral surface of the bearing holder so as to face the rotor magnet, wherein the bearing has a length of an inner peripheral surface contacting the shaft longer than a length of an outer peripheral surface contacting the bearing holder.

Abstract: A motor with an encoder has a motor, and an encoder disposed on the anti-load side of this motor. The motor includes a motor electromagnetic part, and a motor shaft rotatably supported by a load side bearing and an anti-load side bearing, and the encoder includes a hub having a convex part formed in a load side end thereof, the hub being coaxially fixed to an anti-load side end of the motor shaft, and a rotating disc fixed to an anti-load side end of this hub. The convex part of the hub is fitted to a concave part formed in the anti-load side end of the motor shaft so that the hub is fixed to the motor shaft.

Abstract: A motor for an electric power steering device, includes: a housing side bearing which is placed on the output side of a shaft of a rotor placed in a frame, and is supported by a housing connected to the frame; and a frame side bearing which is placed on the opposite output side of the shaft of the rotor, and is composed of an outer ring and an inner ring supported by the frame.

Abstract: Electronic devices may be provided having internal components mounted to a structural glass support member. The structural glass support member may have a planar front surface that forms a front surface of the device. The structural glass support member may have bent portions that form sidewall surfaces of the device. Portions of the structural glass support member may form a transparent display cover layer. A rigid or flexible display may be mounted to the structural glass support member. Additional internal device components may be mounted to the display. A thin enclosure for enclosing the internal components in the device may be mounted to the structural glass support member. The thin enclosure may be mounted to the structural glass support member using a peripheral member. The thin enclosure may be free from attachments to internal components or may be adhesively bonded to one or more internal components.

Abstract: Mobile devices with mechanically bonded connector assemblies and methods for forming such mobile devices are provided. A representative mobile device includes: a housing comprising a metal chassis; and a plastic connector assembly mechanically bonded to the metal of the chassis. A representative method includes: providing a metal chassis, the chassis defining an interior; and mechanically bonding a plastic connector assembly to the chassis, the connector being located within the interior.

Abstract: A housing of an electronic device includes a main body, at least one sidewall, and a strengthening portion. The sidewall bends outward from an edge of the main body. The sidewall includes an inner side surface adjacent to the main body and an outer side surface opposite to the inner side surface. The strengthening portion is located on the inner side surface of the at least one sidewall. The sidewall defines a connecting port at the outer side surface thereof, and the connecting port passes through the at least one sidewall and the strengthening portion. The present disclosure further provides a manufacturing method of the housing.

Abstract: A casing in which a module substrate is to be enclosed, the casing includes a rail portion that slidably supports the module substrate, and a shutter portion provided so as to open and close an opening for ventilation. The casing includes a pin portion that is provided in the rail portion and contacts an edge of the module substrate while the module substrate is supported by the rail portion. The casing includes a link mechanism that allows the shutter portion to move in accordance with the moving distance of the pin portion.

Abstract: An exemplary computer case includes a side plate, a rear cover and a knob. The side plate defines a recess. The rear cover defines a flange for abutting against the side plate when the side plate is attached to the computer case. The knob is partially and rotatably received in the recess. The knob includes a protruding member capable of being driven to rotate to a position where the protruding member and the side plate cooperatively sandwich the flange therebetween so that the side plate is attached to the computer case.

Abstract: The invention relates to a drive device for moving a movable furniture part, in particular a drawer, said drive device acting as a latching and unlatching spring-loaded ejection device for ejecting the furniture part from a closed position in the opening direction and as a spring-loaded refraction device for retracting the furniture part into the closed position. The same spring spring-loads the drive device both when the latter acts as an ejection device and when the drive device acts as a refraction device.

Abstract: A cover opening-closing device for opening or closing a cover relative to a base is provided. The cover opening-closing device includes an actuation module, a transmission module, and a rotating shaft. The actuation module is disposed on the base and between the base and the cover. The transmission module is engaged to the actuation module. The rotating shaft has a first end and an opposite second end. The first end is joggled to the actuation module, and the second end is connected to the cover. The actuation module drives the rotating shaft to rotate through the transmission module, so as to allow the cover connected to the rotating shaft to move to an open position or a close position relative to the base. Thereby, a user's time is saved and proper opening and closing of the cover is ensured. A multi-function printer with the cover opening-closing device is further provided.

Abstract: An equipment enclosure for housing electronic components includes a front assembly having a front frame, the front assembly defining a front of the enclosure, and a rear assembly having a rear frame. The enclosure further includes at least two side brace members, each side brace member having a first end and a second, opposite end. A first connector is configured to releasably connect the first end of one of the side brace members to the front frame. A second connector is configured to releasably connect the second end of the one of the side brace members to the rear frame. Other embodiments and methods are further disclosed.

Abstract: A locker device for a locker may include a drawer housing to house a drawer, a frame support member extending from the drawer housing and a second shelf wall being supported by the frame support member. The frame support member may be detachably connected to the drawer housing, and the second shelf wall may be detachably connected to the frame support member.

Abstract: The present invention provides an LED-light heatsink and a light-emitting diode (LED) lamp having the same heatsink. The LED-light heatsink comprises: a hollow heatsink body; and a heatsink baseplate for enclosing one end of the heatsink body. The present invention can significantly improve the heat-dissipation effect of an LED-light.

Abstract: A spark plug having excellent load life performance even when the spark plug receives an impact or vibration. The spark plug includes an accommodated portion of a metallic terminal, which is accommodated in an axial hole of an insulator, having a plurality of bent portions formed as a result of proper bending of the accommodated portion. The bent portions are in close vicinity to an inner circumferential surface of the insulator at three or more locations, and are present without localizing in the radial direction of the axial hole.

Abstract: A method of manufacturing a microfluidic chip includes: irradiating, with a laser light, an area to be provided with a valley for storing a fluid on a surface of a substrate so as to form a modified region having a periodic pattern formed in a self-organizing manner in a light-collecting area of the laser light, the laser light having a pulse width for which the pulse duration is on the order of picoseconds or less; carrying out an etching treatment on the substrate in which the modified region is formed, removing at least some of the modified portion so as to provide the valley, and forming a periodic structure having a plurality of groove portions along one direction which have a surface profile based on the periodic pattern on at least a bottom surface of the valley; and forming a metal layer that covers the periodic structure of the bottom surface.

Abstract: In an accelerating tube which uses a conductive insulator, there is a possibility that the dopant concentration on a surface of the conductive insulator becomes non-uniform so that the surface resistance of the conductive insulator becomes non-uniform. Accordingly, a circumferential groove is formed on the inner surface of the conductive insulator accelerating tube in plural stages, and metal is metalized along inner portions of the grooves. When the resistance of a specific portion on the surface of the accelerating tube differs from the resistance of an area around the specific portion, the potential of the metalized region on the inner surface of the accelerating tube becomes a fixed value and hence, the potential distribution on the inner surface of the accelerating tube in the vertical direction can be maintained substantially equal without regard to the circumferential direction.

Abstract: Mercury vapor discharge fluorescent lamps are provided. The lamp can include a lamp envelope enclosing a discharge space and having an inner surface. First and second electrodes can be positioned on the lamp, such as on opposite ends of the lamp envelope. An ionizable medium that includes mercury and an inert gas can be within said lamp envelope. A phosphor layer can be on the inner surface of the lamp envelope. The phosphor layer generally includes a phosphor blend of a calcium halophosphor, a blue phosphor having an emission peak at about 440 nm to about 490 nm, a blue-green phosphor having an emission peak at about 475 nm to about 530 nm, and a red phosphor having an emission peak at about 600 nm to about 650 nm.

Abstract: A plasma tube array-type display device has an improved high resolution and sufficient brightness. In the plasma tube array-type display device comprising a plasma tube array that includes a plurality of plasma tubes 31, 31, . . . arranged in parallel, each plasma tube 31 has a transverse section orthogonal to the longitudinal direction of a vertically long, flattened shape having its longer diameter vertically, and the plurality of plasma tubes 31, 31, . . . are arranged to adjoin each other by their tube walls of longer diameter side.

Abstract: The inner surfaces of fluorescent lamp tubing are provided with a phosphor coating. The phosphor coating defines an inward-facing surface. A protective coating is deposited on the inward-facing surface of the phosphor coating. The protective coating defines an innermost surface and makes effective recombination of Hg ions possible on the innermost surface of the second coating before the Hg ions collide with the phosphor particles in the phosphor coating.

Abstract: A blue to yellow emitting phosphor from the class of orthosilicates, which substantially has the structure EA2SiO4:D, wherein the phosphor comprises as component EA at least one of the elements EA=Sr, Ba, Ca or Mg alone or in combination, wherein the activating doping D consists of Eu and wherein a deficiency of SiO2 is introduced, such that a modified sub stoichiometric orthosilicate is present.

Abstract: An organic light-emitting display device includes a substrate, a first electrode on the substrate, an organic layer on the first electrode, the organic layer including a light-emitting layer, a second electrode on an opposite side of the organic layer from the first electrode, a protective layer on the second electrode, a window member spaced apart from the protective layer, wherein the first electrode, the organic layer, the second electrode, and the protective layer are between the window member and the substrate, and a bead coating layer between the protective layer and the window member.

Abstract: A light-emitting structure and a method of fabricating the light-emitting structure. The method includes covering an LED die provided on a carrier with a uniform phosphor layer, with an accommodation space constituted by the carrier and the uniform phosphor layer; and forming in the accommodation space a first light-pervious body such that the uniform phosphor layer in various shapes is formed on the LED die. The light-emitting structure thus fabricated has excellent optical property.

Abstract: A plasma processing apparatus can excite uniform plasma on a large substrate. The plasma processing apparatus 10 includes a vacuum chamber 100 having therein a mounting table 115 configured to mount a substrate G, and a plasma space, formed above the mounting table, in which plasma is generated; a first coaxial waveguide 225 through which a high frequency power for exciting plasma is supplied into the vacuum chamber 100; a waveguide path 205, connected to the first coaxial waveguide 225, having a slit-shaped opening toward the plasma space; and an adjusting unit configured to adjust a wavelength of the high frequency power propagating in the waveguide path in a lengthwise direction of the slit-shaped opening. By adjusting the wavelength of the high frequency power propagating in the waveguide path to be sufficiently lengthened, uniform plasma can be excited on the large substrate.

Abstract: In order to increase a service life of a microwave generator, a resonator configuration for a microwave generator has a hollow cylindrical electrical conductor positioned inside a housing, a first electrode, and a second electrode. Two electrodes are spaced apart from one another and form a spark gap in the region of the conductor. A contact element is provided for making electrical contact between the conductor and the first electrode. The position of the first electrode can be adjusted to modify a length of the spark gap. Furthermore, the contact element is electrically connected to the first electrode or its holder so as to resist movement so that the opposing contact surfaces remain in contact even when the position of the first electrode is adjusted with respect to the second electrode. The contact element is configured to be deformable, preferably elastically deformable, for this purpose.

Abstract: A vehicle lamp include san LED package as a light source. The LED package includes a first series element section having a plurality of LED elements connected in series with each other, a second series element section having at least one LED element, the number of which is smaller than the number of LED elements of the firs series element section, a first anode electrode provided on an anode side of the first series element section, a first cathode electrode provided on a cathode side of the first series element section, a second anode electrode provided on an anode side of the second series element section, and a second cathode electrode provided on a cathode side of the second series element section.