| MINEBEA CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120134795 | CENTRIFUGAL FAN - A centrifugal fan is provided. The centrifugal fan is configured such that an impeller having a plural blades disposed between a disk-shaped main plate and an annular shroud along a circumferential direction is accommodated in a casing, and that an air suctioned from a suction opening is discharged outward in a radial direction of the impeller by a centrifugal force due to a rotation of the impeller, and thereby discharging the air from the casing. The casing includes an upper plate, a lower plate, and a plural supporting struts interposed between the upper plate and the lower plate, and lateral sides of the casing have only the supporting struts to form a discharge opening. | 05-31-2012 |
| 20120105368 | DATA INPUT DEVICE OF ELECTRONIC DEVICE AND INPUT CONTROL METHOD - A data input device for an electronic device includes: a operation section having a plurality of capacitive touch sensors to detect a input operation; and a control circuit section that outputs output information corresponding to detected information of the input operation input from the operation section to the electronic device when it is determined that the input operation is performed, wherein the control circuit section is configured to configure arbitrarily a detection sensitivity of the touch sensor before determining whether the input operation is performed, wherein the control circuit section determines whether the input operation is performed in response to a magnitude of an input value of the detected information, based on the configured detection sensitivity, wherein, when it is determined that the input operation is performed, the control circuit section updates the detection sensitivity configured for the touch sensors based on the magnitude of the input value. | 05-03-2012 |
| 20120105194 | DATA INPUT DEVICE FOR ELECTRONIC INSTRUMENT AND METHOD OF ENTERING DATA - A data input device includes: an operation section including an electrostatic capacitance type touch sensor; and a control circuit section which determines if a data input operation is true or false and sends an output data corresponding to a sensed data only when the data input operation is determined as true. When one or more of the sensed data are entered into the control circuit section, a coordinate is identified which determines the data input operation as true based on invalidation determination region information previously prepared for each of coordinates corresponding to the sensed data, wherein while the sensed data for the coordinate indentified is entered, the data input operation, which is implemented to a coordinate other than the identified coordinate to determine the data input operation as true among a group aggregate of the coordinates corresponding to the sensed data within an invalidation determination region, is determined as false. | 05-03-2012 |
| 20120104961 | LIGHTING DEVICE OF DISCHARGE LAMP AND METHOD OF CONTROLLING LIGHTING OF DISCHARGE LAMP - A lighting device of a discharge lamp, the lighting device includes: a DC voltage generating circuit including: a switching element that is controlled by a first controlling signal; and a coil that has one end portion, to which a first DC voltage is input, and the other end portion of the coil outputs a second DC voltage, and an AC voltage generating circuit that converts into an AC voltage and supplies to the discharge lamp; and a control circuit unit, which receives a polarity-inversion instructing signal, which generates a second controlling signal to determine a timing of polarity-inversion after a predetermined first period is elapsed, which sets a latest ON period, wherein the latest ON period is set based on both an elapsed time and the duty ratio, and which generates the first controlling signal to restart the ON/OFF control at a timing after a second period is elapsed. | 05-03-2012 |
| 20120103778 | INPUT APPARATUS - An input apparatus including a layered body is provided. The layered body includes an electrostatic capacity type touch sensor, a character and symbol printed film, on which characters or symbols are printed, and a surface light emitting layer configured to illuminate the character and symbol printed film. The character and symbol printed film is arranged on an upper surface side of the surface light emitting layer, the touch sensor is arranged on a lower surface side of the surface light emitting layer, and an input operation surface that is positioned at an uppermost surface is flat. | 05-03-2012 |
| 20120098633 | Transformer - A transformer ( | 04-26-2012 |
| 20120081057 | METHOD FOR OPERATING AN ACTUATOR - A method for operating an electrically driven actuator having a power supply that has an energy storage unit ( | 04-05-2012 |
| 20120075086 | INPUT DEVICE, VIBRATION DEVICE AND INPUT DETECTION METHOD - An input device includes an input operation unit, on which an input operation is performed; an input operation detection unit that detects at least one of acceleration and pressure to the input operation unit; an input determination unit that determines whether the at least one of acceleration and pressure detected by the input operation detection unit is an effective input operation; and a vibration unit that, when the at least one of acceleration and pressure is detected by the input operation detection unit, starts to vibrate before the input determination unit outputs a determination result. | 03-29-2012 |
| 20120062049 | ELECTROMECHANICAL ENERGY CONVERTER - An electromechanical energy converter ( | 03-15-2012 |
| 20120025665 | SINGLE-PHASE BRUSHLESS MOTOR - A single-phase brushless motor, includes: a rotor including plural magnetic poles; a stator disposed facing the rotor via a gap and including the same number of salient poles as that of the magnetic poles; a driving coil wound around the plural salient poles; a salient pole surface having a bevel-shape and provided on each salient pole, the salient pole surface facing the rotor a groove provided at a position between a center and an end in a circumferential direction of each salient pole surface; in which a wave shape of each surface magnetic flux of the plural magnetic poles has a distribution of the surface magnetic flux density composed of sloping portions disposed at both sides of the wave shape and a plane portion disposed between the sloping portions. | 02-02-2012 |
| 20120025649 | MOTOR MOUNTING PLATE - A motor mounting plate, composed of a metallic plate, includes: a disc-shaped plate body having a mounting portion to which a motor is mounted, and at least three flanges formed at a circumferential edge of the plate body, the flanges mounted at predetermined locations, an angle between adjacent flanges around the center of the plate body is 140° to 180°. | 02-02-2012 |
| 20120014152 | METHOD FOR CONTROLLING SWITCHING POWER UNIT - There is provided a method for controlling a switching power unit that converts AC input voltages of an AC source into a DC voltages while improving a power-factor of the AC input voltages, the switching power unit comprising an AC/DC converter circuit that is composed of a power-factor correction unit and a current resonance converter unit wherein at least a part of switching elements of the current resonance converter unit is shared with switching elements of the power-factor correction unit, wherein around timing that polarities of the AC source are switched between a positive half cycle and a negative half cycle, ON-and-OFF control of the switching elements are performed as that high frequency voltages that are applied to a primary winding of a high frequency transformer which is a part of the current resonance converter unit are to be symmetrical in a positive and negative relation. | 01-19-2012 |
| 20120002837 | SPEAKER AND METHOD OF ASSEMBLING SAME - There is provided a speaker which has a frame structure divided into a first frame and a second frame, wherein tinsel wires are arranged so as not to overlap, with respect to the plane direction, the second frame to which a magnetic circuit is attached, whereby the second frame can be arranged as forward as possible thus enabling reduction of the thickness of the speaker. Also, the first frame and the second frame are both provided with respective frame connection mechanisms and therefore can be easily positioned and connected to each other thus enhancing the workability. The speaker enables further reduction of the thickness without deteriorating input durability and bass range reproduction capability and can be produced with an excellent assembly workability. | 01-05-2012 |
| 20120001584 | MOTOR CONTROL DEVICE AND OUT-OF-STEP DETECTING METHOD - A motor control device for a stepping motor including at least two phase coils and a rotor is provided. The motor control device includes a control unit which applies a pulse voltage subjected to pulse width modulation, to each of the at least two phase coils, a back electromotive voltage measuring unit which provides a halt period to temporarily halt the application of the pulse voltage to one of the phase coils when a direction of the coil current flowing in the one phase coil is switched, and which measures a back electromotive voltage induced in the one phase coil during the halt period, an out-of-step detecting unit which detects an out-of-step of the stepping motor if the measured back electromotive voltage satisfies a predetermined criterion, and a voltage control unit which sets a voltage for all phase coils other than the one phase coil to a constant voltage during the halt period. | 01-05-2012 |
| 20110316374 | MOTOR SUPPORT STRUCTURE AND ACTUATOR INCORPORATING SAME - There is provided an actuator including a motor and a case adapted to house the motor. In the actuator, an output shaft of the motor is supported by a structured configured such that an elastic member is disposed between the case and at least one end of the output shaft, wherein the elastic member is in contact with a portion of the case in an engaging manner whereby the elastic member is prevented from shifting relative to the case in the rotation direction of the output shaft, and also wherein the elastic member is in contact with a portion of the motor in an engaging manner whereby a body of the motor is prevented from shifting relative to the elastic member in the rotation direction of the output shaft. | 12-29-2011 |
| 20110304830 | COLOR WHEEL, MANUFACTURING METHOD OF THE COLOR WHEEL, AND PROJECTOR INCLUDING THE COLOR WHEEL - There is provided a manufacturing method of a color wheel for a projector. The method includes contacting a phosphor layer contour correcting device on a surface of a color wheel substrate, the phosphor layer contour correcting device having a concavity to form a space that patterns a desired phosphor layer contour, the length of which is constant in a radial direction; injecting phosphor additive resin into the space that is composed of a surface of the color wheel substrate and the concavity of the phosphor layer contour correcting device; maintaining the phosphor additive resin in the space; and heating the phosphor additive resin. | 12-15-2011 |
| 20110291605 | SINGLE-PHASE AC SYNCHRONIZED MOTOR - There is provided a single-phase AC synchronized motor that does not need smooth of rectifier waves but stably performs shift from a starting operation to a synchronized operation. In the motor, based on detected signals of a position sensor, rectified current is reciprocally flowed to each direction of a single-phase coil which starts the motor. The motor includes a start-up operation circuit with a sensor starting period that increases a rotational speed until reaching to a first predetermined rotational speed; and a control device that controls operation of the motor as that shift to synchronized operation is performed when a rotational speed of a permanent magnetic rotor is reached to a second predetermined rotational speed nearby a synchronized rotational speed but not exceeding the synchronized rotational speed, and when the rise and fall of detected signals of the position sensor and the zero-cross point of AC current are approximately correspondent to each other. | 12-01-2011 |
| 20110285217 | STEPPING MOTOR - A claw-pole-type stepping motor includes a stator annularly disposed therein and having a coil, a rotor rotatably disposed inside the stator and having a multiply magnetized permanent magnet and a shaft, an outer yoke provided in the stator and having a cup shape opening toward an axially outside direction an outer circumferential portion provided in the outer yoke and having a cylindrical shape and an inner circumferential portion including first pole teeth, an inner yoke provided in the stator and having second pole teeth provided in an inner circumference thereof and an outer circumferential portion fixed to an inner circumferential surface of the outer circumferential portion of the outer yoke, in which the first pole teeth and the second pole teeth are engaging with each other via a gap in an axial direction and are disposed with respect to the permanent magnet of the rotor via a gap, a fixed portion of the inner yoke and the outer yoke is positioned at the axial inside of an opening end of the cup shape of the outer yoke and the opening end protrudes beyond the fixed portion toward the axially outer direction. | 11-24-2011 |
| 20110266964 | ELECTRICAL APPLIANCE HAVING A LIGHTING DEVICE HAVING LIGHT EMITTING DIODES - An electrical appliance, particularly a television or a monitor, having a lighting device ( | 11-03-2011 |
| 20110266894 | MANUFACTURING METHOD OF LAMINATED MAGNET FILM WITH SELF-BONDING LAYER - There is provided the manufacturing method of a laminated magnet film, including the steps of: a first step of preparing a magnet film, 40 μm to 300 μm in thickness, provided with a nanocrystalline structure magnetically isotropic; a second step of applying a self-bonding resin composition with film formability on the magnet film preparing a self-bonding magnet film composed of the magnet film and a self-bonding layer; a third step of mechanically processing the self-bonding magnet film being solid or hollow; a fourth step of preparing the laminated magnet film by laminating the self-bonding magnet films; a fifth step of melting the self-bonding layer of the laminated magnet film and then cooling and solidifying the self-bonding layer to integrally rigidify the laminated magnet film; and a sixth step of magnetizing the rigidified laminated magnet film. | 11-03-2011 |
| 20110262271 | AXIAL FAN - An axial fan is provided. The axial fan includes a hub, an impeller having a plurality of blades mounted on an outer peripheral surface of the hub, and a housing surrounding the impeller. Each of the blades has a front edge angle (α) within a range of −8° to −20°, a mounting angle (β) within a range of 36° to 50°, and a twisted angle (θ) within a range of 10°±2°. | 10-27-2011 |
| 20110262059 | SLIDING BEARING HAVING SELF-LUBRICATING LINER - The sliding bearing has a metallic outer ring and a self-lubricating liner formed on the inner circumferential surface of the outer ring. The self-lubricating liner has a self-lubricating resin composition consisting of a mixture of 60 to 80% by weight of polyetherketone-based resin, 10 to 30% by weight of polytetrafluoroethylene, 5 to 15% by weight of carbon fiber and not more than 15% by weight of aramid fiber, total amount of the carbon fiber and the aramid fiber being 10 to 25% by weight. The inner circumferential surface of the outer ring has a surface roughness in terms of center line average roughness not less than R | 10-27-2011 |
| 20110249922 | PIVOT ASSEMBLY BEARING - The present invention provides a pivot assembly bearing having a bearing inner ring, a shaft, a bearing outer ring, a housing, and an UV curable anaerobic adhesive fixing the bearing inner ring to the shaft, and the bearing outer ring to the housing, and that the adhesive includes 15 to 25% of urethane acrylate, 45 to 55% of acrylic acid diester, less than 3% of acrylic acid monomer, 15 to 30% of hydroxyalkylmethacrylate, less than 3% of anaerobic catalyst, and less than 3% of photopolymerization initiating agent, and in addition, a coloring agent, if necessary. As a result, a pivot assembly bearing with reduced outgas, shorter adhesive curing time, and no tack at the adhesive surface is obtained. | 10-13-2011 |
| 20110242854 | SWITCHING POWER UNIT - There is provided switching power unit comprising: a PFC voltage detector that detects PFC voltages of the power-factor improvement unit; an output voltage detector that is provided in a current resonance converter unit; a switching controller into which output signals from the PFC voltage detector and output signals from the output voltage detector are input, wherein the switching controller in a full-bridge circuit of first to fourth switching elements, based on output signals from the PFC voltage detector and the output voltage detector, controls the PFC voltages by changing on-duty of the first and second switching elements, and also controls the output voltages by changing switching frequencies of the full-bridge circuit. | 10-06-2011 |
| 20110241499 | BRUSHLESS DC MOTOR - A brushless DC motor is provided and includes: a stator assembly; a rotor assembly including a sleeve; a case assembly; and a circuit board assembly which has an electronic component mounted thereon. The case assembly is provided with an opening, the electronic component passes through the opening so as to protrude inside the case assembly, and a groove is formed at an axial end of the sleeve of the rotor assembly in order to prevent the electronic component from making contact with any part of the rotor assembly. Thus, the axial dimension of the brushless DC motor that includes the electronic component disposed to protrude inside the case assembly can be successfully reduced in such a manner that the electronic component is accommodated within the groove. Further, no electronic component is disposed around the outer circumference of the stator assembly and therefore the radial dimension also can be kept small. | 10-06-2011 |
| 20110205502 | PROJECTOR - There is provided a projector at least comprising: a light source; a color wheel; a condensing lens; a spatial light modulator; and a projection optical system, wherein the light source includes a red illuminant and a blue illuminant, and the color wheel includes a disc made of optically permeable materials, the disc being composed of a green-light generating portion, a blue-light generating portion and a blue-and-green light generating portion, the green-light generating portion and the blue-and-green light generating portion each including a phosphor layer. | 08-25-2011 |
| 20110188830 | LIGHT CONDUCTIVE PLATE AND MANUFACTURING METHOD THEREOF - There is provided a high luminous light conductive plate where concave dots formed on the surface of a resin sheet deflect light introduced from a light source to the interior of the light conductive plate so as to diffuse light into an extensive range with a roughened wall surface of the concave dots. An annular projection that flanges the peripheral end portion of each concave dot substantially increases the depth of the concave dots expanding an area contributing to the deflection of the concave dot. The concave dot formed on the surface of the resin sheet is formed by pressing a plurality of concave projections of a press die on the surface of the resin sheet through a cold process. | 08-04-2011 |
| 20110188262 | LIGHT CONDUCTIVE PLATE AND MANUFACTURING METHOD THEREOF - There is provided a light conductive plate comprising: a resin sheet; and a plurality of concave dots formed on a surface of the resin sheet, wherein each concave dot in section includes a general formed portion in which to be continuously formed from an opening end portion of the concave dot toward a deep portion thereof, and a discontinuous formed portion that is fabricated at the deepest portion of the general formed portion. | 08-04-2011 |
| 20110181266 | SWITCHING POWER SUPPLY CIRCUIT - There is provided a switching power supply circuit which receives a voltage from a direct current voltage source and supplies a direct current power to a load part. The circuit includes a switching element, a current detection circuit which is serially connected to the switching element, and which converts a current flowing in the switching element into a voltage, a control circuit which outputs a switch driving signal to control an ON/OFF operation of the switching element such that a current flowing in the load part becomes constant, a reference voltage generation circuit which generates a reference voltage proportional to an ON duty of the switch driving signal, and an error amplification circuit which outputs error information between a voltage output from the current detection circuit and the reference voltage. The control circuit adjusts the ON duty of the switch driving signal based on the error information. | 07-28-2011 |
| 20110175808 | POINTING DEVICE - A pointing device is provided. The pointing device is configured to output a movement instruction signal for moving a cursor on a display in an instructed direction and includes: a pointing stick; a cursor movement including a +X sensor, −X sensor, +Y sensor and −Y sensor configured to sense a cursor movement instruction signal for instructing the cursor to move in +X direction, −X direction, +Y direction and −Y direction, respectively, according to an operation to the pointing stick; and a stick Z direction operation detector configured to determine that an instruction signal according to an operation to the pointing stick is different from the cursor movement instruction signals when each of outputs from the +X sensor, −X sensor, +Y and −Y sensor is changed by a corresponding predetermined first threshold value or greater within a predetermined time period. | 07-21-2011 |
| 20110169733 | CURSOR POSITIONING CONTROL DEVICE - A cursor positioning control device is provided. The device includes a cursor movement measuring unit configured to measure a measurement value corresponding to a movement amount of a cursor on a display every certain time, a cursor deceleration determination unit configured to subtract an N-th measurement value from an (N-1)-th measurement value of the cursor movement measuring unit, and configured to determine that the cursor is being decelerated if the subtracted value is greater than a predetermined threshold value, wherein N is a natural number. When the number of successive times that the subtracted value is greater than the predetermined threshold value exceeds a predetermined number of times, the cursor deceleration determination unit generates an instruction signal for at least further decelerating a movement of the cursor than a cursor movement deceleration speed that a user instructs. | 07-14-2011 |
| 20110148239 | BRUSHLESS MOTOR - A brushless motor includes: a stator assembly including a stator core which includes a plurality of pole teeth each having a winding therearound; and a rotor assembly including a magnet which has a ring shape, is rotatably disposed so as to oppose the pole teeth of the stator core and which is circumferentially magnetized with a plurality of magnetic poles with opposite polarities alternating with each other, wherein the number of the pole teeth of the stator core is twice the number of the magnetic poles of the magnet such that each magnetic pole opposes a pair of adjacent pole teeth, one pair of adjacent windings have the same number of winding turns and the same winding direction as each other, and wherein another pair of windings located next to the one pair of windings have a winding direction opposite to the winding direction of the one pair of windings. | 06-23-2011 |
| 20110140622 | LED DRIVING CIRCUIT - An LED driving circuit includes a dimming circuit that controls a conducting angle of an alternating current supplied from a power supply to phase-control a current to be supplied to an LED, a rectifier circuit that rectifies an alternating-current voltage output from the dimming circuit, a smoothing circuit that smoothes a direct current voltage output from the rectifier circuit, a switching device that is connected with the LED in series; a constant current control circuit that outputs a high frequency pulse signal to the switching device to control the switching device, and a bleeder circuit that is provided between an output terminal of the rectifier circuit and a ground and that has a bleeder resistance and a bleeder switch connected in series. The high frequency pulse signal is input to the bleeder switch so that a bleeder current having a high frequency pulse form flows in the bleeder resistance. | 06-16-2011 |
| 20110140558 | STEPPING MOTOR - A motor includes a stator having boss portions on an end plate thereof, a front plate provided on an upper surface of the stator, and a band connecting the stator and the front plate. Recess portions are formed adjacent to an outer peripheral edge of the front plate, and a protruding portion is provided in each recess portion. The band has a bottom plate part and attachment parts. The bottom plate part includes notched portions. Each attachment part includes an engagement portion at a tip end thereof which includes a notched portion. The notched portions of the bottom plate part are fitted with the boss portions of the end plate, and the notched portions of the engagement portions are fitted with the protruding portions of the front plate to form engagement hooks at most tip ends of the engagement portions, respectively, thereby connecting the stator and the front plate. | 06-16-2011 |
| 20110129346 | Fan Stall Inhibitor - An impeller blade hub profile which inhibits stall is described. In an embodiment, the hub profile includes a frontal rising contour followed by a rear constant contour. In another embodiment, the hub profile includes a frontal rapidly rising contour followed by a substantially rear constant contour. It was discovered that this combination is much more effective than conventionally known profiles. Also, the present invention provides a unique way of turning the flow within the passages of the rotating impeller blades. In an embodiment, the blade does not turn much over either the front portion of the hub or the rear portion of the hub, but instead turns near the boundary between the front portion and the rear portion. | 06-02-2011 |
| 20110121675 | METHOD OF RARE EARTH-IRON BASED ANNULAR MAGNET AND MOTOR FABRICATED THEREBY - Improvement of torque densities, miniaturization and weight saving for outer rotor type motors or permanent-magnet-field-type DC motors can be efficiently achieved by high-energy densification of a magnet. However, torque pulsation or armature reaction gives negative influences thereto. Further, in application of a slotless (coreless) structure eliminating the torque pulsation or the armature reaction, the magnetic resistance of motor magnetic circuits will be enhanced. For solving the above problems, there is provided an annular magnet that is opened in a reverse direction relative to the opening direction of a U-shaped segment fabricated in constantly-directed magnetic fields, the annular magnet having an anisotropic distribution where angles relative to inner peripheral tangent lines can be continuously changed in the range of approximately 0 to 90 degrees, and having energy density (BH) | 05-26-2011 |
| 20110103091 | SPREAD ILLUMINATING APPARATUS - There is provided a spread illuminating apparatus including an LED, a light guide plate and a flexible printed circuit board on which the LED is mounted, wherein the light guide plate includes: a light entrance end surface at which the light source is disposed; a light emitting portion from which light emitted from the light source and introduced into the light guide plate exits out in a spread manner; a slope portion which is disposed between the light entrance end surface and the light emitting portion and which has a thickness decreasing toward the light emitting portion; and a seat block disposed at the slope portion and configured to fixedly receive the flexible printed circuit board. In the spread illuminating apparatus, the length of the slope portion is substantially 1.78 times as large as the largest thickness of the slope portion. | 05-05-2011 |
| 20110102325 | KEYBOARD DEVICE AND ELECTRONIC EQUIPMENT USING SAME - There is provided a keyboard device with a lamination body, the lamination body comprising: a translucent touch panel; a symbol printing film on which arbitrary symbols are printed; a surface emission layer that illuminates the symbol printing film, wherein the touch panel is arranged on an upper surface side of the symbol printing film, the surface emission layer is arranged on a lower surface side of the symbol printing film, and an input operation surface that is placed on the outermost surface of the keyboard device is flat. | 05-05-2011 |
| 20110089776 | STEPPING MOTOR - A stepping motor includes: a cylindrical rotor assembly disposed around the rotation axis; a stator assembly including two stator units disposed around the rotor assembly and axially coupled to each other; and a terminal structure disposed at the axial center of the outer circumference of the stator assembly. The terminal structure includes: a terminal block cluster composed of four terminal blocks; and four terminals fixed respectively to the four terminal blocks. The four terminals each include: an internal connection portion to which one of two wire ends of the winding is connected; and an external connection portion which is disposed substantially parallel to the internal connection portion and which is connected to a driving circuit disposed externally. The four terminals are arranged in a line along a direction substantially orthogonal to the rotation axis, and the internal connection portion and the external connection portion are aligned along the rotation axis. | 04-21-2011 |
| 20110074531 | ANISOTROPIC RARE EARTH-IRON BASED RESIN BONDED MAGNET - Anisotropic rare earth-iron based resin bonded magnet comprises: [1] a continuous phase including: (1) a spherical Sm | 03-31-2011 |
| 20110051591 | FLUID DYNAMIC BEARING, SPINDLE MOTOR HAVING THE FLUID DYNAMIC BEARING, AND STORAGE APPARATUS HAVING THE SPINDLE MOTOR - A fluid dynamic bearing includes an auxiliary bearing portion, a first radial bearing portion and a second radial bearing portion arranged along an axial direction of the fluid dynamic bearing, wherein the auxiliary groove formed in the auxiliary bearing portion is shallower in depth than the radial dynamic pressure groove formed in the first radial bearing portion, and wherein a gap size in the auxiliary bearing portion is set to be equal to or larger than a gap size in the radial bearing portions. | 03-03-2011 |
| 20110043074 | STEPPING MOTOR - A stepping motor includes a rotor assembly and a stator assembly including two stator units axially coupled to each other. The two stator units each include a pair of yokes which each include a base portion and a plurality of pole teeth extending from the base portion and which are disposed such that each of the pole teeth of one yoke and each of the pole teeth of the other yoke are arranged alternately in the circumferential direction. The pole teeth are shaped symmetric and each include a pair of slant sides inclined so as to become closer to each other with an increase of distance from the base portion, and the slant sides of adjacent pole teeth are located close to each other wherein a magnetic pole gap between the adjacent pole teeth pole teeth is about 0.2 times as large as the thickness of the pole teeth. | 02-24-2011 |
| 20110019865 | SPEAKER - A speaker includes an elongated diaphragm and a coupling member including forward and rearward segments, wherein at least two protrusions are provided at the rear side of the diaphragm along the major axis direction, the forward segment is engagingly disposed between the opposing end faces of two adjacent protrusions and also between the two portions of a rib of the diaphragm opposing each other in the minor axis direction, and wherein the outer circumferential surface of the voice coil bobbin is connected to the inner circumferential surface of the rearward segment, whereby the voice coil bobbin having a diameter larger than the dimension of the diaphragm measured along the minor axis direction can be successfully attached to the diaphragm. In the speaker described above, the diameter of the voice coil bobbin can be increased without decreasing the width of a surround thus enabling the withstanding of higher power input. | 01-27-2011 |
| 20100309587 | FLUID DYNAMIC BEARING, SPINDLE MOTOR HAVING THE FLUID DYNAMIC BEARING, AND STORAGE APPARATUS HAVING THE SPINDLE MOTOR - A fluid dynamic bearing is configured that a distance L | 12-09-2010 |
| 20100308679 | MICRO ROTOR AND ROTARY ELECTRIC MACHINE INCORPORATING SAME - A micro rotor is disclosed and includes a plurality of circular or annular plate-shaped thick film magnets which each include an isotropic magnet with a thickness t | 12-09-2010 |
| 20100302806 | Planar illumination device - A planar illumination device comprises a light guide plate, a point-like light source arranged on an incoming-light face of the light guide plate, an inner frame formed substantially in a U-shape on a top view, and an outer frame having a seat portion and side walls wherein the light guide plate is accommodated in the inner frame and mounted on the seat portion of the outer frame, while the point-like light source is arranged along the incoming-light face of the light guide plate and held between the incoming-light face and the side wall of the outer frame. At the inner frame, an elastic action portion which is elastically deformed so as to make a partial contact with the outer frame and energizes the light guide plate toward the point-like light source is provided. | 12-02-2010 |
| 20100296284 | SPREAD ILLUMINATING APPARATUS - A spread illuminating apparatus includes: a light guide plate including a plurality of protrusions disposed along a side surface thereof such that a plurality of interspaces are formed with each interspace being located between two adjacent protrusions; and a plurality of LEDs which include first row LEDs and second row LEDs disposed in two rows respectively at the interspaces and the protrusions. The distal portion of the protrusion has, at its top end surface, a width which is larger than the width of an opening area of the recess of a lamp house and also smaller than the overall width of the lamp house. The first and second row LEDs adjacent to each other are disposed such that respective lamp houses of two adjacent LEDs partly overlap with each other when viewed from the light emission direction. | 11-25-2010 |
| 20100245006 | RARE EARTH BONDED MAGNET - A rare earth bonded magnet is provided which is produced such that a mixture which comprises: a rare earth magnet powder; a resin binder comprising a thermosetting resin; an organic phosphorus compound; and a coupling agent is compress-molded, heated and cured, wherein the organic phosphorus compound and the coupling agent are represented by the following respective chemical formulas (structural formulas): | 09-30-2010 |
| 20100233975 | AUTOMATED POWER CONTROL TO OPTIMIZE POWER CONSUMPTION AND IMPROVED WIRELESS CONNECTION - A method for automatically adjusting signal output power of a ZigBee wireless module. The method includes sending a signal with an output power from a transmitter of a ZigBee module to a receiver. The ZigBee module includes a power amplifier/low noise amplifier (PA/LNA) circuit. The output power can be adjusted between a minimum level and a maximum level. Additionally, the method includes generating a Link Quality Indicator (LQI) by the receiver based on the signal strength and returning the LQI to the ZigBee module. If the LQI is not within a predetermined range between a maximum value and a minimum value, the method includes adjusting the output power for sending next signal. If the output power from the transmitter has reached to the minimum level or the maximum level, the method further includes adjusting the PA/LNA circuit of the ZigBee module for maintaining the LQI within the predetermined range. | 09-16-2010 |
| 20100219921 | RARE-EARTH IRON-BASED MAGNET WITH SELF-RECOVERABILITY - A rare-earth iron-based magnet with self-recoverability is provided and includes a plurality of segments, wherein the segments each include a matrix having a microstructure in which rare-earth iron-based aligned magnetic powders of at least one kind are solidified by a cross-linking reaction phase and also in which the cross-liking reaction phase and a viscous deformation phase resulting from on a viscosity flow are chemically bound to each other between the magnetic powders, and wherein while the inner and outer circumferential surfaces of the segments are constrained, the fracture surfaces of the segments, and also the segments on a needed-basis, are mutually aggregated and rigidified together by taking advantage of self-recovery function based on viscous deformation caused by heat and external force and also on cross-linking reaction. | 09-02-2010 |
| 20100213863 | Discharge Lamp Lighting Device - To provide a discharge lamp lighting device in which the initial state of discharge in a wiring of a circuit on the secondary side of a transformer in the discharge lamp lighting device is accurately detected and the operation thereof stops and which can be applied to a large-scaled liquid crystal display device. The discharge lamp lighting device according to the present invention includes a transformer | 08-26-2010 |
| 20100134906 | Actuator for lens driving mechanism - An actuator includes: a rotary shaft allowed to axially and including a threaded portion at a protruding portion thereof and two idle regions disposed respectively at both ends of the threaded portion; a movable structure adapted to travel along the rotary shaft; a stopper means facing the end of the protruding portion of the rotary shaft and configured to restrict the axial movement of the movable structure located at the idle region; an open space disposed between the stopper means and the end of the rotary shaft and configured to allow the rotary shaft to axially move; an urging means for urging the movable structure toward the motor; and a recovery means for urging the movable structure toward the threaded portion by a magnetic thrust force exerted by cutting off power supply to the motor when the movable structure is in contact with the stopper means. | 06-03-2010 |
| 20100102659 | Motor for driving color wheel - A motor for driving a color wheel includes: a main body including a rotor with a shaft, a housing having a cylindrical shape, and a front plate disposed at one axial end of the main body, from which one end portion of the shaft protrudes; a color wheel attachment structure fitted around the protruding end portion of the shaft; at least one position signal generating means disposed at a surface of the color wheel attachment structure facing the front plate; a relay board extending radially outwardly from inside the main body so as to protrude from the circumferential wall of the housing and functioning to guide out lead wires of windings of the motor; and a rotational position detecting means disposed at a portion of the relay board located inside the main body, and facing the position signal generating means thereby receiving a signal from the position signal generating means. | 04-29-2010 |
| 20100102645 | LINEAR DRIVE HAVING SHOCK COMPENSATION - A directly coupled linear drive having a drive unit and a sliding element that are disposed in a frame, the sliding element, actuated by the drive unit, being capable of effecting a movement in a direction of translation with respect to the frame and having a blocking device for blocking the sliding element in the frame in the event of a shock load to the sliding element, the blocking device having a body coupled to the sliding element that absorbs the shock load and is disposed such that the shock load of the body counteracts the shock load of the sliding element. | 04-29-2010 |
| 20100089735 | HAPTIC KEYBOARD APPARATUS AND METHOD - A haptic keyboard apparatus includes a membrane resistor keyboard device and a haptic device. The membrane resistor keyboard device includes a plurality of key switches, each of the key switches being responsive to touch by a user. The haptic device is coupled to the membrane resistor keyboard device. The haptic device includes a plurality of haptic cells, each of which is disposed under a corresponding key switch. Each of the haptic cells is configured to provide haptic feedback in response to the touch by the user. In a specific embodiment, the haptic keyboard apparatus also includes a processor and a haptic controller that provide control signals to the haptic device. In an embodiment, the control signals include programmable voltages and frequencies, causing the haptic cells to effect vibrational patterns in response to the control signals and provide haptic feedback to the user. | 04-15-2010 |
| 20100081538 | THRUST WASHER FOR A TRANSMISSION - A central thrust washer for all planets of a planetary carrier of a planetary gear that is geometrically designed such that it engages in recesses in the annulus gear or the drive wheel or is connected to planetary wheel bearings of the planetary carrier so as to prevent any relative movement. For this purpose, at least one fixing element is provided on the thrust washer. | 04-01-2010 |
| 20100066279 | Method and Apparatus of Fan Motor Brake - An electronic system for controlling a fan motor includes a microcontroller and a drive circuit. The microcontroller draws power from a first voltage source and generates control signals for sending drive current to stator coils of a fan motor via the drive circuit. The electronic system further includes a second voltage source to provide the microcontroller with an amount of energy sufficient to operate for a short period of time when the voltage of the first voltage source drops below a predetermined level. The microcontroller is configured to detect when the voltage level of the first voltage source drops below a given level and generates control signals for the drive circuit to discharge energy in the stator coils of the fan motor to quickly stop operation of the fan motor within a short period of time. | 03-18-2010 |
| 20100053631 | Fiber optic gyroscope with auxiliary function - A fiber optic gyroscope includes first and second gyroscopes. The first gyroscope includes: a first light source for emitting two lights; a first optical fiber loop which includes a sensor coil structured such that an optical fiber is wound in a multilayer manner, through which the two lights travel in opposite directions, and which constitutes a laser resonant circuit with the first light source; and a first optical detector for detecting an angular velocity based on a beat frequency which is produced by the two lights. The second gyroscope includes: a second light source for emitting light; an optical distributor for dividing the light into two lights; a second optical fiber loop through which the two lights travel in opposite directions and enter both respective ends of the sensor coil; and a second optical detector for detecting an angular velocity based on a phase difference between the two lights. | 03-04-2010 |
| 20100046000 | Semiconductor ring laser gyroscope - A semiconductor ring laser gyroscope includes: a semiconductor laser for emitting two lights from both end surfaces thereof; an optical fiber ring through which the two light propagate in the respective opposite directions, which, in association with the semiconductor laser, constitutes a laser resonator, and which includes a sensor coil made of an optical fiber wound in a multilayer manner; and an optical detection unit for detecting a rotational angular velocity based on beat frequencies of the two lights, wherein an expression: 2ΔF | 02-25-2010 |
| 20100043206 | Method of manufacturing rotor magnet for micro rotary electric machine - A method of manufacturing a rotor magnet for a micro rotary electric machine is provided which includes steps of: a process in which a plurality of thick films, each of which is made of nanocomposite texture composed of αFe and R-TM-B where R is either 10 to 20 atomic % Nd or 10 to 20 atomic % Pr, B is 5 to 20 atomic % and TM is either Fe or partly Co-substituted Fe with 0 to atomic %, are formed into a laminated magnet including isotropic nano-crystalline texture which contains αFe and R | 02-25-2010 |
| 20100007230 | Motor with sheet-like coil - A spindle motor includes: a stator yoke having a circular cylinder shape; a rotor magnet disposed opposite to the stator yoke with an air gap therebetween; a sheet-like coil disposed at a surface of the stator yoke opposing the rotor magnet; and a bearing structure, wherein the sheet-like coil includes a plurality of individual coils having a spiral-shape and arrayed in a circumferential direction, and a pattern made of a same material as the individual coils and disposed between two adjacent individual coils. | 01-14-2010 |
| 20090322249 | METHOD FOR CONTROLLING A HIGH-FREQUENCY TRANSFORMER - A method for controlling a high-frequency transformer by which the acoustic transformer noises occurring during intermittent operation (burst operation) are reduced. This is achieved according to the invention by halving a length of the first and the last pulse of an AC voltage pulse train or the first and the last half-wave in the ON interval (Tn). This goes to avoid magnetizing peaks in the core that cause a major part of the background noise. | 12-31-2009 |
| 20090321039 | TELECOM SHELTER COOLING AND CONTROL SYSTEM - A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these. | 12-31-2009 |
| 20090316434 | Planar illumination device - A planar illumination device comprises a light guide plate, a point-like light source arranged on an incoming-light face of the light guide plate, an inner frame formed substantially in a U-shape on a top view, and an outer frame having a seat portion and side walls wherein the light guide plate is accommodated in the inner frame and mounted on the seat portion of the outer frame, while the point-like light source is arranged along the incoming-light face of the light guide plate and held between the incoming-light face and the side wall of the outer frame. At the inner frame, an elastic action portion which is elastically deformed so as to make a partial contact with the outer frame and energizes the light guide plate toward the point-like light source is provided. | 12-24-2009 |
| 20090315504 | LINEAR ACTUATOR MOTOR SELECTION METHOD AND DEVICES - A method of selectively utilizing a set of linear actuator motors for an application includes providing a plurality of linear actuator motors numbered from 1 to N including a box shaped housing with respective lengths between a first end-plate and a second end-plate and respective hollow shafts. Each hollow shaft includes an extended portion out of either the first end-plate or the second end-plate and configured to receive a nut including a tube part integrally connected with a flat-end part. The nut is configured to be able to mate in a common manner to any of the plurality of linear actuator motors. The method further includes testing any of the plurality of linear actuator motors including the nut for the application, wherein the nut is detached from one linear actuator motor to reattach with another linear actuator motor. | 12-24-2009 |
| 20090310300 | Flow-Through Air Conditioning for Electronics Racks - A cabinet adapted with a cooling system is described. Embodiments include electronics cabinets which house electronic equipment. A flow of air is set up in the interior of the cabinet by drawing in ambient air. The incoming air is cooled by an evaporator component of a cooling system. The cooled air cools the electronics and in the process becomes heated air. The heated air serves to cool a condenser component of the cooling system, thereby further heating the heated air. The heated air is then exhausted from the cabinet. | 12-17-2009 |
| 20090309435 | Integrated Air Mover and Angular Position Sensor on Electric Motor - Embodiments of the present invention provide an integrated air-mover and position sensor for an electric motor. One or more fins may be attached to a position sensor and adapted to generate a movement of air when the position sensor rotates with a rotor shaft. Such an arrangement not only allows the position sensor to sense positions of the electric motor, but also provides air-cooling functions for cooling the motor driver efficiently, thus improving product reliability. The position sensor may be an optical encoder or a capacitive sensor. Alternatively, one or more fins may be disposed within the electric motor and attached directly onto a rotor shaft of the electric motor to create a movement of air for cooling the motor driver directly and efficiently. | 12-17-2009 |
| 20090300913 | Method for connecting tab pattern and lead wire - A method is for connecting a tab pattern formed on a base sheet and a lead wire, wherein the tab pattern includes: a tab main portion; and a connecting portion formed to continue from one edge line of the tab main portion and to extend from the tab main portion along an extension line that is substantially orthogonal to the edge line, and wherein the method includes: connecting the lead wire on the tab main portion by bonding the lead wire at a position being displaced from the extension line of the connecting portion for more than a given offset amount where the extension line is identical to a center line of the connecting portion, the position being within a given distance from the edge line of the tab main portion. | 12-10-2009 |
| 20090299544 | System and method for fan tray control and monitoring system - System and method for fan tray control and monitor system. According to an embodiment, the present invention provides a fan control system. In the fan control system, one or more fan tray is housed inside a chassis, which provides power to the fan tray. The fan tray includes a communication interface for connecting to a controller module that is external to and separate from the chassis. Through the controller module, a user is able to view information associated with the fan tray. In addition, the user is able to adjust various fan tray parameters through the controller module. | 12-03-2009 |
| 20090290822 | Aerospace Bearing Component - An aerospace bearing component of a substantially non-ferrous metal, the component comprising an oxygen diffusion zone near its surface to provide a bearing surface. | 11-26-2009 |
| 20090289556 | Discharge lamp lighting apparatus for lighting multiple discharge lamps - A discharge lamp lighting apparatus for lighting multiple discharge lamps is provided in which two step-up transformers to apply AC voltages to two discharge lamp groups are mounted on a circuit board, and an antenna pattern is disposed on the circuit board so as to extend under both secondary windings of the step-up transformers and has its one end electrically connected to a tank circuit of a protection circuit, wherein the resonance frequency of the tank circuit is set to a frequency corresponding to five times the driving frequency of the step-up transformers, and the fifth-order high harmonic component is extracted from a signal induced in the antenna pattern, and when the signal extracted by the tank circuit exceeds a predetermined value, the output side of the step-up transformers is determined to be in an open state and the step-up transformers are stopped from being driven. | 11-26-2009 |
| 20090284088 | OPTIMIZED STATOR MOUNTING METHOD TO PRINTED CIRCUIT BOARD - A stator assembly detachably mounted with a fan housing. The stator assembly includes a stator including one or more first mounting feet and one or more second mounting feet disposed apart from each other. Additionally, the stator assembly includes a printed circuit board (PCB) having one or more first openings and a fan housing having a base member fixed to a bearing liner. The base member includes one or more second openings disposed about the bearing liner. The stator is coupled to the PCB into a stator-PCB assembly with each of the one or more first mounting feet being locked with one of the one or more first openings. The stator-PCB assembly is center-aligned with respect to the bearing liner and coupled to the fan housing with each of the one or more second mounting feet locked with one of the one or more second openings. | 11-19-2009 |
| 20090267442 | Stator assembly - A stator assembly is provided and includes a laminated core and a one-part insulator having cover walls for covering edges of the laminated core, wherein first projections and a second projection both having a height smaller than the difference between the height of the cover walls and the thickness of the laminated core are formed on one side surface of the insulator in such a manner as to make contact with a part of one axial end side surface of the laminated core, whereby a gap which corresponds to the projection distance of the first and second projections and which serves as a clearance space for chips scraped by the edges of the laminated core from the surfaces of the cover walls is provided between the insulator and the laminated core, resulting in ensuring that the insulator is snap-fitted on the laminated core in good shape. | 10-29-2009 |
| 20090263238 | DUCTED FAN WITH INLET VANES AND DESWIRL VANES - A fan apparatus includes a ducted housing with an axis of rotation including a first section and a second section. The fan apparatus further includes a first plurality of vanes being radially coupled within the first section and a second plurality of vanes being radially coupled within the second section. Additionally, the fan apparatus includes an impeller with a plurality of blades rotatably disposed within the ducted housing between the first plurality of vanes and the second plurality of vanes for rotary motion about the axis of rotation. The first plurality of vanes are stationary in a first arrangement to guide an inflow of air towards the impeller. The plurality of blades are rotary in a second arrangement to have a rotational direction substantially opposite to the inflow of air guided by the first arrangement. The second plurality of vanes are stationary in a third arrangement to diffuse an outflow of air substantially along the axis of rotation. | 10-22-2009 |
| 20090263232 | COMPACT AIR COOLING SYSTEM - An apparatus for air cooling an object. The apparatus includes a plate including a first surface and a second surface and a plurality of aerodynamic fins being fixedly disposed on the first surface in an arrangement along periphery of the plate. The arrangement of the plurality of aerodynamic fins defining a central volume of space. Additionally, the apparatus includes a blower including a plurality of impeller blades rotatably disposed within the central volume of space for rotary motion about an axis of rotation. In particular, the second surface is for thermally contacting with the object and the axis of rotation is substantially perpendicular to the first surface. Furthermore, the rotary motion of the blower creates an air inflow along the axis of rotation into the central volume of space and an air outflow through the plurality of aerodynamic fins in radial directions. | 10-22-2009 |
| 20090257876 | Blower Impeller with Partial Tip Blockage - According to embodiments of the invention, an impeller includes a hub, and a plurality of radial blades for drawing the air inflow axially through the hub and delivering the drawn air radially towards the outside. A ring is attached to one or more tips of the plurality of radial blades to block a portion of the tip toward the inlet side of the impeller. The preferred blockage factor, which is the ratio of a height of the ring to a height of the tip, is approximately in a range between 30% and 40%. By blocking a portion of the tip toward the inlet side of the impeller, the low-momentum flow zone toward the inlet side of impeller is blocked, while the high-momentum flow zone toward the back side of impeller is enhanced. As such, the performance of the impeller is enhanced. | 10-15-2009 |
| 20090256515 | Method of detecting state of synchronization loss in stepping motor - In a method of detecting synchronization loss in a stepping motor, a means for applying either control current or control voltage to a coil of each phase to thereby drive a stepping motor and a means for individually measuring a back EMF voltage induced at the coil of each phase are employed, wherein application of either the control current or the control voltage at the coil of each phase is halted by turns phase by phase for such a short time period as not to affect rotation of a rotor of the stepping motor at a predetermined timing within one step period of the rotor, the back EMF voltage at the coil is measured during the short time period, and the stepping motor is judged to lose synchronization when the measurement result of the back EMF voltage at the coil of at least one phase satisfies a detection criterion. | 10-15-2009 |
| 20090251085 | METHOD AND SYSTEM FOR MOTOR OSCILLATORY STATE DETECTION - Method and system for motor oscillatory state detection. According to various embodiments, the present invention presents a method for determining whether a motor is in an oscillatory state. The method includes powering up a motor for a period of time and then monitoring the movement of the motor during a period after the power if turned off. Based on the movement of the motor and/or impeller during a time period after the power is turned off, whether the motor is in an oscillatory state is determined. The method also includes initiating a process for handle error if the motor is in the oscillation state. | 10-08-2009 |
| 20090243435 | ELECTROMECHANICAL MOTOR - The invention relates to an electromechanical motor having a stator that has a drive unit and a frame component in which the drive unit is held, and a sliding element that is constructed such that, actuated by the drive unit, it performs a movement with respect to the stator in a direction of translation, wherein the drive unit has at least one electromechanical drive element that extends in the direction of translation and a power transmission element that is constructed so as to transmit a movement of the drive element to the sliding element. The sliding element has a supporting component and a drive rail, the drive rail extending in the direction of translation and interacting with the power transmission element and the drive rail being held at both its end faces in the supporting component, and between the supporting component and the frame component of the stator, there is a bearing for supporting the sliding element in the frame component. | 10-01-2009 |
| 20090243434 | SHOCK RECOGNITION SYSTEM IN A DOORLOCK - An electromechanical motor, comprising a stator, including a drive unit and a frame portion, the frame portion holding the drive unit. The motor includes a shuttle adapted to be moved relative to the stator in a displacement direction, the shuttle movement being controlled by the drive unit and where the drive unit comprises at least one electromechanical drive element, extending along said displacement direction, and a drive body adapted to transfer a movement of the drive element onto the shuttle. The motor includes a sensor connected to the drive element and adapted to sense an electric or magnetic signal generated by the drive element in response to mechanical stress being applied to the drive element and to output a sensor signal. | 10-01-2009 |
| 20090237592 | Planar Illumination Device - Thinning of a planar illumination device using LEDS is accelerated while higher and more uniform brightness is promoted. A planar illumination device | 09-24-2009 |
| 20090230869 | Transformer - To provide a transformer in which costs of a backlight device are reduced by lighting a lamp without requiring an additional member for connecting the lamp to an inverter. A transformer according to the present invention includes terminal bases and in which terminal pins are implanted, a bobbin formed by winding a primary winding and secondary windings and around the outer circumference of a winding core, and a core. A lamp connecting terminal is arranged to the terminal bases and, and an electrode of a lamp is directly connected to the lamp connecting terminal, thereby attaching the lamp to the terminal bases and. The transformer is integrated into an inverter for a backlight device of a liquid crystal display apparatus, thereby lighting the lamp without using an additional member for connecting the lamp to the inverter. | 09-17-2009 |
| 20090211888 | MULTI-ILLUMINATING KEYBOARD BACK LIGHT AND METHOD - A keyboard apparatus includes a housing which includes a plurality of key pads spatially disposed within the housing, each of the key pads being depressible upon touch by a user, the plurality of key pads being distributed in a plurality of non-overlapping keyboard regions. Each of the non-overlapping regions includes fewer than all of the plurality of keypads. An optically transparent circuit board is coupled to a backside of each of the key pads. In a specific embodiment, a plurality of electroluminescent segments are arranged in a non-planar configuration. Each of the plurality of electroluminescent segments includes one of a corresponding plurality of power supply devices. Each of the plurality of electroluminescent segments provides electromagnetic radiation to a respective non-overlapping keyboard region for lighting key pads in the respective non-overlapping keyboard region. Each of the non-overlapping regions includes fewer than all of the plurality of keypads. | 08-27-2009 |
| 20090207630 | Planar illumination device - More efficient radiation of heat from a point-like light source is enabled, and thinning is promoted, while higher and more uniform brightness of a planar illumination device is accommodated. A radiation path is formed through which the heat generated from the point-like light source is transmitted to a radiator plate made of metal through an electrode terminal of the point-like light source, a land portion of a front side face of an FPC, a through hole of a conductor pattern, and a high heat-conductive resin. The radiation path for efficient radiation from a conductor pattern of the FPC to the radiator plate made of metal is extended, and direct radiation area is sufficiently ensured. Particularly even if a large-current type LED is used for the point-like light source, sufficient radiation effect can be obtained. Also, since freedom in wiring pattern on the FPC and freedom of outline are not different from a conventional FPC at all, a demand for thinning of the planar illumination device can be sufficiently satisfied. | 08-20-2009 |
| 20090201699 | Planar Illumination Device and Manufacturing Method of Same - A planar illumination device in which workability of a filling work of a heat conduction agent is improved and a heat generated from a point-like light source is efficiently radiated so as to achieve high brightness. In a planar illumination device | 08-13-2009 |
| 20090160355 | Discharge Lamp Lighting Apparatus - There is provided highly efficient discharge lamp lighting apparatus capable of reducing its cost by reducing high withstand voltage components on the secondary side of a high voltage transformer and stabilizing, its circuit operation. A discharge lamp lighting apparatus ( | 06-25-2009 |
| 20090160277 | Fluid Dynamic Pressure Bearing - A fluid dynamic bearing ( | 06-25-2009 |
| 20090155076 | Shrouded Dual-Swept Fan Impeller - A fan impeller includes rotating ring attached to the tip of dual-swept fan blades. Besides shrouding the impeller; the blades are dual-swept forward, and sweep increases in magnitude towards the tip. The shrouded dual-swept impeller resides inside classical fan housing. The integrated effects of shrouding the impeller, forward sweep into the direction of incoming flow, and forward sweep into the direction of rotation (circumferential forward sweep) render the fan quiet; the magnitude of noise reduction is between 7 and 12 dB. | 06-18-2009 |
| 20090155060 | Integrated Fan with Pump and Heat Exchanger Cooling Capability - Disclosed is a compact and integrated fan, pump, and heat exchanger system where air-cooling is performed via the fan, liquid cooling is performed via a pump, and the drilled pump diffusers act as a heat exchanger. The pump has drilled diffusers through which liquid passes into the volute, the drilled diffusers are streamlined and thus act as fan stator blades. Hot liquid is centrifuged and carried inside the drilled diffusers while air flows around the outside surfaces of the drilled diffusers. A heat transfer occurs where heat transfers from the hot liquid into the air stream. | 06-18-2009 |
| 20090154906 | System and Method for Controlling Multiple DC Fans - A system and method for controlling multiple cooling fans is presented. The circuitry for directly driving each of the motors is removed from the motor casings, thus increasing air flow and reducing replacement costs should a motor fail. The system includes a common processor for centrally controlling the speeds of the motors and monitoring the performance of each of the multiple motors. | 06-18-2009 |
| 20090154905 | Single Output H-Bridge Drive - Disclosed is a drive circuit for generating the drive current used to energize the windings of a motor. The drive circuit includes a data processing unit that produces two outputs used to control an H-bridge and generation of the drive current. One output, a commutation signal, controls the timing of generation of drive current. The drive current in turn is determined based on the other output, a speed signal. The speed signal waveform includes blanking portions to avoid occurrences of shoot through in the H-bridge. | 06-18-2009 |
| 20090154202 | Backlight inverter and method of driving same - A backlight inverter is provided which includes at least one inverter transformer and to which a plurality of cold cathode fluorescent lamps are connected, wherein a plurality of primary windings of the inverter transformer are connected to each other either in series or in parallel, a resonance circuit including a leakage inductance and a capacitance component is formed at the secondary side of the inverter transformer, and wherein the inverter transformer is driven at an operating frequency which is included in a frequency range between a parallel resonance frequency and a series resonance frequency of the resonance circuit and which excludes a frequency range between a first inflection point and a second inflection point of a gain characteristic curve of the inverter transformer. | 06-18-2009 |
| 20090148294 | Houseless fan with rotating tip ring as silencer - The stationary housing of a conventional fan assembly is replaced with a rotating tip ring. The rotating tip ring has a shaped cross-sectional profile to enhance performance and eliminate tonal noise associated with the fundamental (or blade passing) frequency and its harmonics. | 06-11-2009 |
| 20090148085 | Bearings - According to one aspect of the present invention there is provided a method of manufacturing a bearing comprising the steps of providing a bearing housing incorporating a recess therein, the recess comprising a cup section shaped to receive part of a bearing member and a conforming section, extending from the cup section and incorporating the open end of the recess, the conforming section meeting the cup section at a transition boundary, inserting a pre-formed, continuous, liner through the open end to sit in the recess, the liner being chosen to approximately conform to the initial shape of the recess when inserted therein, inserting a bearing member into the recess through the open end such that the liner is positioned in between the surfaces of the bearing member and recess, deforming the bearing housing in such a way that the recess and liner each conform to the shape of the bearing member and the area of the open end of the recess is reduced in size to prevent removal of the bearing member from the housing during normal use of the bearing. | 06-11-2009 |
| 20090135623 | Spread illuminating apparatus - A spread illuminating apparatus is provided where: a light introducing prism mechanism is formed at a light entrance surface of a light guide plate wherein the prism mechanism includes a plurality of prism pieces extending in the thickness direction of the light guide plate and including first and second light incidence faces which have respective different inclination angles relative to the light entrance surface such that the first and second light incidence face are inclined relative to the light incidence surface at an angle ranging from 0 degree to 30 degrees and at an angle ranging from 45 degrees to 90 degrees; a light emitting pattern is formed at the bottom surface of the light guide plate such that prisms are continuously disposed in a step-like manner in the direction perpendicular to the light entrance surface; and a light diffusing pattern is formed at the top surface of the light guide plate such that arc prisms are disposed in the direction parallel to the light entrance surface. | 05-28-2009 |
| 20090134972 | METHOD AND SYSTEM FOR BIOMETRIC KEYBOARD - A method for training a computing system using keyboard biometric information. The method includes depressing two or more keys on a keyboard input device for a first sequence of keys. The method then determines a key press time for each of the two or more keys to provide a key press time characteristic in the first sequence of keys. The method also determines a flight time between a first key and a second key to provide a flight time characteristic in the first sequence of keys, the first key being within the two or more keys. The method includes storing the key press time characteristic and the flight time characteristic for the first sequence of keys, and displaying indications associated with the first sequence of keys on a display device provided on a portion of the keyboard input device. | 05-28-2009 |
| 20090097254 | Planar Lighting Device - A planar lighting device in which workability of filling process of filler for heat radiation is improved and heat generated from a point-like light source is efficiently radiated so as to achieve higher brightness is provided. | 04-16-2009 |
| 20090097240 | Spread illuminating apparatus - A spread illuminating apparatus is provided in which a light source assembly disposed at one side surface of a light guide plate includes red LEDs, green LEDs and blue white LEDs. The blue white LEDs each include a blue LED and a yellow phosphor and are adapted to emit a red component light and a green component light as well as a blue light. The blue white LED functions not only as a light source for blue light but also as a light source for red and green lights, whereby the numbers of the red LEDs, the green LEDs and the blue white LEDs are equalized. All the LEDs are arranged along the one side surface of the light guide plate at substantially regular intervals. Color heterogeneity generated when a plurality of kinds of LEDs are used is reduced, and thereby an area required for mixing colors is reduced. | 04-16-2009 |
| 20090096561 | Rare earth bonded magnet and production method thereof - In order to achieve excellent heat resistance, durability and weatherability for use in an extended range of temperature environments, a rare earth bonded magnet is formed such that a material mixture comprising: a rare earth magnetic powder having a particle diameter ranging from 30 μm to 500 μm; a resin binder constituted by a thermosetting resin; and an organic phosphorous compound, is compression-molded and hardened, wherein the organic phosphorous compound is uniformly dispersed in the resin binder. | 04-16-2009 |
| 20090091262 | Discharge lamp lighting apparatus - There is provided a discharge clamp lighting apparatus including: a transformer, a transformer driving circuit, a control circuit, in which a primary side of the transformer is driven by the transformer driving circuit lighting a discharge lamp connected at a secondary side of the transformer, a discharge sensing circuit, a signal detecting circuit detecting a voltage signal induced in the discharge sensing circuit, and a protection means stopping supply of electric power to the secondary side of the transformer according to the voltage signal detected at the signal detecting circuit, wherein the signal detecting circuit includes a signal discriminating circuit attenuating a component of a voltage signal inputted from the discharge sensing circuit, the component having a frequency equal to or lower than a predetermined value, to be equal to or greater than a secondary high-frequency pass filter, passing only a high-frequency signal caused by an abnormal discharge. | 04-09-2009 |
| 20090079593 | Keyboard apparatus, electronic apparatus, and method of producing the keyboard apparatus - A keyboard apparatus includes: a plurality of keys; a switching section that detects depression of each of the keys; a top cover that is integrally formed with a partitioning portion separating adjacent keys from each other; a frame member that includes a plurality of key receiving portions which, in a case where the frame member is attached to the top cover, support the keys in a manner that the keys are placed in spaces surrounded by the partitioning portion; a first coupling section that couples the top cover with the frame member; and a second coupling section that couples a first surface portion of the keyboard apparatus including the switching section, with a second surface portion of the keyboard apparatus including the top cover and the frame member with which the top cover is coupled by the first coupling section. | 03-26-2009 |
| 20090067153 | BACKLIGHTED KEYBOARD AND METHOD USING PATTERNED LIGHT GUIDE - A keyboard apparatus. The apparatus has a housing including a plurality of key pads, including at least twenty six key pads spatially disposed within the housing. Each of the key pads is depressible upon touch by a user. An optically transparent circuit board is coupled to a backside of each of the key pads. The apparatus has a light guide characterized by a planar optically transparent material having a surface region, a width, a length, and a backside region, and a thickness provided between the surface region and the backside region. The apparatus has a plurality of patterns disposed on the surface region and optically coupled respectively to each of the twenty six key members. In a specific embodiment, the apparatus has a light emitting diode provided within a center region of the surface region to emit electromagnetic radiation. The electromagnetic radiation propagates from the light emitting diode through a portion of the thickness of the light guide to one or more of the plurality of patterns to direct one or more portions of the electromagnetic radiation to respective key pads for lighting the respective key pads. | 03-12-2009 |
| 20090066834 | Iris diaphragm device - There is provided an iris diaphragm device comprising: two blade members supported on two rotary shafts; a lamp optical path between the two blade members; a motor driving directly one of the rotary shafts; and a means of transmitting power from the one rotary shaft to the other, wherein the motor and the means are disposed off the lamp optical path, and the two blade members revolve respectively to the two rotary shafts whereby a blocked area of the lamp optical path is adjusted, and wherein a magnetic sensor including a plate-like magnetic sensing portion and a plate-like magnet and detecting a rotation angle of the rotary shafts is disposed on an axis line of one of the two rotary shafts and also off the lamp optical path such that facing surfaces of the magnetic detecting portion and the magnet are orthogonal to the rotary shafts. | 03-12-2009 |
| 20090066196 | Stepping motor - A stepping motor includes: a stator which includes a cup-like first (outer) yoke having a plurality of notches formed at its bottom plate, a second (inner) yoke, and a bobbin having a coil wound therearound and housed in the annular hollow space formed by the first and second yokes; and a pair of bearings each of which includes a hollow-cylindrical main body and a flange structure having a plurality of protrusions, and is attached to the stator such that the protrusions engage with the notches of the first yoke thereby preventing the bearing from rotating relative to the first yoke, and such that the protrusions make contact with a flange of the bobbin thereby precisely positioning the bearing relative to the first yoke with respect to the axial direction, which prohibits any portions of the bearing from protruding axially outwardly beyond the bottom plate of the first yoke. | 03-12-2009 |
| 20090051471 | Long-proportional-stroke force motor - There is provided a long-proportional-stroke force motor whose force vs. stroke characteristic provides a long stroke in which a constant force is output proportional to the exciting current in magnitude without involvement of problems in actual use, and which does not impose any limitations on the stroke so as to effectively use the stroke. | 02-26-2009 |
| 20090040785 | Spread illuminating apparatus - A transparent resin plate includes a plurality of slits formed intermittently and located along the border line between a housing frame portion and a light conductor plate portion, the slits includes either or both of respective first optical path converting portions and a second optical path converting portion, and flap portions of a reflector are inserted at least in the first optical path converting portions. Also, the second optical path converting portion of the plurality of slits is arranged to meet at least part of optical paths of hypothetical optical paths which are emitted forward from a light source in the forward direction, reach directly the housing frame portion and which do not cross the first optical path converting portion. | 02-12-2009 |
| 20090016080 | Planar Lighting Apparatus - Higher brightness of a planar lighting apparatus is promoted by improving close contact between a light-emitting face of an LED and a side end face of a light guide plate. | 01-15-2009 |
| 20090016079 | Planar lighting apparatus - A planar lighting apparatus is provided in which thinning is promoted while higher and more uniform brightness is achieved by maintaining an LED on a light-incoming face of a light guide plate easily and stably. A planar lighting apparatus | 01-15-2009 |
| 20090015180 | Discharge lamp lighting apparatus - A discharge lamp lighting apparatus includes an input power supply, a power supply circuit, a bridge circuit having switching elements Q | 01-15-2009 |
| 20090002200 | MULTI-SEGMENT BACKLIGHT SYSTEM AND METHOD FOR KEYBOARDS - An electroluminescent apparatus includes a protection layer characterized by two or more non-overlapping regions and a back electrode layer which includes two or more back electrode regions. Each of the back electrode regions overlies a corresponding one of the non-overlapping regions in the protection layer. A bottom insulation layer includes two or more bottom insulation regions, each of which overlying a corresponding one of the back electrode regions. The apparatus includes two or more electroluminescent segments, each of which overlying a corresponding one of the back electrode layers. A transparent electrode layer includes two or more transparent electrode regions, each overlying a corresponding one of electroluminescent segments. The apparatus includes two or more power supply devices, each of which coupled to a corresponding one of the back electrode regions and to a corresponding one of the transparent electrode regions for providing luminescence over a corresponding one of the non-overlapping regions. | 01-01-2009 |
| 20080316772 | Spread illuminating apparatus, transparent resin plate for use in spread illuminating apparatus, and method of injection-molding transparent resin plate - A spread illuminating apparatus of side light type includes a transparent resin plate integrally composed of a light conductor plate portion and a housing frame portion, a light reflecting sheet, and a light source, wherein an opening for housing the light source is provided at a side portion of the transparent resin plate, slits are provided along a boundary between the light conductor plate portion and the housing frame portion, and wherein a gate for injecting resin into a molding die cavity for the transparent resin plate is positioned outside the boundary of the light conductor plate portion and the housing frame portion and is positioned also between the opening and one of slits which are provided toward the side portion of the transparent resin plate having the opening and which are located clear of the opening. | 12-25-2008 |
| 20080316769 | Spread illuminating apparatus - A spread illuminating apparatus includes an LED, a transparent resin plate and a light reflecting sheet, wherein the transparent resin plate includes slits adapted to have inserted therein flap portions of the light reflecting sheet, and wherein an adhesive tape with flexibility is placed along at least one flap portion of the light reflecting sheet so as to cover at least one slit of the transparent resin plate, whereby the light reflecting sheet is prevented from warping or undulating in spite of difference in thermal expansion coefficient between the materials of the transparent resin plate and the light reflecting sheet, and also whereby light emitted from the LED and traveling in the transparent resin plate is totally reflected by the flap portions and therefore prevented from leaking from the outer side surfaces of the transparent resin plate. | 12-25-2008 |
| 20080298086 | Spread illuminating apparatus - A spread illuminating apparatus includes a light source, a light conductor plate having the light source at a side surface thereof, and a frame to house the light conductor plate, wherein the frame is basically composed of a metal core member and a resin body member which has an enclosed structure and which has recesses at outer surfaces of the enclosed structure. | 12-04-2008 |
| 20080279492 | Fluid Dynamic Bearing Mechanism - A fluid dynamic bearing mechanism that can ensure bearing rigidity, reduce shaft loss torque, reduce power consumption, stabilize axial rotation, and improve rotational accuracy is disclosed. The fluid dynamic bearing mechanism being suitable for use in a hard disk drive. In the fluid dynamic bearing mechanism (equipped with a bearing case, endplate, and shaft) a cylindrical hole of the bearing case is changed to a stepped cylindrical hole that has a large diameter part and a small diameter part. The shaft is changed to a stepped shaft that has a large diameter part and a small diameter part. On the outer circumference of either the large diameter part of the stepped cylindrical hole, or the large diameter part of the stepped shaft, a first dynamic pressure groove is be formed. On the outer circumference of either the small diameter part of the stopped cylindrical hole or the small diameter part of the stepped shaft, a second dynamic pressure groove is being formed. On the surface of step part of the stepped cylindrical hole, the third dynamic pressure groove is formed. The small gaps that face each of the three dynamic pressure grooves are filled with a dynamic pressure generating lubricating oil. | 11-13-2008 |
| 20080266881 | Spread illuminating apparatus - A spread illuminating apparatus of side light type includes a transparent resin plate, a reflector disposed at one major surface of the transparent resin plate, and a light source disposed in a light source space formed toward one end of the transparent resin plate, wherein the reflector includes a main part having a rectangular shape and fold parts formed at peripheral edges of the main part so as to rise up therefrom, slits are formed through portions of the transparent resin plate located inside and off its peripheral edges, and wherein the fold parts of the reflector are inserted though the slits of the transparent resin plate. | 10-30-2008 |
| 20080258640 | Discharge lamp lighting apparatus - A discharge lamp lighting apparatus includes: an inverter circuit; a lamp current detecting portion; and a burst mode control circuit which includes a noise reduction circuit including: an error amplification circuit to receive a feedback signal from the lamp current detecting portion; and a frequency response reduction circuit connected to the error amplification circuit, wherein the frequency response reduction circuit receives a dimming pulse signal for the burst mode dimming control, and the response characteristic of the noise reduction circuit is lowered while the dimming pulse signal is outputted, whereby the lamp current waveforms is suppressed from making a sharp change at the time of burst dimming control. | 10-23-2008 |
| 20080247071 | Color wheel with segment fixing mechanisms, and manufacturing method of same - A color wheel comprises sectorial color filter segments and a support member. Protrusions are disposed at the support member and engaged with either through-holes or cavities as segment fixing mechanisms formed at the color filter segments, whereby the color filter segments are fixedly positioned with respect to the support member in the radial direction. Consequently, the color filter segments can be surely prevented from getting scattered off when the color wheel spins at high speed. | 10-09-2008 |
| 20080231140 | ELECTRIC MACHINE HAVING CLAW POLE STATOR - The present invention relates to an electric machine having a claw pole stator, comprising: a first and a second claw pole plate each of which has a yoke and pole claws, the pole claws connected to the yoke via a base and the claw pole plates being disposed coaxially with respect to one another such that a pole claw rim is formed from the pole claws, the pole claws rim defining a rotor-side boundary of a space for receiving a cylindrical coil, wherein a circular line is defined, whose center coincides with the center of the rotation axis, the circular line intersecting the center point of the baseline of at least one pole claw and having a tangent at this center point, wherein an angle a is formed between this tangent and a straight line connecting the two outer points of the baseline, where α≠0. In an alternative embodiment, the pole claws are twisted with respect to their baselines. | 09-25-2008 |
| 20080211616 | Inverter transformer having bobbin with protected terminal pins - An inverter transformer includes a core structure, bobbins each including a spool portion and first and second terminal blocks and having a part of the core structure inserted therein, and primary and secondary windings wound around the bobbin, wherein the first and second terminal blocks have recesses formed at their end faces and adapted to lodge terminal pins to tie wire ends of the secondary winding therearound, the distal tip ends of the terminal pins lodged in the recesses of the first and second terminal blocks are positioned either flush with or inward of the end face of the first and second terminal blocks, parts of the core structure are located above the recesses, and the end faces of the core structure oriented substantially orthogonal to an extending direction of the terminal pins are positioned either flush with or outward of the distal tip ends of the terminal pins. | 09-04-2008 |
| 20080211423 | Multiple-Light Discharge Lamp Lighting Device - To provide a multiple-light discharge lamp lighting device that stabilizes and equalizes tube current of a plurality of discharge lamps without arranging a Ballast element to the secondary side of an inverter transformer with low costs. A multiple-light discharge lamp lighting device | 09-04-2008 |
| 20080205079 | Spread illuminating apparatus and display device incorporating same - A spread illuminating apparatus is provided which includes: a light conductor plate having a light inlet surface and two major surfaces; a light source unit disposed at the light inlet surface of the light conductor plate; and a light diffuser pattern disposed at the lower major surfaces of the two major surfaces of the light conductor plate, wherein the light source unit includes first and second white light sources which have respective different light emitting principles, are arranged in the width direction of the light conductor plate with their respective ends set close to one another, and which can be turned on and off independently of each other. | 08-28-2008 |
