Patent application number | Description | Published |
20110140197 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - According to one embodiment, a semiconductor device includes a first semiconductor layer of a first conductivity type, a second semiconductor layer, a third semiconductor layer, a fourth semiconductor layer, first trenches, a second trench, an insulating film, a gate electrode, a first main electrode, a second main electrode, a channel stopper layer and a channel stopper electrode. The second semiconductor layer of the first conductivity type is provided on the first semiconductor layer. The third semiconductor layer of a second conductivity type is provided on the second semiconductor layer. The fourth semiconductor layer of the first conductivity type is provided on the third semiconductor layer. The gate electrode is provided in the first trenches via the insulating film. The first main electrode is provided on the first semiconductor layer. The second main electrode is provided to contact the element part. The channel stopper electrode is provided on the termination part. | 06-16-2011 |
20120025306 | SEMICONDUCTOR DEVICE - In general, according to one embodiment, a semiconductor device includes a first electrode, a first and a second semiconductor layer of a first conductivity type, a third semiconductor layer of a second conductivity type, a fourth semiconductor layer of the first conductivity type in this order. A device region includes a gate electrode inside a first trench. A second trench having a ring-shaped structure forms a first region penetrating through the fourth and third semiconductor layers to the second semiconductor layer and including the device region inside and a second region surrounding the first region outside. A first opening is provided between adjacent ones of the first trenches. A second opening having a wider width than the first opening is provided in the first region outside the device region. A second electrode is electrically connected to the third and fourth semiconductor layers through the first and second openings. | 02-02-2012 |
Patent application number | Description | Published |
20150200248 | SEMICONDUCTOR DEVICE - A semiconductor device includes a first layer of a first conductivity type between a first and a second electrode. A second layer of the first conductivity type is between the first layer and the second electrode. A pair of third layers of a second conductivity type has a first portion in the first layer and a second portion contacting the second layer. A fourth layer is between the second layer and the second electrode and between the third layers and the second electrode. A fifth layer is between the fourth layer and the second electrode. A third electrode is adjacent to the second layer via a first insulating film. A fourth electrode is between the second electrode and the third electrode and adjacent to the fourth semiconductor layer via a second insulating film. The second insulating film is thinner than the first insulating film. | 07-16-2015 |
20160035879 | SEMICONDUCTOR DEVICE - In general, according to one embodiment, a semiconductor device includes, a first semiconductor region, a plurality of second semiconductor regions, a plurality of third semiconductor regions, a fourth semiconductor region, a fifth semiconductor region, and a gate electrode. The third semiconductor region includes a first portion and a second portion. The first portion is provided between the second semiconductor regions adjacent to each other. An amount of impurity of the second conductivity type in the first portion is greater than an amount of impurity of the first conductivity type in the second semiconductor region contiguous to the first portion. The second portion is arranged with a part of the first semiconductor region. An amount of impurity of the second conductivity type in the second portion is smaller than an amount of impurity of the first conductivity type in the part of the first semiconductor region. | 02-04-2016 |
20160079351 | SEMICONDUCTOR DEVICE - A semiconductor device includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type provided in the first semiconductor region, an element region, and a termination region. The element region includes a third semiconductor region of the second conductivity type, a fourth semiconductor region of the first conductivity type, and a gate electrode disposed on a gate insulating layer that extends adjacent the third semiconductor region and the fourth semiconductor region. The termination region surrounds the element region and includes a first electrode, which includes first portions extending in a first direction and second portions extending in a second direction. A plurality of first electrodes are provided on the first semiconductor region and the second semiconductor region. An interval between adjacent first portions in the second direction is less than an interval between adjacent second portions in the first direction. | 03-17-2016 |
Patent application number | Description | Published |
20080304151 | STEREOSCOPIC IMAGE DISPLAY - A stereoscopic image displaying apparatus including: an image generating section emitting right eye image light and left eye image light as linear polarized light having parallel polarization axes; and a polarization axis controlling plate that includes first and second polarizing regions that, when the right eye image light and the left eye image light are incident onto the first and second polarizing regions, emit the incident right eye image light and left eye image light, as linear polarized light having orthogonal polarization axes or circularly polarized light having rotated polarization axes in opposite directions, where each of the right eye image generating region and the left eye image generating region includes a red-color-filter pixel, a green-color -filter pixel, and a blue-color-filter pixel, and a retardation value of the polarization axis controlling plate is uneven for alleviating color of the linear polarized light and the circularly polarized light. | 12-11-2008 |
20090040401 | STEREOSCOPIC IMAGE DISPLAY APPARATUS AND MANUFACTURING METHOD THEREOF - There is provided a manufacturing method that includes: applying a resin to a region at which the right eye image generating region and the left eye image generating region of the image display section overlap with the right eye polarization region and the left eye polarization region of the retarder, on at least one of an emission-side surface of the image display section and an incident-side surface of the retarder; after the applying, laminating the image display section and the retarder so that the emission-side surface of the image display section faces the incident-side surface of the retarder; and attaching the image display section and the retarder by hardening the resin between the image display section and the retarder laminated to each other in the laminating. | 02-12-2009 |
20110242478 | LIQUID CRYSTAL FILTER, RETARDATION FILM, AND OPTICAL LOW-PASS FILTER - A liquid crystal filter made of a plurality of region having different liquid crystal molecule arrangement directions has a problem that linear defects, which are visible at boundaries between different liquid crystal molecule arrangement directions, are captured by image capturing elements. Therefore, provided is a liquid crystal filter comprising a first region that includes liquid crystals arranged in a first direction; a second region that includes liquid crystals arranged in a second direction, which is different from the first direction; and a buffer region that is disposed between the first region and the second region, and includes liquid crystals arranged in an intermediate direction between the first direction and the second direction. | 10-06-2011 |
20140293417 | EYEGLASS COMPONENT, EYEGLASSES, AND EYEGLASS COMPONENT MANUFACTURING METHOD - It is difficult to handle a right eye region and a left eye region that are formed separately. Therefore, provided is an eyeglass component comprising a polarization plate that has one absorption axis and a right eye region and left eye region arranged such that, when the eyeglass component is worn by a user, the right eye region is positioned in front of a right eye of the user and the left eye region is positioned in front of a left eye of the user; and a polarized light modulating layer that is layered on the polarization plate, has a first optical axis that modulates polarized light in the right eye region, includes a second optical axis that is in a different direction than the first optical axis and modulates polarized light in the left eye region, and has the right eye region and the left eye region formed integrally. | 10-02-2014 |
20150227057 | EXPOSURE APPARATUS, MASK, AND OPTICAL FILM - Provided is an exposure apparatus including a transporting section; a first polarized light output section that outputs first polarized light; a second polarized light output section that outputs second polarized light; a first mask section that has formed therein a first aperture section that passes the first polarized light for exposing an orientation film and blocks the first polarized light; and a second mask section that has formed therein a second aperture section that passes the second polarized light for exposing the orientation film and blocks the second polarized light. The first aperture section and the second aperture section are formed to expose a certain region of the orientation film in an overlapping manner. | 08-13-2015 |
Patent application number | Description | Published |
20130246021 | REQUIRED TIME CALCULATING SYSTEM, REQUIRED TIME CALCULATING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING REQUIRED TIME CALCULATING PROGRAM - A required time calculating system including a required time calculating section, in which the required time calculating section extracts the topographic data of one section of a measured route similar to or matching the topographic data of one section of a calculated route determined from the positional and altitude information of each point in the above-described section of the calculated route divided into a plurality of sections from among the topographic data of the measured route determined from the positional and altitude information of each point of the measured route detected by a first sensor that travels with a human when the human travels a predetermined section of the measured route, and calculates the amount of time required for the human to travel the above-described section of the calculated route based on the amount of time taken for the human to travel the above-described section of the measured route. | 09-19-2013 |
20140172132 | SENSOR DATA EXTRACTION SYSTEM, SENSOR DATA EXTRACTION METHOD, AND COMPUTER-READABLE STORAGE MEDIUM HAVING SENSOR DATA EXTRACTION PROGRAM STORED THEREON - A sensor data extraction system of the present invention includes an exercise data obtaining section which obtains exercise data related to an exercise status of a human body, an extraction condition specifying section which specifies an extraction condition for extracting a portion required for analysis processing using the exercise data, from among the exercise data obtained by the exercise data obtaining section, a data extracting section which extracts exercise data matching the extraction condition from among the exercise data obtained by the exercise data obtaining section, a data transfer section which transfers the extracted exercise data from the exercise data obtaining section, and a data analyzing section which performs the analysis processing by using the exercise data transferred by the data transfer section. | 06-19-2014 |
20140172136 | EXERCISE SUPPORT DEVICE, EXERCISE SUPPORT METHOD, AND COMPUTER-READABLE STORAGE MEDIUM HAVING EXERCISE SUPPORT PROGRAM STORED THEREIN - An exercise support device includes: a display section which has a display area where a first object as a virtual mobile object and a second object corresponding to a user are displayed; and a control section which controls display positions of the first object and the second object in the display area. The control section, while the user is moving from a first point to a second point, controls such that the display position of the first object is set to a position corresponding to a first movement distance based on a set target pace and an elapsed time after the user starts movement; and that the display position of the second object is set to a position corresponding to a second movement distance that the user moves from the first point in the elapsed time. | 06-19-2014 |
20140188257 | EXERCISE INFORMATION DISPLAY SYSTEM, EXERCISE INFORMATION DISPLAY METHOD, AND COMPUTER-READABLE STORAGE MEDIUM HAVING EXERCISE INFORMATION DISPLAY PROGRAM STORED THEREON - An exercise information display system of the present invention includes a sensor device which obtains data associated with a motion status of a human body during an exercise, a data processing device which generates plural types of exercise information based on the data obtained by the sensor device, and a viewing device which displays, from among the plural types of exercise information, at least first information indicating a posture of the human body during the exercise and second information associated with the first information in a display format where the first information and the second information are displayed in conjunction with each other. | 07-03-2014 |
Patent application number | Description | Published |
20100045227 | Abnormality detection unit for resolver and electric power steering apparatus - In a resolver and an electric power steering apparatus that uses the resolver, one ends of resolver coils that are provided at regular intervals with respect to the rotation center of a resolver rotor are electrically connected at one connection point, and the voltage at the connection point is maintained at a predetermined reference voltage. If at least one of the condition that the square sum Fs does not satisfy the condition F102-25-2010 | |
20100082200 | Electric power steering apparatus - When a failed Hall IC cannot be identified through determination as to whether any of output voltages falls outside a predetermined output range and determination as to whether any of the output voltages has steeply varied, a microcomputer determines whether the directions of steering torques converted from the output voltages are the same. Then, when the directions of the converted steering torques are the same, the average of these output voltages is used to calculate a temporary torque, and then power assist control is continued, that is, specifically, assisting force applied to a steering system is slowly and gradually decreased, on the basis of the temporary torque. | 04-01-2010 |
20110010051 | ELECTRIC POWER STEERING SYSTEM - In an electric power steering system, an ECU | 01-13-2011 |
20110025244 | Electric Power Steering System - In an electric power steering system, an ECU | 02-03-2011 |
20130099759 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus includes a power supply and a power supply management unit that controls an operation of the power supply. The power supply includes a main power supply, an auxiliary power supply connected in series to the main power supply, a boost circuit that charges the auxiliary power supply by boosting an output voltage of the main power supply and applying the boosted output voltage to the auxiliary power supply, and a voltage sensor that detects an output voltage of the auxiliary power supply. When a reduction amount per unit time of the output voltage detected by the voltage sensor exceeds a voltage reduction amount over a predetermined time, the power supply management unit determines that an abnormality has occurred in an output destination of the power supply. | 04-25-2013 |
20130113471 | ROTATION ANGLE DETECTION DEVICE AND TORQUE SENSOR - A torque sensor computes a steering torque applied to a steering wheel on the basis of a difference between a rotation angle of an input shaft, which is detected using a first resolver, and a rotation angle of a lower shaft, which is detected using a second resolver. A planetary gear mechanism that includes a sun gear that rotates together with the input shaft, a planetary gear that is made of a magnetic material and that revolves around the sun gear and an internal gear that is in mesh with the planetary gear is provided. A rotation angle of the input shaft and a position of the planetary gear are detected on the basis of voltage signals output from the first resolver, and a steering angle of the steering wheel is obtained on the basis of the detected rotation angle and the detected position. | 05-09-2013 |
20130249453 | RESOLVER/DIGITAL CONVERTER - Three-phase resolver signals that are output from a resolver upon reception of an excitation signal are captured by a microcomputer. The microcomputer computes a rotation angle of an electric motor on the basis of the three-phase resolver signals. The ratio between an excitation period of the excitation signal and a capturing period of each of the three-phase resolver signals is set to 8:5. A computation period of the rotation angle is set to half of the least common multiple of the excitation period of the excitation signal and the capturing period of each resolver signal. | 09-26-2013 |
20130261990 | ROTATION ANGLE DETECTION DEVICE, TORQUE DETECTION DEVICE, AND ELECTRIC POWER STEERING DEVICE - A rotation angle detection device includes a rotation angle sensor and detection means. Each of sensor signals of the rotation angle sensor has a composite waveform of an nth multiple angle component corresponding to a multiple of the number of phases, and an mth multiple angle component corresponding to a non-multiple of the number of phases. The detection means subtracts an average value of the respective sensor values from the respective sensor values, and extracts values of the mth multiple angle components from the respective sensor values to detect an electric angle having a multiplication factor of angle of m, and converts m mechanical angle estimated values which are estimated based on the electric angle into values of the nth multiple angle component, and compares the converted values with the average value to detect a mechanical angle with one mechanical rotation of a detection target as one cycle. | 10-03-2013 |
20130271121 | RESOLVER - A resolver according to the invention includes a stator provided with a plurality of teeth, and first to third phase output coils wound around the teeth. When voltages induced in the first to third phase output coils change based on rotation of a rotor, voltage signals corresponding to an electrical angle of the rotor are output from the output coils. One of the first to third phase output coils is wound around each of the teeth. With respect to each of the phases, the distribution of the numbers of turns of each phase output coils, among the first to third phase output coils, is set to a sinusoidal distribution with respect to the electrical angle of the rotor. | 10-17-2013 |
20130282239 | TORQUE DETECTING DEVICE AND ELECTRIC POWER STEERING SYSTEM - A torque detecting device and an electric power steering system are provided. A torque sensor includes a first rotor that is fixed to an input shaft and that has a predetermined shaft angle multiplier, and a second rotor that is fixed to an output shaft and that has a shaft angle multiplier different from that of the first rotor. In first to fourth output coils arranged on a stator that is arranged around outer peripheries of the first and second rotors, electric signals having different phases are generated on the basis of a variation of a gap between the stator and the first and second rotors. A twist angle of a torsion bar is calculated on the basis of the electric signals, and a torque that acts between the input shaft and the output shaft is calculated on the basis of the twist angle. | 10-24-2013 |
20130326888 | ROTATION ANGLE DETECTING DEVICE - A rotation angle detecting device includes a resolver that outputs three-phase signals based on a rotation angle of a rotary shaft, and an R/D converter that acquires the three-phase output signals via signal lines corresponding to the respective phases. The R/D converter determines the rotation angle of the rotary shaft on the basis of the three-phase output signals. The R/D converter includes switching elements that change the potential of the first-phase signal line and the potential of the second-phase signal line, respectively. | 12-12-2013 |
20140345965 | POWER STEERING SYSTEM - A power steering system includes an EPS and a HPS. At normal times, an assist force required by a steering system is computed based on a steering torque and a vehicle speed, and the required assist force is generated by the EPS and the HPS. The torsional stiffness of a torsion bar of the HPS is equal to or substantially equal to the torsional stiffness of a torsion bar of the EPS. Therefore, even if the EPS malfunctions, it is possible to gain the steering feel similar to that when the EPS is operating properly. | 11-27-2014 |
Patent application number | Description | Published |
20140347900 | INTERLEAVED CONVERTER - An interleaved converter configured by connecting a plurality of switching converter circuits in parallel includes an inter-inductor switch that selects whether inductors are connected in series, an input side switch that is connected to a connection point of the inductor and the inter-inductor switch and selects whether electric power is supplied from a rectifier circuit to the inductor side, an output side switch that is connected to a connection point of the inductor and the inter-inductor switch and selects whether electric power is supplied from the inductor to the diode side, and a control circuit that controls the inter-inductor switch, the input side switch, and the output side switch. | 11-27-2014 |
20160036350 | POWER CONVERSION DEVICE AND MOTOR DRIVING DEVICE - The power conversion device includes a power-supply shunt resistor provided between a negative voltage side of a DC power supply and an inverter and phase lower-arm shunt resistors respectively provided between phase lower-arm switching elements of two arms among three arms and the power-supply shunt resistor. The power conversion device detects voltages between connection points of the phase lower-arm switching elements and the phase lower-arm shunt resistors and a negative voltage side of the DC power supply and calculates, on the basis of detection values of the voltages, phase currents flowing to a load device. | 02-04-2016 |
20160049896 | POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE, AIR BLOWER AND COMPRESSOR INCLUDING MOTOR DRIVE DEVICE, AND AIR CONDITIONER, REFRIGERATOR, AND FREEZER INCLUDING AIR BLOWER AND COMPRESSOR - The power conversion device includes a power-supply shunt resistance provided between an inverter and the negative-voltage side of a DC power supply, respective-phase lower-arm shunt resistances provided between the power-supply shunt resistance and respective-phase lower-arm switching elements, a first overcurrent detection unit performing overcurrent detection on a current that flows through the power-supply shunt resistance on the basis of a power-supply shunt-resistance voltage, and a second overcurrent detection unit performing overcurrent detection on each current that flows through the respective-phase lower-arm shunt resistances on the basis of respective-phase lower-arm voltages, wherein overcurrent detection is performed on each phase current using either one of the overcurrent detection result of the first overcurrent detection unit and the overcurrent detection result of the second overcurrent detection unit. | 02-18-2016 |
20160094177 | POWER CONVERSION DEVICE AND MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE - A power conversion device includes a power-supply shunt resistance that is provided between an inverter and the negative-voltage side of a DC power supply, and respective-phase lower-arm shunt resistances that are provided between the power-supply shunt resistance and respective-phase lower-arm switching elements. Respective-phase lower-arm voltages, that are respective voltages between the negative-voltage side of the DC power supply and connection points between the respective-phase lower-arm switching elements and the respective-phase lower-arm shunt resistances, are detected to calculate respective-phase currents that flow through a load device in accordance with detection values of the respective-phase lower-arm voltages, and to control a carrier frequency of a carrier signal, which serves as a reference frequency of each drive signal, according to a change in a specific control parameter A. | 03-31-2016 |
Patent application number | Description | Published |
20090080674 | HOWLING CONTROL APPARATUS AND ACOUSTIC APPARATUS - It is an object of the present invention to provide a howling suppressing apparatus and an acoustic apparatus which can suppress the howling component effectively without suppressing a periodic component other than the howling component. The howling control apparatus comprises a signal separating unit | 03-26-2009 |
20090169027 | ECHO SUPPRESSOR - It is an object of the present invention to provide an echo suppressor which is simple in construction in comparison with the conventional echo suppressor, and which can suppress echoes corresponding to the spatial transfer paths, and reduce the amount of calculations necessary to suppress echoes. The echo suppressor is operative under the condition that transfer functions corresponding to spatial transfer paths between two or more loudspeakers ( | 07-02-2009 |
20100329474 | HOWLING SUPPRESSION DEVICE, HOWLING SUPPRESSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT - To provide a howling suppression device which can reduce quality deterioration of processed sound involved in howling suppression in an acoustic feedback loop environment. | 12-30-2010 |
20110135128 | HEARING AID - There is provided a hearing aid that reduces a possibility of loss. The hearing aid of the present invention includes a microphone | 06-09-2011 |