Patent application number | Description | Published |
20100054407 | PHOTOELECTRIC CONVERSION APPARATUS AND PHOTOELECTRIC CONVERSION SYSTEM HAVING THE APPARATUS - In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the form of serial signals. | 03-04-2010 |
20120206608 | PHOTOELECTRIC CONVERSION APPARATUS AND PHOTOELECTRIC CONVERSION SYSTEM HAVING THE APPARATUS - In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the form of serial signals. | 08-16-2012 |
Patent application number | Description | Published |
20090086915 | IMAGING SYSTEM AND DRIVING METHOD THEREOF - When a gain correction is performed for the radiographed object image, the acquisition of the object image having a high grade quality and no artifact is realized. For that purpose, an image storing unit is provided for storing an image for correction radiographed based on conditions set with the table in a state in which no object exists to each operation modes of the plurality of operation modes; and an image processing unit is provided for performing a gain correction processing of the radiographed object image and performs the gain correction processing of the radiographed object image obtained based on the conditions set in the table of the operation mode selected by the selecting unit in a state in which the object exists using a corresponding image for correction extracted from the image storage unit based on the operation mode selected by the selecting unit. | 04-02-2009 |
20090294679 | RADIATION IMAGING APPARATUS, ITS CONTROL METHOD, AND RECORDING MEDIUM STORING PROGRAM FOR EXECUTING THE CONTROL METHOD - To provide a radiation imaging apparatus capable of restraining the change of image qualities due to the change of sensitivities of an MIS-type photoelectric conversion element and its control method. Therefore, an MIS-type photoelectric conversion element | 12-03-2009 |
20100046711 | RADIATION IMAGING APPARATUS, CONTROL METHOD THEREOF, AND RADIATION IMAGING SYSTEM USING RADIATION IMAGING APPARATUS - A radiation imaging apparatus comprises a first diving circuit unit to drive a first switching element connected to a conversion element, wherein the conversion element converting radiation into charges, a second diving circuit unit to drive a second switching element connected to the conversion element, and a control unit to control the first diving circuit and the second diving circuit independently at different timing. | 02-25-2010 |
20110240870 | RADIATION IMAGING APPARATUS, ITS CONTROL METHOD, AND RECORDING MEDIUM STORING PROGRAM FOR EXECUTING THE CONTROL METHOD - To provide a radiation imaging apparatus capable of restraining the change of image qualities due to the change of sensitivities of an MIS-type photoelectric conversion element and its control method. Therefore, an MIS-type photoelectric conversion element | 10-06-2011 |
Patent application number | Description | Published |
20090010017 | LIGHT EMITTING DEVICE - A light emitting device comprises; a metal reflecting member, a light emitting element fixed to the metal reflecting member, a glass film that covers the metal reflecting member and has Si—N bonds, and a translucent resin that covers the glass film. The present invention provides a light emitting device with which, even when this device is used in a harsh environment, there will be no deterioration in the light reflecting performance of the metal reflecting member, and light can be emitted at high output over an extended period. | 01-08-2009 |
20100117114 | SEMICONDUCTOR LIGHT-EMITTING APPARATUS AND METHOD OF FABRICATING THE SAME - A light-emitting apparatus has a light-emitting device and a supporting board. The light-emitting device has a pair of n-electrodes with a p-electrode therebetween, on the same plane. The supporting board includes an insulating substrate on which positive and negative electrodes are formed, opposing to the p- and n-electrodes of the light-emitting device, respectively. Bonding members bond the p- and n-electrodes with the positive and negative electrodes, respectively. The positive electrode on the supporting board is formed within the width region of the p-electrode and narrower in width than the width of the p-electrode, in a cross-section along a line extending through the pair of n-electrodes. The negative electrodes oppose to the n-electrodes, respectively, with the same widths, or with that side face of each of the negative electrodes which faces the positive electrode being retracted outwardly from that side face of each of the n-electrodes which faces the p-electrode. | 05-13-2010 |
20120112622 | LIGHT EMITTING DEVICE - Disclosed is a light emitting device ( | 05-10-2012 |
20130257264 | WAVE-LENGTH CONVERSION INORGANIC MEMBER, AND METHOD FOR MANUFACTURING THE SAME - A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer. | 10-03-2013 |
20140097462 | SEMICONDUCTOR LIGHT-EMITTING APPARATUS AND METHOD OF FABRICATING THE SAME - A light-emitting apparatus has a light-emitting device and a supporting board. The light-emitting device has a pair of n-electrodes with a p-electrode therebetween, on the same plane. The supporting board includes an insulating substrate on which positive and negative electrodes are formed, opposing to the p- and n-electrodes of the light-emitting device, respectively. Bonding members bond the p- and n-electrodes with the positive and negative electrodes, respectively. The positive electrode on the supporting board is formed within the width region of the p-electrode and narrower in width than the width of the p-electrode, in a cross-section along a line extending through the pair of n-electrodes. The negative electrodes oppose to the n-electrodes, respectively, with the same widths, or with that side face of each of the negative electrodes which faces the positive electrode being retracted outwardly from that side face of each of the n-electrodes which faces the p-electrode. | 04-10-2014 |
20150034987 | LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING LIGHT EMITTING DEVICE - A semiconductor device includes a substrate; a light emitting element flip-chip mounted on the substrate; a phosphor-containing member provided at least above the light emitting element and separated from the light emitting element; and a first reflecting member configured to cover the phosphor-containing member, at least one of a side faces of the light emitting device having an opening for extracting light emitted from the light emitting element and light wavelength-converted by the phosphor-containing member. | 02-05-2015 |
Patent application number | Description | Published |
20090080038 | LIGHT GUIDE OPTICAL SYSTEM, DOCUMENT ILLUMINATING DEVICE USING SAME, AND IMAGE READING APPARATUS USING SAME - A light guide optical system guides a plurality of light beams emitted from a plurality of point light sources arranged linearly to a predetermined surface. The light guide optical system has a plurality of optical surfaces arranged periodically in the arrangement direction of the plurality of point light sources. Each of the plurality of optical surfaces has power in the arrangement direction of the plurality of point light sources. | 03-26-2009 |
20100128329 | IMAGE OPTICAL SYSTEM AND IMAGE READING APPARATUS EQUIPPED WITH SAME - An object is to provide an imaging optical system having a very simple structure that can read image while maintaining excellent image quality without suffering from significant asymmetrical aberrations. An imaging optical system for image reading is adapted to form an image of image information on a surface of an original onto a line sensor while changing a relative position of the original surface and the line sensor to allow the line sensor to read the image information. The imaging optical system includes two off-axial reflecting surfaces, and the two off-axial surfaces are a plus deflecting surface and a minus deflecting surface, or a minus deflecting surface and a plus deflecting surface disposed in the mentioned order from the original surface side, where an off-axial reflecting surface that deflects a reference axis beam clockwise is defined as a minus deflecting surfaces and an off axial reflecting surface that deflects the reference axis beam anticlockwise is defined as a plus deflecting surface. | 05-27-2010 |
20110090547 | INSPECTION METHOD AND INSPECTION APPARATUS FOR AN IMAGE READING APPARATUS - An inspection method for an image reading apparatus where image information of an original is imaged on light receiving element lines arranged in a main scanning direction to read the information on different colors. The method includes: acquiring a first color misregistration from image information based on a first striped pattern located at a position optically equivalent to a surface of the original with respect to the light receiving element lines, the first pattern having white and black lines aligned, and having longitudinal directions of the white and black lines aligned in a sub-scanning direction; acquiring a second color misregistration from image information based on a second striped pattern having white and black lines aligned, and having longitudinal directions of the white and black lines aligned at an angle from the main scanning direction; and calculating a color misregistration in the sub-scanning direction based on the measured color misregistrations. | 04-21-2011 |
20120140111 | ADJUSTING METHOD FOR A LENS UNIT, LENS UNIT AND IMAGE READING APPARATUS - An adjusting method for a lens unit used in an image reading apparatus which images image information of an original onto an image reading unit by the lens unit and reads the image information, the lens unit including rotationally-symmetrical lenses, a lens barrel including the rotationally-symmetrical lenses and an adjusting lens, the adjusting method including: performing rotational adjustment of the lens barrel with respect to the adjusting lens; and imaging an adjusted chart onto one-dimensional photoelectric transducers via the lens unit, obtaining contrast depth characteristics of images corresponding to at least three angles of field of the lens unit among images of the adjusted chart, and, according to the obtained contrast depth characteristics, performing position adjustment of the adjusting lens in at least one of an array direction of the one-dimensional photoelectric transducers, a direction orthogonal to the array direction and an optical axis direction of the lens unit. | 06-07-2012 |
20130107333 | IMAGE READING OPTICAL SYSTEM AND IMAGE READING APPARATUS | 05-02-2013 |
20130163054 | METHOD OF DETECTING FLOATING AMOUNT OF ORIGINAL FOR IMAGE READING APPARATUS, METHOD OF IMAGE PROCESSING USING THE SAME, AND IMAGE READING APPARATUS - A method detects the floating amount of an original from an original table based on image information read by an image reading apparatus having the original table on which the original is placed, a line sensor, and a lens array arranged in a direction of arrangement of pixels of the line sensor. The method includes obtaining image information of the original as line image information by performing scanning in the direction of arrangement of pixels of the line sensor, extracting a distinguishing portion from the line image information, detecting a characteristic frequency by frequency analysis of image information of the distinguishing portion, and determining the floating amount of the original from the characteristic frequency. | 06-27-2013 |
20140071499 | IMAGE READING APPARATUS - The image reading apparatus includes a light transmissive member, a first light source causing a first light to enter the light transmissive member from a first side face of side faces thereof, a second light source illuminating a document laid on an upper face of the light transmissive member with a second light, an image sensor photoelectrically converting an optical image, and an imaging optical system forming on image sensor the object image with light exiting from the light transmissive member. The first light source is disposed such that the first light emitted therefrom and entering the light transmissive member from the first side face satisfies a total reflection condition at the upper and lower faces of the light transmissive member. | 03-13-2014 |
20140253982 | ILLUMINATION DEVICE AND IMAGE READING APPARATUS - An illumination device and an image reading apparatus having improved heat resistance and spectral characteristics are provided. An illumination device used in an image reading apparatus that moves relative to a read area of a document includes: a light source; a light guide including an incident surface on which light from the light source is incident and an exit surface from which light from the light source exits; and a spectroscopic unit that is provided between the light source and the light guide and includes, on a surface of a glass substrate facing the light source, a multi-layer film for reflecting infrared light toward the light source. | 09-11-2014 |
20140362423 | IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An image reading device includes a platen on which an original is to be placed, an illuminating unit configured to illuminate the original, a linear sensor configured to receive light from the original, an optical unit configured to guide the light from the original to the linear sensor, and an aligning portion configured to determine a position of the original in a long-side direction of the linear sensor. The illuminating unit includes a light-guiding member extending in the long-side direction of the linear sensor, and a light source provided only at one long-side end of the light-guiding member. The aligning portion is provided on a side opposite the light source in the long-side direction of the light-guiding member. | 12-11-2014 |
Patent application number | Description | Published |
20080230025 | VALVE TIMING CONTROL SYSTEM - A valve enables and disables communication of a bypass passage, which extends from a fluid supply passage and bypasses at least one fluid control valve, to at least one of a retarding passage and an advancing passage connected to a valve timing mechanism. An ECU controls the valve to enable the communication of the bypass passage to the at least one of the retarding passage and the advancing passage when a temperature is equal to or less than a predetermined temperature. The ECU controls the valve to disable the communication of the bypass passage to the at least one of the retarding passage and the advancing passage when the temperature is higher than the predetermined temperature. | 09-25-2008 |
20090199799 | VALVE TIMING ADJUSTING APPARATUS - A valve timing adjusting apparatus includes a housing, a vane rotor, at least one shaft member, and at least one annular seal member. The at least one shaft member is rotatable synchronously with a driven-side shaft and the vane rotor, and is journaled within the housing. The at least one annular seal member is provided between the at least one shaft member and the housing, and the at least one seal member limits leakage of working fluid from a receiving chamber of the housing to an exterior of the housing. | 08-13-2009 |
20110107991 | VALVE TIMING ADJUSTER - A valve timing adjuster includes a housing member, a vane rotor, and a seal plate. A first housing segment of the housing member receives the vane rotor therein. A second housing segment of the housing member faces with an opening of the first housing segment. The seal plate includes a base part and a resilient part. The base part is held by the first and second housing segments therebetween. The resilient part is in press-contact with the end surface of the vane rotor within a predetermined angular range. The resilient part, the second housing segment, and a camshaft define therebetween a pressure chamber. The resilient part has a pressurized oil introduction passage that provides communication between the pressure chamber and only one of advance and retard hydraulic chambers. | 05-12-2011 |
20120145099 | VALVE TIMING CONTROL APPARATUS - A springless check valve enables flow of hydraulic fluid from a supply port toward a corresponding one of an advancing port and a retarding port in a connection passage upon lifting of a valve member from a valve seat and limits flow of the hydraulic fluid from the corresponding one of the advancing port and the retarding port toward the supply port upon seating of the valve member against the valve seat. In a synchronously rotatable member, a drain passage is circumferentially displaced from the drain port, and an advancing passage is placed at a corresponding circumferential position, which coincides with a circumferential position of the advancing port. Furthermore, a retarding passage is placed at a corresponding circumferential position, which coincides with a circumferential position of the retarding port. | 06-14-2012 |
20130220247 | FLUID-PRESSURE-OPERATED VALVE TIMING CONTROLLER - A fluid-pressure-operated valve timing controller has a control valve that is disposed in a vane rotor and a camshaft. The control valve has a sleeve and a spool moving in an axial direction in the sleeve. The sleeve includes: a valve part held by the vane rotor; a screw part coaxially secured to the camshaft in a state where an axial tension is generated; and a connector part that connects the valve part and the screw part with each other in the axial direction. A strength or rigidity of the connector part relative to the axial tension is lower than that of the valve part. | 08-29-2013 |
20150053156 | VALVE TIMING CONTROL APPARATUS - A valve timing control apparatus includes: a rear plate; a housing fixed to the rear plate; and a vane rotor which is able to rotate relative to the housing. The vane rotor includes a rotor and a vane extending from the rotor outward in a radial direction to divide an oil pressure chamber of the housing into an advance chamber and a retard chamber. The vane has an axial end surface adjacent to the rear plate and a radially outer surface. A first chamfer part is defined at a connection between the axial end surface and the radially outer surface of the vane so as to reduce a surface pressure applied from the rear plate to the vane. | 02-26-2015 |
Patent application number | Description | Published |
20100035986 | METHODS FOR THE TREATMENT AND PREVENTION OF AGE-RELATED RETINAL DYSFUNCTION - A method of treating or preventing age-related retinal dysfunction involves administering to a patient a pharmaceutically effective amount of a synthetic retinal derivative repeatedly over a duration of at least about 3 months. Effective synthetic retinal derivatives include 9-cis-retinyl esters, 11-cis-retinyl esters, derivatives and congeners thereof, and combinations thereof. Suitable ester substituents include carboxylates of C | 02-11-2010 |
20130072557 | METHODS FOR THE TREATMENT AND PREVENTION OF AGE-RELATED RETINAL DYSFUNCTION - A method of treating or preventing age-related retinal dysfunction involves administering to a patient a pharmaceutically effective amount of a synthetic retinal derivative repeatedly over a duration of at least about 3 months. Effective synthetic retinal derivatives include 9-cis-retinyl esters, 11-cis-retinyl esters, derivatives and congeners thereof, and combinations thereof. Suitable ester substituents include carboxylates of C | 03-21-2013 |
20130072558 | METHODS FOR THE TREATMENT AND PREVENTION OF AGE-RELATED RETINAL DYSFUNCTION - A method of treating or preventing age-related retinal dysfunction involves administering to a patient a pharmaceutically effective amount of a synthetic retinal derivative repeatedly over a duration of at least about 3 months. Effective synthetic retinal derivatives include 9-cis-retinyl esters, 11-cis-retinyl esters, derivatives and congeners thereof, and combinations thereof. Suitable ester substituents include carboxylates of C | 03-21-2013 |
20130072561 | METHODS FOR THE TREATMENT AND PREVENTION OF AGE-RELATED RETINAL DYSFUNCTION - A method of treating or preventing age-related retinal dysfunction involves administering to a patient a pharmaceutically effective amount of a synthetic retinal derivative repeatedly over a duration of at least about 3 months. Effective synthetic retinal derivatives include 9-cis-retinyl esters, 11-cis-retinyl esters, derivatives and congeners thereof, and combinations thereof. Suitable ester substituents include carboxyiates of C | 03-21-2013 |
Patent application number | Description | Published |
20100139826 | PNEUMATIC TIRE WITH ASYMMETRIC TREAD PATTERN - A tire having an asymmetric tread pattern that land proportion of outer side area | 06-10-2010 |
20130263992 | PNEUMATIC TIRE - A pneumatic tire is provided in the outer surface of each sidewall portion with a serrated zone formed by a number of serration grooves extending at an angle of at most 45 degrees with respect to the tire radial direction. Each of the serration grooves has a variable depth such that the deepest point lies between the radially outermost end and innermost end of the serration groove. The deepest point is positioned in a range between 0.2 time and 0.4 times a radial distance Ha from the maximum carcass section width position to the radially outermost end of the tire. As a result, the rolling resistance of the tire can be reduced. | 10-10-2013 |
20140158270 | PNEUMATIC TIRE - A pneumatic tire having a tread portion, buttress portions, sidewall portions and bead portions, includes bead cores positioned in the bead portions, respectively, a carcass extending from the tread portion through the sidewall portions to the bead cores in the bead portions, a belt layer formed over the carcass in a tire radial direction in the tread portion and including multiple belt plies, and clinch rubbers positioned over the carcass in a tire axial direction in the bead portions, respectively, and forming outer surfaces in the bead portions. Each of the belt plies has belt cords such that the belt cords are tilted at an angle of 15° to 45° with respect to a tire equator, and each of the clinch rubbers has a thickness in a range of 3 to 5 mm measured at a height of 25 mm from a bead base line in the tire radial direction. | 06-12-2014 |
20140283968 | PNEUMATIC TIRE - A pneumatic tire with a pair of sidewall portions, which comprises at least one of said sidewall portions with a radially outer region being radially outside than a tire maximum width position of its outer surface, the radially outer region being provided with a serration pattern, the serration pattern comprising a first serration group and a second serration group, the first serration group comprising a plurality of concentrically arranged first arc-shaped ridges at regular intervals around a first center point O | 09-25-2014 |
Patent application number | Description | Published |
20120070159 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-22-2012 |
20120099864 | CHROMATIC DISPERSION VALUE CALCULATING APPARATUS, OPTICAL SIGNAL RECEIVING APPARATUS, OPTICAL SIGNAL TRANSMITTING APPARATUS, AND CHROMATIC DISPERSION VALUE CALCULATION METHOD - In order to compensate for chromatic dispersion caused by optical fiber transmission in a communication system with coherent detection using optical signals, specific frequency band signals are used to enable estimation of a chromatic dispersion value. The chromatic dispersion value calculating apparatus is provided with: a signal distributing circuit which distributes, into a plurality of signal sequences, an electrical digital signal converted from received optical signals of an optical signal transmitted by an optical signal transmitting apparatus, in which a known signal with concentrated frequency components of a plurality of specific frequencies is appended to a signal generated from a transmission data sequence; a plurality of frequency band pass filter circuits, each of which separating only each of a plurality of specific frequency components in which the known signal is included from each of the signal sequences distributed by the signal distributing circuit, and passing each of the specific frequency components therethrough; a plurality of power calculating circuits which are provided so as to correspond respectively to the plurality of frequency band pass filter circuits and which calculate power values of signals output from the corresponding frequency band pass filter circuits; a delay time calculating circuit which detects times at which power has the maximum value or times at which the power exceeds a predetermined threshold value, respectively from signal sequences of the power values output from the plurality of power calculating circuits, and which compares the detected times; and a chromatic dispersion value calculating circuit which calculates a chromatic dispersion value based on a comparison result of the times by the delay time calculating circuit. | 04-26-2012 |
20120106618 | METHOD FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL AND DEVICE FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL - A frequency domain multiplexed signal receiving method which decodes received signals that are multiplexed in a frequency domain, includes: a digital signal acquisition step of acquiring digital signals from the received signals that are multiplexed in the frequency domain; an offset discrete Fourier transform step of applying an offset discrete Fourier transform to odd discrete point numbers based on the acquired digital signals; and a decode step of decoding frequency domain digital signals in the frequency domain obtained by the offset discrete Fourier transform, and that are the frequency domain digital signals of one or more frequency channels. | 05-03-2012 |
20120315043 | TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND RECEIVER DEVICE - A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-signal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-signal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed. | 12-13-2012 |
20130028595 | FREQUENCY OFFSET ESTIMATING METHOD AND FREQUENCY OFFSET ESTIMATING APPARATUS - When a circuit that calculates a frequency offset using a shape of a frequency spectrum is implemented by hardware, the circuit size can be reduced. A frequency offset estimating method for estimating the difference between a carrier frequency of a reception signal and the frequency of an output signal of a local oscillator includes performing a discrete Fourier transform on a reception signal previously sampled at a predetermined sampling frequency and outputting a frequency spectrum with a plurality of frequency components, calculating an average power of the frequency spectrum, calculating a threshold by adding a predetermined value to the average power or power obtained by multiplying the average power by a constant, performing 1-bit quantization on powers of the frequency components of the frequency spectrum based on the threshold, and calculating a centroid frequency by multiplying frequencies of the frequency components by powers of 1-bit quantized frequency components, calculating the sum of multiplied products, and dividing the sum of the products by the sum of the powers of the 1-bit quantized frequency components of the frequency spectrum. | 01-31-2013 |
20130070874 | FREQUENCY OFFSET ESTIMATION APPARATUS, FREQUENCY OFFSET ESTIMATION METHOD, AND RECEPTION METHOD - Provided is a frequency offset estimation apparatus that appropriately estimates and compensates for a frequency offset of a received signal when estimating the frequency offset which is the difference between a carrier frequency of the received signal and the frequency of an output signal of a local oscillator. The frequency offset estimation apparatus converts the received signal sampled in advance with a predetermined sampling frequency into a frequency spectrum having N frequency components, limits a frequency band of negative frequency components from 1 to N/2 of the frequency spectrum and a frequency band of positive frequency components from N/2+1 to N of the frequency spectrum, calculates the sum of the squares of the positive frequency components of the frequency spectrum that have been subjected to frequency band limitation and the sum of the squares of the negative frequency components of the frequency spectrum that have been subjected to frequency band limitation to calculate power of the positive frequency components and power of the negative frequency components, and cyclically shifts all frequency components of the frequency spectrum in a frequency domain until the absolute value of a power difference between the power of the positive frequency components and the power of the negative frequency components is less than or equal to a predetermined threshold value, and estimates the frequency offset based on a shift amount until the absolute value is less than or equal to the threshold value. | 03-21-2013 |
20130343749 | WAVELENGTH DISPERSION AMOUNT ESTIMATION METHOD, WAVELENGTH DISPERSION COMPENSATION CIRCUIT, AND RECEPTION DEVICE - A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path. The wavelength dispersion compensation circuit includes an analog-digital converter which converts an optical analog waveform received from the optical fiber transmission path to a digital signal, a digital signal processor which compensates waveform distortion of the digital signal output from the analog-digital converter due to wavelength dispersion at the optical fiber transmission path with a dispersion compensation amount estimated with the wavelength dispersion amount estimation method, and a symbol clock extractor which extracts a symbol arrival timing clock of received data contained in the digital signal output from the analog-digital converter and outputs strength of the symbol arrival timing clock as the clock detection value. | 12-26-2013 |
20140016929 | METHOD FOR ESTIMATING AMOUNT OF WAVELENGTH DISPERSION, WAVELENGTH DISPERSION COMPENSATION CIRCUIT, AND RECEIVING DEVICE - A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path. A wavelength dispersion compensation circuit includes an analog-digital converter which converts an optical analog waveform received from the optical fiber transmission path to a digital signal, a digital signal processor which compensates waveform distortion of the digital signal output from the analog-digital converter due to wavelength dispersion at the optical fiber transmission path with a dispersion compensation amount estimated with the wavelength dispersion amount estimation method, and a symbol clock extractor which extracts a symbol arrival timing clock of received data contained in the digital signal output from the analog-digital converter and outputs strength of the symbol arrival timing clock as the clock detection value. | 01-16-2014 |
20150078762 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-19-2015 |
20150078765 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-19-2015 |
Patent application number | Description | Published |
20080223489 | RARE EARTH PERMANENT MAGNET AND ITS PREPARATION - A rare earth permanent magnet is prepared by disposing a powdered metal alloy containing at least 70 vol % of an intermetallic compound phase on a sintered body of R—Fe—B system, and heating the sintered body having the powder disposed on its surface below the sintering temperature of the sintered body in vacuum or in an inert gas for diffusion treatment. The advantages include efficient productivity, excellent magnetic performance, a minimal or zero amount of Tb or Dy used, an increased coercive force, and a minimized decline of remanence. | 09-18-2008 |
20110000586 | RARE EARTH MAGNET AND ITS PREPARATION - A rare earth magnet is prepared by disposing a R | 01-06-2011 |
20110090032 | RARE EARTH PERMANENT MAGNET AND ITS PREPARATION - A rare earth permanent magnet is prepared by disposing a powdered metal alloy containing at least 70 vol % of an intermetallic compound phase on a sintered body of R—Fe—B system, and heating the sintered body having the powder disposed on its surface below the sintering temperature of the sintered body in vacuum or in an inert gas for diffusion treatment. The advantages include efficient productivity, excellent magnetic performance, a minimal or zero amount of Tb or Dy used, an increased coercive force, and a minimized decline of remanence. | 04-21-2011 |
20120132130 | METHOD OF PRODUCING SiC SINGLE CRYSTAL - A method of producing a SiC single crystal includes: disposing a SiC seed crystal at a bottom part inside a graphite crucible; causing a solution containing Si, C and R (R is at least one selected from the rare earth elements inclusive of Sc and Y) or X (X is at least one selected from the group consisting of Al, Ge, Sn, and transition metals exclusive of Sc and Y) to be present in the crucible; supercooling the solution so as to cause the SiC single crystal to grow on the seed crystal; and adding powdery or granular Si and/or SiC raw material to the solution from above the graphite crucible while keeping the growth of the SiC single crystal. | 05-31-2012 |
20120280775 | RARE EARTH PERMANENT MAGNETS AND THEIR PREPARATION - A sintered magnet body (R | 11-08-2012 |
20130271248 | RARE EARTH SINTERED MAGNET AND MAKING METHOD - A rare earth sintered magnet as an anisotropic sintered body comprising Nd | 10-17-2013 |
Patent application number | Description | Published |
20100259222 | Battery protection circuit, method for protecting battery, power supply device and program - A reusable period of a battery can be maintained for a long time by recharging while avoiding abnormal heating of the battery due to over discharge. A battery protection circuit comprises a control part that cuts off a discharge switch which is a discharge path to a load for a battery when a voltage value of the battery is equal to or less than a first threshold value, or when the voltage value of the battery is less than the first threshold value, wherein the control part cuts off a power switch as a power supply path to the control part itself when the voltage value of the battery is equal to or less than a second threshold value, or when the voltage value of the battery is less than the second threshold value which is lower than the first threshold value. | 10-14-2010 |
20100259270 | Method for determining cell number, cell number determination device, power supply device and program - A number of cells can be determined before control for a battery without providing cell number setting and input means. The cell number determination device comprises voltage measuring units that select an “i”th cell among cells that are connected in series and that configure a battery, and that measure a voltage value between a terminal in which the “i”th cell and an (i−1)th cell, which is in one location higher than the “i”th cell, are connected and a ground potential line, voltage comparators that determine an existence, nonexistence or normality of the cells by comparing a voltage value of an (i+1)th cell that is in one location lower than the “i”th cell with the voltage value of the “i”th cell measured by the voltage measuring units and a cell number determination unit that determines a number of assembled cells and normal cells and cell assembled locations in the battery. | 10-14-2010 |
20100259856 | Power supply control device, method for controlling power supply, program and power supply device - A power supply control device for controlling power supply to a pair of terminals to which a load is connected, comprising a voltage measuring part for measuring a voltage which has a predetermined relationship with the voltage of the pair of terminals, a short circuit detecting part for detecting whether a short circuit exists between the pair of terminals based on the measured voltage and for making power supply to the pair of terminals stop when existence of a short circuit is detected, and a constant current supplying part for supplying a constant current though the pair of terminals; wherein the short circuit detecting part is configured to detect that the previously detected short circuit is eliminated when the voltage measured by the voltage measuring part is equal to or greater than a predetermined threshold value upon supplying the constant current through the pair of terminals. | 10-14-2010 |
Patent application number | Description | Published |
20080266072 | Warning apparatus for use in vehicle - A warning apparatus acquires traffic light information from outside of a vehicle through a traffic information acquisition unit, and travel information regarding a travel condition of the vehicle through a travel information acquisition unit. Then, the warning apparatus determines whether an intersection is safely passable based on the traffic light information and the travel information. When the intersection is not safely passable, the warning apparatus searches similar traffic light information and similar travel information relative to current traffic light information and current travel information by checking records of past driving operation in a storage unit. Then, the warning apparatus predicts a driving operation of a driver when the driver is warned for determining the warning contents based on the operation information in association with the similar traffic light information and the similar travel information. | 10-30-2008 |
20080297332 | Two-wheel-vehicle detecting device for an automotive vehicle - A motorcycle-detecting device according to the present invention is mounted on an automotive vehicle. The device includes ultrasonic sensors for detecting objects around the vehicle, a device for predicting that a motorcycle is approaching the vehicle, and a device for adjusting a detection distance and a detection sensitivity of the ultrasonic sensors. When the predicting means predicts a motorcycle approach, the adjusting device makes the detection distance longer than a normal distance and the detection sensitivity higher than a normal sensitivity. Illuminating devices may be mounted on the vehicle to make the motorcycle passing by visible. A warning may be given to a driver when a motorcycle passing by is actually detected by the sensors. Information regarding the detected motorcycle may be given to other vehicles. According to the present invention, the motorcycle passing by the vehicle is surely and stably detected to thereby avoid any traffic accident with the motorcycle. | 12-04-2008 |
20120299794 | ANTENNA APPARATUS - A wireless communication module is arranged such that a radio frequency circuit board stands vertically on a first earth plate. The radio frequency circuit board includes first and second radio frequency transmission and reception circuits at both end portions, respectively. The radio frequency circuit board includes a second earth plate serving as a grounding electric potential of the radio frequency transmission and reception circuits. Feed lines from the radio frequency transmission and reception circuits are connected to the first earth plate, respectively. Ground lines of the feed from the radio frequency transmission and reception circuits, respectively, are connected to the second earth plate. Thus, vertical exciting currents flow at both end portions of the second earth plane, enabling transmission and reception of vertical polarization waves. | 11-29-2012 |
20130307745 | ANTENNA FOR WIRELESS APPARATUS - An antenna for wireless apparatus which is placed in the vicinity of a conductive object is disclosed. The antenna for wireless apparatus includes a GND plate, a conductive plate parallel to the GND plate, two antenna elements, and two raising conductive plates. Each of the antenna elements includes a short-circuit conductive body and a radiation plate placed at an edge of the short-circuit conductive body. The two antenna elements are placed substantially parallel to a side surface of the conductive object with a distance of a half wavelength of a radio wave to be transmitted and received. The two raising conductive plates are placed close to the two antenna elements respectively and raise the conductive plate from the GND plate to a predetermined height. | 11-21-2013 |
20140062808 | VEHICULAR ANTENNA APPARATUS - A vehicular antenna apparatus includes a substrate, a circuit portion, a case, and a heat transfer path. The substrate has an antenna portion. The circuit portion is mounted on the substrate and configures at least a part of a wireless communication circuit electrically coupled with the antenna portion. The case is made of resin material and configures a protruded portion of an outer surface of a vehicle. The substrate and the circuit portion are arranged in the case. The heat transfer path is arranged between the circuit portion and the case, and has a thermal conductivity higher than air. The circuit portion is electrically coupled with the antenna portion by a solid phase diffusion bonding. | 03-06-2014 |
20140357311 | VEHICULAR WIRELESS TRANSMISSION APPARATUS - A vehicular wireless transmission apparatus includes a memory that stores (i) a default adjustment value relative to a default vehicle model, (ii) a default vehicle model data indicating the default vehicle model, and (iii) a correction value table for correcting the default adjustment value to be compliant with each of different vehicle models different from the default vehicle model. When a host vehicle model data read from a different ECU does not match with the default vehicle model data stored in the memory, it is determined that the vehicular wireless transmission apparatus is presently mounted in a host vehicle model indicated by the host vehicle model data read from the different ECU. The default adjustment value is then corrected by retrieving a correction value corresponding to the host vehicle model data from the correction value table. | 12-04-2014 |
20140364071 | COMMUNICATION DEVICE - A communication device includes: a reception antenna; a wireless communication element that synchronizes with a reception signal in an electric wave input from the reception antenna, and receives the reception signal; and a wire communication element connected to the wireless communication element and connected to an external communication device via a communication cable so that the wire communication element transmits a signal to the communication cable. The wire communication element determines whether the wireless communication element synchronizes with the reception signal. When the wire communication element determines that the wireless communication element synchronizes with the reception signal, the wire communication element restricts transmitting the signal to the communication cable. | 12-11-2014 |
20150054707 | ANTENNA APPARATUS - An antenna apparatus includes a conductive ground pattern formed on a planar substrate and a linear antenna element electrically connected with the ground pattern. The antenna element includes a base end portion, a front end portion, and a feeding point. The antenna element is parallel to the substrate, and the base end portion is connected with an end portion of the ground pattern so that the antenna element is away from the ground pattern. An auxiliary ground pattern having the same potential with the ground pattern is disposed on the substrate between the ground pattern and the antenna element along a side including the end portion. | 02-26-2015 |
20150061964 | ANTENNA DEVICE - An antenna device includes a first antenna element and a second antenna element. The first antenna element operates at a first predetermined frequency band. The second antenna element operates at a second predetermined frequency band that is different from the first predetermined frequency band. The first antenna element includes a base end portion, a front end portion, a folded portion, a first side portion disposed between the base end portion and the folded portion, and a second side portion disposed between the folded portion and the front end portion. A direction of a current vector in the first side portion is equal to a direction of a current vector in the second side portion. The second antenna element is disposed adjacent to the first antenna element. | 03-05-2015 |
20150065067 | VEHICLE COMMUNICATION APPARATUS - A vehicle communication apparatus includes an antenna module, a wireless communication device placed and physically separated from the antenna module, a first communication cable and a second communication cable. The antenna module includes a first antenna and a second antenna. The wireless communication device includes a first antenna-connecting sending portion, a second antenna-connecting receiving portion, an adjustment portion, a memory, and a loss amount calculation portion calculating a loss amount by the first communication cable. The adjustment portion adjusts the sending power of the sending wave radiated from the first antenna based on the loss amount calculated by the loss amount calculation portion, and equalizes the sending power with a reference power. | 03-05-2015 |
20150077305 | ANTENNA DEVICE - An antenna device mounted on a roof surface of a vehicle roof includes a ground plate disposed on the roof surface, an antenna ground, a first antenna element, and a second antenna element. The antenna ground is disposed on a plane perpendicular to the ground plate apart from a ground plate surface by a predetermined distance in a direction perpendicular to the ground plate surface. The first antenna element, whose first base end portion is connected to a first predetermined position of the antenna ground, extends from the first base end portion to a first front end portion in a direction moving away from the antenna ground. The second antenna element, whose second base end portion is connected to a second predetermined position of the antenna ground, extends from the second base end portion to a second front end portion in a direction moving away from the antenna ground. | 03-19-2015 |
Patent application number | Description | Published |
20110088758 | GLASS PASTE COMPOSITION, ELECTRODE SUBSTRATE PREPARED USING SAME, METHOD OF PREPARING ELECTRODE SUBSTRATE, AND DYE SENSITIZED SOLAR CELL INCLUDING ELECTRODE SUBSTRATE - According to embodiments of the invention, a glass paste composition for a dye sensitized solar cell includes a glass frit, an organic binder, and an organic solvent. | 04-21-2011 |
20110094579 | Electrode substrate, method of preparing same, and photoelectric conversion device including same - An electrode substrate for a photoelectric conversion device includes a current-collecting electrode on a transparent conductive substrate and a coating film coating a surface of the current-collecting electrode substrate, wherein the coating film is formed by coating the surface of the current-collecting electrode with a glass paste composition and baking the current-collecting electrode coated with the glass paste composition, and when a thickness of the coating film is a μm and a maximal length of a pore in the coating film is b μm, a condition of b≦0.5a is satisfied. | 04-28-2011 |
20110155227 | Electrolyte composition for photoelectric transformation device and photoelectric transformation device manufactured by using the same - An electrolyte composition for a photoelectric transformation device includes a redox material that is a halide ion, a polyhalide ion, or a combination thereof and a mayenite type compound. | 06-30-2011 |
20110168253 | ELECTRODE SUBSTRATE AND PHOTOELECTRIC TRANSFORMATION DEVICE - An electrode substrate of a photoelectric transformation device includes a transparent conductive substrate, a current-collecting electrode disposed on the transparent conductive substrate, and a coating film coating the surface of the current-collecting electrode. The coating film includes a combustion product of a glass paste composition applied on the current-collecting electrode. The glass paste composition includes a filler made of a material that does not melt at a temperature which is not higher than a glass transition temperature or a phase transition temperature of the transparent conductive substrate. | 07-14-2011 |
20140103314 | ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic electroluminescence device includes a support substrate, a first transparent electrode on the support substrate, an organic light-emitting layer on the first transparent electrode, a second transparent electrode on the organic light-emitting layer, and a high refractive index layer arranged between the support substrate and the first transparent electrode, having at least one layer having a refractive index greater than or equal to a refractive index of the support substrate, having a light dispersion portion for dispersing incident light from the organic light-emitting layer, and having a planar surface contacting the first transparent electrode. | 04-17-2014 |
20140110690 | LIGHT EMITTING DEVICE AND DISPLAY DEVICE HAVING THE SAME - A light emitting device includes a transparent substrate having an uneven surface, a black matrix on a predetermined area of the uneven surface of the transparent substrate, a first insulation layer on the transparent substrate and the black matrix, a thin film transistor on the first insulation layer, the thin film transistor corresponding to a position of the black matrix, a first electrode on the thin film transistor and electrically connected to the thin film transistor, an EL layer on the first electrode, and a second electrode on the EL layer. | 04-24-2014 |
20140197387 | NANOCOMPOSITE, METHOD OF PREPARING THE SAME, AND SURFACE LIGHT EMITTING DEVICE USING THE SAME - Provided is a nanocomposite including a matrix resin including a polyimide, and a surface-modified inorganic oxide nanoparticle dispersed in the matrix, wherein the surface-modified inorganic oxide nanoparticle includes an inorganic oxide nanoparticle, a first functional group modifying a surface of the inorganic oxide nanoparticle and having an imide backbone, and a second functional group modifying a surface of the inorganic oxide nanoparticle and binding to the matrix resin. | 07-17-2014 |
Patent application number | Description | Published |
20090042108 | PATTERN FORMING METHOD AND MASK - Hole patterns are repeatedly arranged on a mask at a constant pitch in each of predetermined directions. In the predetermined directions, a first direction with the smallest pitch and a second direction with the second smaller pitch are specified. A Levenson phase shifter is formed corresponding to the hole patterns to cause the phases of transmitted light through the hole patterns adjacent to each other in the first direction to be opposite to each other. An exposure process is performed by two-point illumination which is adapted to improve the resolution property in the second direction. | 02-12-2009 |
20090081564 | EXPOSURE MASK, PATTERN FORMATION METHOD, AND EXPOSURE MASK FABRICATION METHOD - An exposure mask has a rectangular pattern, an auxiliary pattern, a translucent region, and a shielding region. The rectangular pattern includes a transparent region having a dimension equal to or greater than a critical resolution of exposure light. The auxiliary pattern is arranged around the rectangular pattern and includes a transparent region having a dimension smaller than the critical resolution. The translucent region is arranged between the rectangular pattern and the auxiliary pattern for shifting a phase of light transmitted through the rectangular pattern and the auxiliary pattern to an opposite phase. The shielding region is arranged around the auxiliary pattern. | 03-26-2009 |
20090148780 | METHOD FOR CORRECTING MASK PATTERN, AND EXPOSURE MASK - A method for correcting optical proximity effect of a mask pattern for exposure light, the mask pattern including a rectangular pattern formed by a transparent region having a dimension of limiting resolution of exposure light, includes (a) performing exposure by means of an evaluating mask on which an evaluation pattern including the rectangular pattern is arranged so as to form a pattern on a wafer. Further, the method includes (b) calculating an error between a simulation value obtained by a simulation of exposure, the simulation using the evaluation pattern and a dimension value of the pattern formed on the wafer, and (c) optimizing a simulation parameter so that the error becomes small. The simulation parameter includes at least a first bias value and a second value, the first bias value corrects a corner portion of the rectangular pattern, and the second bias value corrects a side portion of the rectangular pattern. | 06-11-2009 |
20090202926 | EXPOSURE MASK AND PATTERN FORMING METHOD THEREFOR - An exposure mask is constituted of hole-patterns whose scales are higher than the limit resolution of exposure light and which are repetitively aligned in X-Y directions with the prescribed pitch (ranging from 140 nm to 180 nm) therebetween, halftone phase shift regions whose transmission factors range from 2% to 20% and each of which is aligned between two hole-patterns adjacently lying in the X-direction or the Y-direction so as to apply an inverse phase to incidence light, and light preventive regions each of which is aligned between two hole-patterns adjacently lying in an oblique direction inclined to the X-direction or Y-direction by 45°. The exposure mask is illuminated with azimuthal polarization light which is produced by a secondary light source of a zonal illumination and whose polarization direction is perpendicular to the radial direction of the secondary light source. | 08-13-2009 |
20130320507 | SEMICONDUCTOR DEVICE HAVING PLURAL PATTERNS EXTENDING IN THE SAME DIRECTION - A photomask has a mask blank and a light shielding film formed on the mask blank. The light shielding film includes a plurality of opening traces extending in a first direction. An end of a first opening trace in the first direction and an end of a second opening trace in the first direction are in different positions in the first direction. The second opening trace adjoins the first opening trace. | 12-05-2013 |