Patent application number | Description | Published |
20100127214 | METHOD OF PREPARING OXIDE-BASED NANOPHOSPHOR - A method of preparing oxide-based nanophosphor includes preparing a reaction mixture by dissolving reaction mixture components including a metal halide, an oleate, and a precipitation auxiliary compound in a solvent; irradiating the reaction mixture with microwave radiation to precipitate an oxide-based nanophosphor precursor; and sintering the oxide-based nanophosphor precursor. | 05-27-2010 |
20110100409 | THERMOELECTRIC NANO-COMPOSITE, AND THERMOELECTRIC MODULE AND THERMOELECTRIC APPARATUS INCLUDING THE THERMOELECTRIC NANO-COMPOSITE - A thermoelectric nano-composite including a thermoelectric matrix; a nano-metal particle; and a nano-thermoelectric material represented by Formula 1: | 05-05-2011 |
20110139208 | NANOCOMPOSITE THERMOELECTRIC MATERIAL, AND THERMOELECTRIC DEVICE AND THERMOELECTRIC MODULE INCLUDING THE SAME - A nanocomposite thermoelectric material, a thermoelectric element including the nanocomposite thermoelectric material, and a thermoelectric module including the thermoelectric element are disclosed herein. The nanocomposite thermoelectric material includes highly electrically conductive nano metallic particles that are uniformly dispersed in a thermoelectric material matrix. Thus, the nanocomposite thermoelectric material has high thermoelectric performance, and thus, may be used in a wide range of thermoelectric elements and thermoelectric modules. | 06-16-2011 |
20110247671 | THERMOELECTRIC MATERIAL AND METHOD OF PREPARING THE SAME - A thermoelectric material including: a bismuth-tellurium (Bi—Te)-based thermoelectric material matrix; and a nano-metal component distributed in the Bi—Te-based thermoelectric material matrix, wherein a Lotgering degree of orientation in a c-axis direction is about 0.9 to about 1. | 10-13-2011 |
20120114961 | BULK NANOCOMPOSITE THERMOELECTRIC MATERIAL, NANOCOMPOSITE THERMOELECTRIC MATERIAL, AND METHOD OF PREPARING THE BULK NANOCOMPOSITE THERMOELECTRIC MATERIAL - A bulk nanocomposite thermoelectric material including: a plurality of grains of a thermoelectric material; and a metal nanolayer on a boundary of the plurality of grains, wherein the metal nanolayer is crystalline, and a glass transition temperature and a crystallization temperature of the nanometal are lower than a melting point of the thermoelectric material. | 05-10-2012 |
20140055057 | CURRENT REGULATION APPARATUS - A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage comparison unit, and a control unit. The trans unit includes an auxiliary winding unit. The first switching unit controls an operation of the trans unit. The voltage detection unit detects a voltage induced to the auxiliary winding unit. The voltage comparison unit compares a voltage detected by the voltage detection and a reference voltage. The control unit adjusts a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit. | 02-27-2014 |
20140312806 | LIGHT EMITTING DIODE LIGHTING SYSTEM - An LED lighting system is provided. The LED lighting system includes a main transformer, a voltage detector, a current controller, a second reference voltage supplier, and a power factor compensation circuit. The main transformer transforms an input signal to supply the transformed input signal to an LED group. The voltage detector supplies a control voltage proportional to a level of an input voltage corresponding to the input signal. The current controller includes a first voltage storage, a negative voltage applier, a second voltage storage, switch, and a current control signal generator. The first voltage storage stores the control voltage supplied from the voltage detector or discharges a stored voltage. The negative voltage applier is connected to the first voltage storage, and connected to a ground to apply the control voltage to the ground when the control voltage is a negative voltage. The second voltage storage is connected to the first voltage storage, and stores the control voltage applied through the first voltage storage or discharges a stored voltage. The switch is connected to the second voltage storage, and activated by a driving signal to apply a ground voltage to the second voltage storage. The current control signal generator generates a current control signal according to a voltage signal and gain of the second voltage storage. The first voltage storage or the second voltage storage supplies the current control signal through the voltage detector. The second reference voltage supplier supplies the second reference voltage when the control signal supplied from the voltage detector is equal to or greater than the second reference voltage. The power factor compensation circuit controls a duty ratio of the driving signal according to a level of the current control signal, and controls a peak value of a primary current in the main transformer according to a level of the second reference voltage. | 10-23-2014 |
20150046771 | OPERATING METHOD OF ERROR CORRECTION CODE DECODER AND MEMORY CONTROLLER INCLUDING THE ERROR CORRECTION CODE DECODER - An operating method of an ECC decoder includes receiving first chunk data and second chunk data from a nonvolatile memory device, the second chunk data subsequent to the first chunk data, performing error correction on the first chunk data, determining if the first chunk data includes an uncorrectable error bit and determining not to perform error correction on the second chunk data in response to the first chunk data including the uncorrectable error bit. | 02-12-2015 |
Patent application number | Description | Published |
20090009059 | Metallic compound hybridized nanophosphor layer, applications thereof, and method of preparing a metallic compound hybridized nanophosphor layer - A metallic compound hybridized nanophosphor layer, in which the metallic compound is metallic oxide or metallic sulfide. The metallic compound hybridized nanophosphor layer is prepared in consideration of physical, mechanical, and chemical stabilities. The metallic compound hybridized nanophosphor layer has an excellent light scattering effect and high durability against damage from ion-bombardment. In addition, the charging effect caused by V-UV vacuum-ultraviolet ray can be considerably reduced. Thus, the metallic compound hybridized nanophosphor layer is very suitable for various display devices having high efficiency and high resolution. Accordingly, a display device using the metallic compound hybridized nanophosphor layer shows high performance and long lifetime. The method of forming the metallic compound hybridized nanophosphor layer is a low temperature layer forming process through which a thin film-type layer can be formed at low temperature. Therefore, a phosphor layer having physical, mechanical, and chemical stabilities can be formed at low cost. | 01-08-2009 |
20090140203 | Rare earth nano phosphor and method of preparing the same - Provided are a rare earth nano phosphor and a method of preparing a rare earth nano phosphor, the method includes: (a) synthesis of rare earth nano phosphor precursor particles by radiating microwave energy to a solvent where rare earth metal compounds are dissolved; and (b) sintering of inorganic salt and the rare earth nano phosphor precursor mixture. | 06-04-2009 |
20090142245 | Method of producing nanophosphor particles - Provided is a method of producing spherical nanophosphor particles having a uniform size distribution. When nanophosphor obtained using the method is used in a flat panel display, the flat panel display has higher screen brightness and a higher resolution. | 06-04-2009 |
20100012899 | Method of preparing metallic oxide phosphor - A method for preparing a metal oxide phosphor contemplates preparing a solution including a metal precursor compound and an ionic material and heating the solution under pressure using microwaves. | 01-21-2010 |
20100155665 | Nano phosphor, method of preparing the same, and display including the nano phosphor - A nano phosphor prepared by mixing a metal oxide nanoparticle and inorganic salt, a method of preparing the nano phosphor, and a display device including the nano phosphor. The method includes dissolving the inorganic salt in a solvent, adding the metal oxide nanoparticles to the solution, and annealing the resultant mixture, preferably under pressure. Such a process removes defects in the crystal structure of the nano phosphor, resulting in improved luminescent efficiency when incorporated into a display device. | 06-24-2010 |
Patent application number | Description | Published |
20090008549 | Tandem Fourier Transform Ion Cyclotron Resonance Mass Spectrometer - A tandem Fourier transform ion cyclotron resonance mass spectrometer is provided. In the mass spectrometer, the ions selected by a FT-ICR mass analyzer, which can perform an ion selection process and a mass measurement process with a time interval between the processes, are transmitted through an ion guide to a collision cell, which is located a predetermined distance from the FT-ICR mass analyzer, to split into fragment ions. The fragment ions are transmitted to the FT-ICR mass analyzer that measures the mass of the fragment ions. The fragment ions are generated in the collision cell | 01-08-2009 |
20090039254 | 3-DIMENSIONAL DIFFERENTIAL PUMPING SYSTEM AND METHOD THEREOF - A differential pumping system in which a vacuum chamber is manufactured to have a plurality of vacuum pumps and conductance limit plates between the vacuum pumps. The differential pumping system in which an ion is implanted from an ionization source, passes through the vacuum chamber and is detected by a detection unit includes a plurality of vacuum pumps in the vacuum chamber and one or more conductance limit plates between the vacuum pumps, and the conductance limit plates form an angle less than 90° with the transmission direction of the ion. According to such a constitution, higher degree of vacuum and the ion transmission efficiency are maintained without increasing the length of the vacuum chamber. Furthermore, it is possible to minimize the attenuation of an ion detection signal due to a collision with a neighboring neutral molecule, improving the sensitivity of an ion detection device. | 02-12-2009 |
20090166533 | FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETER USING A CRYO-DETECTION SYSTEM - A Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) is provided. A preamplifier is installed as nearest to an ion cyclotron resonance (ICR) trap as possible at a detector part in the mass spectrometer, and thermal noise generated at the preamplifier is minimized by means of a cryo-cooling system to increase a signal-to-noise ratio of ion detection signals such that an ultra-low amount of specimen can be detected, which was impossible in the related art. | 07-02-2009 |
20100045182 | METHOD FOR FORMATION OF LINE PATTERN USING MULTIPLY NOZZLE HEAD AND DISPLAY PANEL MANUFACTURED BY THE METHOD - A method for formation of a line pattern using a multiply nozzle head includes forming a cell region in which display cells with a height corresponding to a multiple of a line gap of nozzles provided to the multiply nozzle head are repeated in two dimensions; and forming different kinds of first and second line patterns alternatively repeated on the cell region by ink-jet printing using the multiply nozzle head. When the multiply nozzle head scans once, the first and second line patterns are formed at the same time under the condition that the height of the display cells and a gap between two associative line patterns are a multiply of the line gap of nozzles. This method may improve productivity by reducing the number of scans of the multiply nozzle head, and also decrease the possibility of open circuit occurring when forming a line pattern by ink jetting. | 02-25-2010 |
20110114834 | High Throughput Apparatus and Method for Multiple Sample Analysis - A high throughput apparatus for multiple sample analysis is disclosed. The high throughput apparatus for multiple sample analysis may include: a laser light source; a lens array configured to focus laser irradiated by the laser light source into a plurality of focused laser beams; and a focusing unit disposed between the lens array and a sample, the focusing unit configured to focus ions produced from the sample by the plurality of focused laser beams into a plurality of ion beams. A high throughput method for multiple sample analysis may include: producing a plurality of focused laser beams by focusing laser; ionizing a sample by irradiating the plurality of focused laser beams to the sample; and producing a plurality of ion beams by focusing ions, wherein the ions are produced from the sample by the plurality of focused laser beams. | 05-19-2011 |
20110272394 | HEATING ELEMENT AND A MANUFACTURING METHOD THEREOF - The present invention provides a heat emitting body including a) a transparent substrate, and b) a conductive heat emitting pattern having a boundary line shape of figures forming a Voronoi diagram and an intersection point part of boundary lines, at which two or more boundary lines meet each other, forming a curve on at least one side of the transparent substrate, and a method for manufacturing the same. | 11-10-2011 |
20120267524 | APPARATUS AND METHOD FOR CONTROLLING A PIPELINE-TYPE ION CYCLOTRON RESONANCE MASS SPECTROMETER - The present invention relates to an apparatus and method for controlling a pipeline-type ion cyclotron resonance mass spectrometer, in which an ion trap unit of the ion cyclotron resonance mass spectrometer is capable of using two digitizers at the same time, thus enabling a measurement process for detecting an electrical signal which indicates the mass of ions corresponding to a specific purpose, and another measurement process for detecting another electrical signal which indicates the mass of ions corresponding to another specific purpose, to be simultaneously performed. Accordingly, it is an aim of the present invention to provide an apparatus and method to for controlling a pipeline-type ion cyclotron resonance mass spectrometer, which can overcome the problems of time delay among control procedures, and can present a signal detection step wherein an excitation electrode is utilized to improve the sensitivity and speed of signal detection. | 10-25-2012 |
20120322160 | METHOD FOR DISCOVERING PHARMACOLOGICALLY ACTIVE SUBSTANCE OF NATURAL PRODUCTS USING HIGH RESOLUTION MASS SPECTROMETRY AND PHARMACOLOGICAL ACTIVITY TEST - A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products. | 12-20-2012 |
20130041628 | APPARATUS AND METHOD FOR DISTINGUISHING ENERGY BANDS OF PHOTONS IN MULTI-ENERGY RADIATION - An apparatus for distinguishing an energy band of a photon in a readout circuit that counts photons in multi-energy radiation incident onto a sensor for each energy band includes an integrator configured to accumulate an electric signal received from the sensor that has undergone photoelectric conversion from the photon; a comparator configured to compare an accumulated electric signal received from the integrator with one of a plurality of threshold values; and a signal processor configured to instruct sequential switching from one of the plurality of threshold values to another one of the plurality of threshold values according to a result of a comparison received from the comparator; and output a digital signal that distinguishes an energy band of the photon based on results received from the comparator of sequential comparisons of the accumulated electric signal with the plurality of threshold values. | 02-14-2013 |
20130075608 | IMAGE SENSOR AND X-RAY IMAGE SENSING MODULE INCLUDING THE SAME - According to example embodiments, an image sensor includes a charge sensing amplifier configured to amplify charges sensed by a sensing unit. The charge sensing amplifier includes an input terminal, an amplification terminal, an output terminal, a first capacitor connected between the input terminal and the amplification terminal, a first switch connected between the input terminal and the amplification terminal, a second capacitor connected between the amplification terminal and the output terminal, and a second switch connected between the output terminal and a reference voltage terminal. | 03-28-2013 |
20130112864 | CONTROLLER AND CONTROL METHOD FOR IMPROVING SIGNAL PERFORMANCE OF ION CYCLOTRON RESONANCE MASS SPECTROMETER - Provided are a controller and a control method for improving signal performance of an ion cyclotron resonance mass spectrometer. The controller and control method apply electric signals for causing ions injected into an ion trap of the ion cyclotron resonance mass spectrometer to be injected to the center of the trap as close as possible to trap electrodes, and adjust biased ion motion by appropriately adjusting signals of trap electrodes for causing the injected ions to make ion motion, thereby improving the fidelity of ion signals. The control method for improving signal performance of an ion cyclotron resonance mass spectrometer includes an ion position adjustment process and an ion signal detection process. | 05-09-2013 |
20130161492 | SWITCHING CIRCUIT, CHARGE SENSE AMPLIFIER INCLUDING SWITCHING CIRCUIT, AND PHOTON COUNTING DEVICE INCLUDING SWITCHING CIRCUIT - A switching circuit, a charge sense amplifier, and a photon counting device are provided. The switching circuit configured to close and open a connection between a first terminal and a second terminal of a predetermined circuit element, includes: a first transistor comprising a source connected to the first terminal, a drain connected to the second terminal, and a gate; a second transistor comprising a drain, a source, and a gate connected to the drain of the second transistor; a current source configured to supply a current flowing through the drain and the source of the second transistor, to generate a gate voltage of the gate of the second transistor; and a multiplexer configured to receive the gate voltage, a reference voltage, and a control signal, and selectively apply the gate voltage or the reference voltage to the gate of the first transistor based on the control signal. | 06-27-2013 |
20130222721 | OPTICAL FILTER FOR A STEREOSCOPIC DISPLAY DEVICE AND STEREOSCOPIC DISPLAY DEVICE COMPRISING THE SAME - An optical filter for a stereoscopic display device separating left-view and right-view images includes a substrate, an alignment layer formed on the substrate in a predetermined pattern and having a partition wall part on an edge of the alignment layer, and a liquid crystal layer formed on the alignment layer, wherein a height of the partition wall part is two to ten times greater than a thickness of a center part of the alignment layer. | 08-29-2013 |
20130228681 | FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETER AND METHOD FOR CONCENTRATING IONS FOR FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETRY - A Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) includes: an ionization source generating ions; a deceleration lens, on which the ions generated by the ionization source and spatially dispersed are incident, selectively decelerating the incident ions so as to decrease the distance between the ions; and an ion cyclotron resonance cell on which the ions passing through the deceleration lens are incident. By preventing dispersing of ions due to mass difference and converging the ions using the deceleration lens, the mass range that can be measured at one time can be extended. Also, measurement sensitivity can be improved since the ions are effectively introduced to the ICR cell. | 09-05-2013 |
20140124662 | DEVICE FOR OBTAINING THE ION SOURCE OF A MASS SPECTROMETER USING AN ULTRAVIOLET DIODE AND A CEM - The present invention relates to a device for obtaining the ion source of a mass spectrometer using an ultraviolet diode and a CEM module, having the purpose of inducing initial electron emission using a CEM module and by radiating ultraviolet photons emitted from the ultraviolet diode to the entrance of the CEM module to obtain a large amount of amplified electron beams from the exit and to produce electron beams the emission times of which are accurately controlled at low temperature and at low power. The present invention is characterized by a device for obtaining the ion source of a mass spectrometer using an ultraviolet diode and a CEM module, the device consisting essentially of: an ultraviolet diode emitting ultraviolet rays by means of supplied power; an electron multiplier inducing and amplifying the initial electron emission of ultraviolet photons from the ultraviolet diode and obtaining a large amount of electron beams from the exit; an electron condenser lens condensing the electron beams amplified by the electron multiplier; an ion trap mass separator ionizing gas sample molecules by the electron beams injected through the electron xondensing lens; and an ion detector detecting ions separated from the ion trap mass separator by mass spectrum, wherein the electron multiplier is a CEM module. | 05-08-2014 |
20140158880 | ION TRAP QUADRUPOLE MASS FILTER - An ion trap mass spectrometer is provided, including: an electron emitter; an ion trap storing ions generated by ionization resulting from an impact with electrons emitted from the electron emitter; a secondary ion filter for blocking out secondary ions generated due to ions selectively released by the ion trap; and a detector detecting ions selectively released from the ion trap, wherein the electron emitter, the ion trap, the secondary ion filter, and the ion detector are arranged on the same axis, so that a pure mass spectrum can be measured by excluding the secondary ions which are causes of background noise signals in the procedure of detection of the ions by the ion trap mass spectrometer. | 06-12-2014 |
20140204071 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light emitting display device includes pixels positioned at crossing regions between data lines and scan lines, each of the pixels including an organic light emitting diode, a scan driver configured to supply a scan signal to scan lines, a data driver configured to drive the data lines, wherein the data driver includes, in each channel, a supply part comprising a digital-to-analog converter configured to generate data signals using second data supplied from outside in a driving period, and a deterioration part configured to measure deterioration information of the organic light emitting diode using the digital-to-analog converter in a sensing period. | 07-24-2014 |
20140312255 | GASEOUS SAMPLE INJECTION VALVE AND GASEOUS SAMPLE INJECTION METHOD USING SAME - The present invention relates to a gaseous sample injection valve. The gaseous sample injection valve includes a middle body injecting a fixed amount of a gaseous sample into the vacuum chamber of a mass spectrometer, the middle body being constituted by a gaseous sample injection tube, a gaseous sample discharge tube, a storage part, and a vacuum chamber connection tube; an upper body accommodating a first solenoid coil, a first plunger, and a first packing; and a lower body accommodating a second solenoid coil, a second plunger, and a second packing. The gaseous sample injection valve according to the present invention may be miniaturized to utilize a lightweight portable mass spectrometer. Also, the vacuum pump may be reduced in load to extend the operation life-cycle of the vacuum pump. In addition, when the gaseous sample is analyzed by using the mass spectrometer, a uniform mass spectrum with respect to the gaseous sample may be obtained. | 10-23-2014 |
20140339423 | ULTRAVIOLET DIODE AND ATOMIC MASS ANALYSIS IONIZATION SOURCE COLLECTING DEVICE USING ULTRAVIOLET DIODE AND AN MCP - The present invention relates to an ultraviolet diode and an atomic mass analysis ionization source collecting device using an MCP. In the manufacturing of a portable atomic mass analyzer, an object of the present invention is to use an MCP electron multiplier plate, whereby ultraviolet photons emitted from an ultraviolet diode are irradiated on a front surface plate of the MCP electron multiplier plate to induce primary electrons, an amplified electron beam is collected from the electrons, and an electron beam is generated at a low temperature and low power and having a discharge time that is accurately controlled. The atomic mass analysis ionization source collecting device using an ultraviolet diode and an MCP according to the present invention comprises: an ultraviolet diode emitting ultraviolet rays by means of supplied power; an MCP electron multiplier plate inducing and amplifying primary electron discharge from ultraviolet photons from the ultraviolet diode, and collecting a large amount of electron beams from an MCP reverse surface plate; an electron condenser lens condensing the electron beam amplified through the MCP electron multiplier plate; an ion trap atomic mass separator ionizing gas sample molecules by means of an electron beam injected through the electron condenser lens; and an ion detector performing detection of ions separated from the ion trap atomic mass separator, by means of an atomic mass spectrum. | 11-20-2014 |
20140367568 | ANION GENERATING AND ELECTRON CAPTURE DISSOCIATION APPARATUS USING COLD ELECTRONS - The present invention relates to an anion generating and electron capture dissociation apparatus using cold electrons, which uses an MCP electron multiplier plate for generating an electron beam for ionization within an ion trap of a Fourier transform ion cyclotron resonance mass spectroscope, injects ultraviolet photons emitted from an ultraviolet diode across the entire surface of the MCP electron multiplier plate, uses an electron focusing lens to focus and inject an electron beam into the trap, and generates an ECD reaction by coupling electrons to molecules having multiple positive charges using a low energy electron beam emitting apparatus for the negative ionization of neutral molecules in the ion trap. The anion generating and electron capturing and analyzing apparatus of the present invention, which uses cold electrons and is configured of a cold electron generating module which generates a large number of cold electrons from ultraviolet photons emitted into a mass spectroscope in a high vacuum state, comprises a plurality of ultraviolet diodes emitting ultraviolet photons in the mass spectroscope, an MCP electron multiplier plate inducing and amplifying an initial electron emission of ultraviolet photons from the ultraviolet diodes, and generating a high capacity electron beam from a back plate, an electron focusing lens for focusing the electron beam amplified through the MCP electron multiplier plate, and a grid for adjusting the energy and current of electrons. | 12-18-2014 |