Seong-Uk
Seong Uk Lee, Cheonan-Si KR
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20140119513 | METHOD AND APPARATUS FOR MEASURING THIN FILM THICKNESS USING X-RAY - Provided is an apparatus and method for measuring for measuring a thickness of thin film using x-ray where a thickness of a thin film of nanometer(nm)-level can be accurately measured without destructing an target sample, through determination of thickness of thin film of the target sample, by determining a calibration curve by comparing a difference of intensities of signals scattered by a special component included in a base layer of the reference sample having a base layer and a base layer formed with the thin film layer with a thickness of the thin film layer, and determining the thickness of thin film layer of the target sample by comparing a difference of intensities of signals scattered by the special component included in the base layer of the target sample having the base layer formed with the thin film layer with the reference sample having the base layer with the calibration curve. | 05-01-2014 |
Seong Uk Lee, Chungcheongnam-Do KR
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20120085280 | SILVER THIN-FILM SPEAD APPARATUS BY MEANS OF DEPOSITION OF NANO METALLIC SILVER - Disclosed is a silver thin film spread apparatus by means of deposition of nano metallic silver, the apparatus comprising: a treatment booth formed at one side with an inlet for inputting a substrate, and formed at the other side with an outlet for discharging the substrate; a transfer device formed at a lower side of the treatment booth for transferring the substrate; a spray device formed at an upper side of the treatment booth for spraying silver solution on a surface of the substrate; a moving device for linearly reciprocating the spray device; and a rotation device formed at the lower side of the treatment booth for rotating the substrate, whereby reflectivity can be enhanced by increasing film compactness and coating uniformity of thin film, where the substrate is rotated at a predetermined constant speed to allow the spray guns to linearly reciprocate and to allow the nano silver thin film to be uniformly spread and deposited on the surface of the substrate at a predetermined constant frequency. | 04-12-2012 |
Seong Uk Moon, Seoul KR
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20150304849 | SYSTEM AND METHOD FOR AUTHENTICATION - Provided is a system and method for authentication. The method includes receiving a subscription request from a user terminal, the subscription request executed by an authentication server communicating with the user terminal and including group discrimination data including a group code and information for discriminating a group from another, if it is determined that the group code and the information included in the group discrimination data correspond to each other, performing a group authentication procedure on the user terminal and processing the group authentication procedure as being successful, issuing a member session key to the user terminal, and providing a service requested by the user terminal in response to the service request including the member session key from the user terminal. In one embodiment, it is possible to prevent information on service users from being divulged. | 10-22-2015 |
Seong Uk Pyung, Suwon-Si KR
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20110218680 | Demand response system - A demand response (DR) system includes a DR control unit to generate different DR levels having different power rates for each power unit, and transmit a current DR level, and a household appliance to receive the DR level from the DR control unit, and differentially control energy output of a product in response to the received DR level so as to reduce power consumption of the product. As a result, the DR system reduces power consumption when power rates are high so as to reduce electricity bills. | 09-08-2011 |
20150160675 | DEMAND RESPONSE SYSTEM - A demand response (DR) system includes a DR control unit to generate different DR levels having different power rates for each power unit, and transmit a current DR level, and a household appliance to receive the DR level from the DR control unit, and differentially control energy output of a product in response to the received DR level so as to reduce power consumption of the product. As a result, the DR system reduces power consumption when power rates are high so as to reduce electricity bills. | 06-11-2015 |
Seong-Uk Jeon, Seoul KR
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20130077230 | HOUSING AND DISC DRIVE INCLUDING THE HOUSING - Provided is a housing for an optical disk drive that locks an upper cover and a lower cover without the use of a screw or bolt. The lower cover includes complementary projections that are formed on side plates and the upper cover includes hook-type projection openings that correspond to the complementary projections. | 03-28-2013 |
Seong-Uk Jeong, Seoul KR
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20100297519 | CATHODE FOR FUEL CELL HAVING TWO KINDS OF WATER-REPELLENCY AND METHOD OF PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME - A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell. | 11-25-2010 |
20100304269 | Electrode For Fuel Cell And Method Of Preparing The Same And Membrane Electrode Assembly And Fuel Cell Comprising The Same - The present invention relates to an electrode for a fuel cell including a catalyst layer that includes a catalyst portion containing a plurality of first catalyst particles dispersed in an ionomer binder resin; and an ionomer portion containing a plurality of second catalyst particles dispersed in an ionomer binder resin, and having a lower concentration of catalyst particles than the catalyst portion, wherein the ionomer portion has a shape of a wall or plural pillars in the catalyst portion. The electrode for a fuel cell according to the present invention has a separate ionomer portion in the catalyst layer, and thus has excellent ion conductivity in an electrode layer and the remarkably improved reaction surface area to enhance the performance of the fuel cell. | 12-02-2010 |
20110020724 | ELECTRODE FOR FUEL CELL HAVING TWO KINDS OF HYDROPHILICITY AND METHOD FOR PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME - An electrode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the electrode has two portions with different hydrophilicities. A portion of the catalyst layer that faces a channel has a higher hydrophilicity than a portion that does not face a channel. This electrode may control hydrophilicity of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way, thereby improving the performance of the cell. | 01-27-2011 |
20120085038 | METHOD FOR MANUFACTURING POROUS SHEET AND POROUS SHEET MANUFACTURED BY THE METHOD - The present invention provides a method for producing a porous sheet, including the steps of a) producing a polymer resin sheet containing an object to be processed by supercritical fluid extraction which is dissolved in supercritical fluid; and b) injecting the supercritical fluid into the polymer resin sheet to extract the object to be processed by supercritical fluid extraction that is contained in the polymer resin sheet, thereby forming pores in the polymer resin sheet, and a porous sheet produced by the same. | 04-12-2012 |
20130316075 | CATHODE FOR FUEL CELL HAVING TWO KINDS OF WATER-REPELLENCY AND METHOD OF PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING SAME - A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls a water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell. | 11-28-2013 |
20140313213 | MEMORY APPARATUS AND METHOD FOR PROCESSING DATA - A memory apparatus may include a tile generator configured to generate a plurality of tiles by dividing a plurality of pixels constituting input data based on a predetermined pixel unit, and a tile storage configured to store the plurality of tiles by sequentially enumerating luminance information and chrominance information about pixels included in the plurality of tiles. | 10-23-2014 |
Seong-Uk Min, Uiwang-Si KR
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20130169292 | METHOD OF ANALYZING COUPLING EFFECT BETWEEN SIGNAL LINES IN AN INTEGRATED CIRCUIT - second signal lines are selected among neighboring signal lines near a first signal line, such that the second signal lines have valid coupling capacitances with respect to the first signal line. Test signal patterns of the first signal line and the second signal lines are selected among real signal patterns according to a function of the integrated circuit. At least one of a coupling noise and a coupling transition delay of the first signal line is calculated based on the test signal patterns. | 07-04-2013 |