Choi, Gwangju
Bong Won Choi, Gwangju KR
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20140144866 | PRESSURE VESSEL - There is provided a pressure vessel. The pressure vessel may include a nozzle-boss comprising a neck part including a hollow portion and a flange part extended outward from the neck part, a liner coupled with the nozzle-boss to provide a space filled with a fluid therein, and a sealing part inserted into a lower end of the neck part to prevent a spillage of the fluid via a boundary between the nozzle-boss and the liner by preventing a direct contact between the fluid and the boundary. | 05-29-2014 |
Bum Ho Choi, Gwangju KR
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20150364714 | ORGANIC LIGHT EMITTING DEVICE MANUFACTURING METHOD USING SHADOW MASK AND ORGANIC LIGHT EMITTING DEVICE MANUFACTURED THEREBY - The present inventions relates to an organic light emitting device capable of decreasing a leakage current, and more particularly, to an organic light emitting device manufacturing method and an organic light emitting device using the same, which can decrease a leakage current, by flattening a lower electrode in order to decrease a leakage current of the lower electrode deposited through a shadow mask. | 12-17-2015 |
Byung-Chul Choi, Gwangju KR
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20130121890 | PHOTOCATALYST-CONTAINING FILTER MATERIAL, AND PHOTOCATALYST FILTER INCLUDING THE FILTER MATERIAL - A filter material containing a photocatalyst that has both adsorption and decomposition functions is disclosed. A filter employing the filter material is also disclosed. | 05-16-2013 |
Cheol-Hee Choi, Gwangju KR
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20110269954 | NOVEL THIAZOLIDINEDIONE DERIVATIVE AND USE THEREOF - The present invention relates to novel thiazolidinedione derivatives expressed by the following formula (I) and the uses thereof. More specifically, the present invention relates to novel thiazolidinedione derivatives expressed by the following formula (I) and a pharmaceutical composition comprising the same. The novel thiazolidinedione derivatives of formula (I) according to the present invention can be effectively used for the prevention or treatment of cardiovascular disease, gastrointestinal disease and renal disease by inhibiting the activity of 15-hydroxyprostaglandin dehydrogenase (15-PGDH) that decomposes prostaglandins as well as useful for the prevention of hair loss and the stimulation of hair growth, and osteogenic stimulation and wound healing. | 11-03-2011 |
20150182571 | COMPOSITION COMPRISING DENDROPANAX MORBIFERAEXTRACT OR COMPOUND DERIVED THEREFROM AS ACTIVE INGREDIENT FOR PREVENTING AND TREATING BENIGN PROSTATIC HYPERPLASIA - Provided is a use of | 07-02-2015 |
20150202241 | USE FOR DENDROPANAX MORBIFERA EXTRACT FOR ADJUSTING 15- HYDROXYPROSTAGLANDIN DEHYDROGENASE AND PGE 2 ACTIVITY - Provided is a 15-PGDH activity adjusting function of a | 07-23-2015 |
Cheol Ho Choi, Gwangju KR
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20140215753 | VACUUM CLEANER AND DUST SEPARATING APPARATUS THEREOF - A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part. | 08-07-2014 |
Cheol-Kyu Choi, Gwangju KR
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20090001882 | White Light Emitting Organic Electroluminescent Device - Provided is a white light emitting organic electroluminescent device, which includes a transparent substrate, a first element, and a second element. The first element includes a first anode, a first element organic layer, and a reflective cathode sequentially disposed on a first substrate of the transparent substrate. The second element includes a second anode, a second element organic layer, and a transparent or translucent cathode sequentially disposed on a second surface of the transparent substrate. The white light emitting organic electroluminescent device of the present invention can eliminate the color coordinates shift phenomenon of white light that occurs in a conventional three primary color white light organic electroluminescent device. Since the aging effect caused by heat generated from light emission is reduced by dividing electroluminescent layers, the electroluminescent device can have a long lifespan. | 01-01-2009 |
Chul Yung Choi, Gwangju KR
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20140205691 | MEDICAL COMPOSITION CONTAINING STAUNTONIA HEXAPHYLLA EXTRACT - Disclosed is an antipyretic drug comprising a | 07-24-2014 |
20160113979 | PHARMACEUTICAL COMPOSITION FOR PROMOTING BONE TISSUE FORMATION, CONTAINING STAUNTONIA HEXAPHYLLA LEAF EXTRACT AS ACTIVE INGREDIENT - The present invention relates to a composition for promoting osteoblast or cartilage cell differentiation. More particularly, the present invention relates to a composition, which includes stauntonia hexaphylla leaf extract that may be safely used without toxicity and side effects by using a natural ingredient, for promoting bone (tissue) formation to be used for suppressing and treating bone and cartilage tissue damage. A pharmaceutical composition including the stauntonia hexaphylla leaf extract according to the present invention as an active ingredient may be used as a medicine for periodontitis or osteoporosis to treat or prevent periodontitis or osteoporosis. | 04-28-2016 |
Dae Won Choi, Gwangju KR
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20160097518 | ASTRAL LAMP DEVICE HAVING DETACHABLE AND ANGLE-CONTROLLABLE LED MODULE BLOCKS AND METHOD OF SETTING THE SAME - Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame. | 04-07-2016 |
Eun Seok Choi, Gwangju KR
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20110135564 | HIGH-CAPACITY ANODE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND PROCESS FOR SYNTHESIZING THE SAME - is the present invention features a high-capacity anode material for rapidly chargeable and dischargeable lithium secondary batteries, which is composed of Li | 06-09-2011 |
Gyeong Rin Choi, Gwangju KR
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20160141736 | ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME - Disclosed are an electrochemical device and a method for manufacturing the same. The electrochemical device includes an electrode assembly that is formed in such a manner that a first electrode, a separator, and a second electrode are wound in the form of a jelly-roll shape, and includes a hollow portion in a center thereof, a first tap plate that is installed on an upper surface of the electrode assembly to be electrically connected to the first electrode, and includes a first through-hole corresponding to the hollow portion in a center thereof, and a second tap plate that is installed on a lower surface of the electrode assembly to be electrically connected to the second electrode, and includes a second through-hole corresponding to the hollow portion in a center thereof. | 05-19-2016 |
Hae Young Choi, Gwangju KR
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20090052849 | OPTICAL FIBER PROBE FOR SIDE IMAGING AND METHOD OF MANUFACTURING THE SAME - Disclosed are an optical fiber probe for side imaging and a method of manufacturing the same. An optical fiber probe according to an aspect of the invention includes a photonic crystal fiber, and an optical fiber lens that is formed by applying heat to a predetermined region including one end of the photonic crystal fiber and substantially removing air holes formed in the predetermined region. The optical fiber lens includes a light diffusion region that diffuses light propagating along a core of the photonic crystal fiber and focuses the light to enable side imaging, a reflector surface that reflects the light at a right angle to enable side imaging, and a lens surface that focuses the light. A small-sized optical fiber probe can be manufactured using a simple manufacturing process, and the optical fiber probe can be miniaturized. Therefore, a light measurement system can be miniaturized, which makes it possible to obtain side images of a very small sample, such as a blood vessel. | 02-26-2009 |
Han-Sol Choi, Gwangju KR
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20160123649 | DEFROSTING APPARATUS, REFRIGERATOR INCLUDING THE SAME, AND CONTROL METHOD THEREOF - A defrosting apparatus includes: an evaporator; a defrosting heater removing frost formed on the evaporator; and a controller controlling the defrosting heater until defrosting for the evaporator is completed when a driving start command for the defrosting apparatus is input, wherein the controller controls the defrosting heater to have an idle section in which the defrosting heater is not operated between a point in time in which the driving start command is input and a point in time in which the defrosting is completed. | 05-05-2016 |
Ha-Rim Choi, Gwangju KR
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20100299767 | TREM-2 GENE AND PROTEIN AS INHIBITORS OF EXPRESSION OF GA733-2, AND TRANSGENIC ANIMALS COMPRISING THE SAME AND USES THEREOF - Disclosed are a composition for inhibiting the expression of GA733-2 or for detecting GA733-2, which comprises TREM-2 gene or protein, a transgenic animal containing same, and a method using the same. | 11-25-2010 |
Heechul Choi, Gwangju KR
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20140202953 | Multilayer Membrane Containing Carbon Nanotube Manufactured by Layer-By-Layer Assembly Method - Disclosed herein is a multilayer membrane containing carbon nanotube manufactured by a layer-by-layer assembly method, the multilayer membrane according to the present invention having excellent (i) flux property, (ii) anti-fouling (in particular, anti-protein-fouling) property, and (iii) flux recovery property by a simple water cleaning process even after the membrane is fouled. | 07-24-2014 |
20150224453 | METHOD FOR FABRICATING POLYETHERSULFONE NANOFIBER MEMBRANE BY ELECTROSPINNING - Disclosed is a method for fabricating a polyethersulfone nanofiber membrane with improved mechanical strength for water treatment by electrospinning. According to exemplary embodiments, the polyethersulfone nanofiber membrane possesses higher mechanical strength than conventional polyethersulfone nanofiber membranes that are susceptible to damage and limited in life when applied to water treatment processes. In addition, the polyethersulfone nanofiber membrane has high water permeability and can remove contaminants with high efficiency compared to conventional membranes for water treatment. Therefore, the polyethersulfone nanofiber membrane is suitable for use in water treatment. | 08-13-2015 |
20160051939 | NANOCOMPOSITE ULTRA-THIN SEPARATION MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a nanocomposite ultra-thin separation membrane and a method for manufacturing the same, wherein the nanocomposite ultra-thin separation membrane for seawater desalination according to the present invention includes: 1) a polyamide-based polymer active layer; 2) a polyethersulfone support membrane; 3) an external support body; and 4) carbon nanotube, to remarkably improve hydrophilicity of the porous support membrane, thereby having more than doubled water permeability of the entire separation film. In addition, due to a physiochemical reaction of the functionalized carbon nanotube, a support membrane exposed to air for a long period of time is also usable as a lower body of the ultra-thin separation membrane. | 02-25-2016 |
Hee-Ju Choi, Gwangju KR
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20130170011 | TRANSMISSIVE IMAGE MODULATOR USING MULTI-FABRY-PEROT RESONANT MODE AND MULTI-ABSORPTION MODE - A transmissive image modulator for allowing image modulation over a wide bandwidth with multiple Fabry-Perot resonant modes and multiple absorption modes is provided. The transmissive image modulator includes a lower reflection layer; an active layer disposed on the lower reflection layer, including multiple quantum well layers and multiple barrier layers; an upper reflection layer disposed on the active layer; and at least one micro-cavity layer disposed in at least one of the lower and upper reflection layer. The active layer and the at least one micro-cavity layer have thicknesses of a multiple of λ/2, where λ is a resonant wavelength. | 07-04-2013 |
20150138620 | TRANSMISSIVE IMAGE MODULATOR USING MULTI-FABRY-PEROT RESONANT MODE AND MULTI-ABSORPTION MODE - A transmissive image modulator for allowing image modulation over a wide bandwidth with multiple Fabry-Perot resonant modes and multiple absorption modes is provided. The transmissive image modulator includes a lower reflection layer; an active layer disposed on the lower reflection layer, including multiple quantum well layers and multiple barrier layers; an upper reflection layer disposed on the active layer; and at least one micro-cavity layer disposed in at least one of the lower and upper reflection layer. The active layer and the at least one micro-cavity layer have thicknesses of a multiple of λ/2, where λ is a resonant wavelength. | 05-21-2015 |
Hee Jung Choi, Gwangju KR
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20100301798 | METHOD FOR CONTROLLING SOLAR CHARGE DEVICE AND PORTABLE TERMINAL USING THE SAME - A method for controlling a solar charge device and a portable terminal using the same by registering a driver software for controlling the solar charge device in an operating system. Upon booting of the portable terminal, and enabling the charge detection terminal every set given time period stored in the driver software after the booting completion, a charge detection signal corresponding to presence of power output of a solar cell being input to the charge detection terminal. The method and the portable terminal prevent the occurrence of lock-up in the portable terminal due to frequent interrupts occurring in the charge detection terminal from a non-uniform output of a solar cell that may occur as movement of the portable terminal can vary the amount of sunlight received by the solar cell. | 12-02-2010 |
Hee Seok Choi, Gwangju KR
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20090206729 | PHOSPHOR MATERIAL, COATING PHOSPHOR COMPOSITION, METHOD OF PREPARING PHOSPHOR MATERIAL AND LIGHT EMITTING DEVICE - Disclosed are phosphor, coating phosphor composition, a method for preparing the phosphor, and a light emitting device. A silicate-based phosphor is expressed in a chemical formula of (4-x-y-z)SrO.xBaO.zCaO.aMgO.2(SiO | 08-20-2009 |
20100019251 | Semiconductor Light Emitting Device - A semiconductor light emitting device is provided. The semiconductor light emitting device comprises a substrate and a light emitting structure. The substrate comprises a plurality of discontinuous fusion spots on at least one side surface thereof. The light emitting structure comprises a plurality of compound semiconductor layers on the substrate. | 01-28-2010 |
20100102345 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package comprises a body comprising a cavity at one side thereof, at least one of lead frames comprising a bottom frame and a sidewall frame in the cavity, and a light emitting device electrically connected with the lead frames. | 04-29-2010 |
20110133240 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Discussed is an LED package The LED package includes a body having a cavity at one side thereof, at least one of lead frames having a bottom frame and a sidewall frame in the cavity, and a light emitting device electrically connected with the lead frames. | 06-09-2011 |
20110220952 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Discussed is a semiconductor LED package. The semiconductor LED package includes a packet body having a cavity, a semiconductor light emitting device in the cavity of the package body; and a plurality of reflective frames, each of the reflective frames having a bottom frame in the cavity of the package body, and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame, wherein the plurality of reflective frames are electrically separated from each other. | 09-15-2011 |
20120098018 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a semiconductor light emitting device on the package body and at least one of frames on the package body. At least one of the frames includes a bottom frame on the package body, and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 04-26-2012 |
20130341654 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a first frame and a second frame on the package body and a light emitting device chip on the first frame. The first frame is separated from the second frame, and the first frame includes a bottom frame on the package body and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 12-26-2013 |
20140145205 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a first frame and a second frame on the package body and a light emitting device chip on the first frame. The first frame is separated from the second frame, and the first frame includes a bottom frame on the package body and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 05-29-2014 |
20150021644 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is a light emitting device package. The light emitting device package includes a package body having a first cavity and a second cavity; a plurality of reflective frames comprising a first reflective frame and a second reflective frame on the first cavity and the second cavity, respectively, and each of the first reflective frame and the second reflective frame comprises a bottom frame and at least two side wall frames extending from the bottom frame; and a light emitting device on the first reflective frame, wherein the first reflective frame and the second reflective frame are electrically separated from each other. | 01-22-2015 |
20150021651 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is a light emitting device package. The light emitting device package includes a package body having a first cavity and a second cavity; a plurality of reflective frames comprising a first reflective frame and a second reflective frame on the first cavity and the second cavity, respectively, and each of the first reflective frame and the second reflective frame comprises a bottom frame and at least two side wall frames extending from the bottom frame; and a light emitting device on the first reflective frame, wherein the first reflective frame and the second reflective frame are electrically separated from each other. | 01-22-2015 |
20150179906 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is a light emitting device package. The light emitting device package includes a package body having a first cavity and a second cavity; a plurality of reflective frames comprising a first reflective frame and a second reflective frame on the first cavity and the second cavity, respectively, and each of the first reflective frame and the second reflective frame comprises a bottom frame and at least two side wall frames extending from the bottom frame; and a light emitting device on the first reflective frame, wherein the first reflective frame and the second reflective frame are electrically separated from each other. | 06-25-2015 |
Hoo-Kyun Choi, Gwangju KR
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20090246266 | PREPARATION AND COMPOSITION OF MELOXICAM TRANSDERMAL DRUG DELIVERY SYSTEM - A composition for transdermal permeation and a preparation method are disclosed. The composition including meloxicam as an active ingredient and further including at least one permeation enhancing agent selected from the group consisting of a sorbitan fatty acid derivative, a polyglyceryl fatty acid derivative, a polyethylene glycol vegetable oil ester, a polyethylene glycol corn oil glyceride, and a polyethylene glycol almond oil glyceride and at least one acrylic polymer adhesive having a hydroxyl group or no functional group. | 10-01-2009 |
20100285133 | TRANSDERMAL DRUG DELIVERY SYSTEM CONTAINING GRANISETRON - Disclosed herein is a transdermal system in a matrix form capable of enhancing granisetron carrying efficiency and improving transdermal absorption while inhibiting recrystallization, which comprises: at least one transdermal enhancer selected from a group consisting of polyglyceryl-3 oleate, polyethyleneglycol-20 almond glyceride, polyethyleneglycol-12 palm kernel glyceride, isopropyl myristate and oleyl alcohol; and an acrylate polymer. | 11-11-2010 |
20130095168 | TRANSDERMAL DRUG DELIVERY SYSTEM CONTAINING DONEPEZIL - The present invention provides a transdermal drug delivery system comprising a drug-containing matrix layer comprising: (a) donepezil or a pharmaceutically acceptable salt thereof as an active ingredient; and (b) an acrylate-rubber hybrid as an adhesive. | 04-18-2013 |
20130324950 | TRANSDERMAL DELIVERY SYSTEM CONTAINING GALANTAMINE OR SALTS THEREOF - The present invention provides a transdermal delivery system, which comprises a drug-containing matrix layer comprising: galantamine or its pharmaceutically acceptable salt as an active ingredient; and a styrene-butadiene-styrene copolymer or a styrene-isoprene-styrene copolymer as an adhesive. | 12-05-2013 |
20140370076 | TRANSDERMAL DRUG DELIVERY SYSTEM CONTAINING DONEPEZIL - The present invention provides a transdermal drug delivery system comprising donepezil or its pharmaceutically acceptable salt and method of making the same. | 12-18-2014 |
20140370077 | TRANSDERMAL DRUG DELIVERY SYSTEM CONTAINING FENTANYL - The present invention provides a transdermal drug delivery system comprising fentanyl or its pharmaceutically acceptable salt and method of making the same. | 12-18-2014 |
20150258036 | TRANSDERMAL DRUG DELIVERY SYSTEM CONTAINING DONEPEZIL - Certain embodiments of the invention relates to a transdermal drug delivery system containing donepezil or a pharmaceutically acceptable salt thereof as an active ingredient, more specifically to a transdermal drug delivery system containing a drug-containing matrix layer comprising donepezil or its pharmaceutically acceptable salt, a styrene copolymer, a hydrogenated rosin glycerol ester, and optionally a hydrocarbon resin. | 09-17-2015 |
Hyeon-Gyu Choi, Gwangju KR
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20160051939 | NANOCOMPOSITE ULTRA-THIN SEPARATION MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a nanocomposite ultra-thin separation membrane and a method for manufacturing the same, wherein the nanocomposite ultra-thin separation membrane for seawater desalination according to the present invention includes: 1) a polyamide-based polymer active layer; 2) a polyethersulfone support membrane; 3) an external support body; and 4) carbon nanotube, to remarkably improve hydrophilicity of the porous support membrane, thereby having more than doubled water permeability of the entire separation film. In addition, due to a physiochemical reaction of the functionalized carbon nanotube, a support membrane exposed to air for a long period of time is also usable as a lower body of the ultra-thin separation membrane. | 02-25-2016 |
Hyuk Sun Choi, Gwangju KR
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20140255180 | AXIAL TURBINE - The present invention relates to an improvement of an axial turbine. Thereto, the present invention includes a submerged turbine | 09-11-2014 |
Hyun Beom Choi, Gwangju KR
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20130291013 | OPTICAL INTEGRATION SYSTEM FOR DISASTER EMERGENCY PROADCASTING COMMUNIVATION - The present invention relates to an optical integration system for disaster emergency broadcasting communication, including: sensor units which detect surrounding temperatures and strains and are separately located from each other; a broadcasting communication integration unit for transmitting an integrated broadcasting communication optical signal by multiplexing a received broadcasting signal and a received communication signal as optical signals having different wavelengths; reception units which receive the optical signal transmitted from the broadcasting communication integration unit, demultiplex the received optical signal according to each wavelength, transmit the separated broadcasting signal and the separated communication signal to a corresponding peripheral terminal, and transmit the information detected through the sensor units to the broadcasting communication integration unit; and a management server for determining a disaster state from the information which is detected through the sensor units and is received through the reception units and the broadcasting communication integration unit, and transmitting a processing signal through the broadcasting communication integration unit to the reception units according to the disaster state when determining the disaster state, wherein the management server transmits a signal to each guiding indication lamp connected to the separately arranged reception units on the basis of a location information database in which the location information of the sensor units is stored according to the recognized disaster state, and transmits an emergency guide broadcasting signal to the peripheral terminal, and each reception unit includes a mobile remote management server which further connects wireless sensor nodes so as to perform communication through the restoration of retrievable wired/wireless networks in the disaster state, and transmits the information through the wireless sensor nodes to the reception units by enabling communication with the management server and enabling remote connection with the wireless sensor nodes. The system of the present invention can induce reconstruction of destroyed power and information communication networks as emergency networks, and active evasion from a disaster area using independent emergency power in the disaster state. | 10-31-2013 |
Hyun Beum Choi, Gwangju KR
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20120172951 | MASK APPARATUS FOR SKIN BEAUTY CARE USING LIGHT - Provided is a mask apparatus for skin beauty care using light. The mask apparatus includes a face mask that is configured to be placed on a human face, a light irradiation unit that is configured to irradiate light into a face of a user wearing the face mask, a light irradiation driving unit that drives the light irradiation unit, a controller that controls the light irradiation driving unit according to an operation signal of the operating unit, and a vibration sensor that senses external vibration or impact applied to the face mask, wherein, when a sensing signal instructing the light irradiation unit to be driven in an ON/OFF mode is received from the vibration sensor, the controller controls the light irradiation unit to be activated according to the sensing signal. | 07-05-2012 |
Hyundu Choi, Gwangju KR
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20150179369 | BUTTON ASSEMBLEY OF ENGINE START/STOP SWITCH FOR VEHICLES AND ENGINE START/STOP SWITCH FOR VEHICLES INCLUDING THE SAME - A button part of an engine start/stop switch for a vehicle includes a button of which an end portion is exposed to the outside to be pressed for start or stop of an engine; a slider which is arranged at the front end portion of the button to slide along the inner circumferential surface of a housing; and a coil antenna which is arranged outside the button and the slider to send driving radio waves to a transponder of a portable device that a driver carries. | 06-25-2015 |
Hyunguk Choi, Gwangju KR
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20150088797 | SYNAPSE CIRCUITS FOR CONNECTING NEURON CIRCUITS, UNIT CELLS COMPOSING NEUROMORPHIC CIRCUIT, AND NEUROMORPHIC CIRCUITS - Example embodiments relate to a synapse circuit connecting neuron circuits by using two memristors so as to enhance symmetry, a neuromorphic circuit using the same, and a unit cell composing the neuromorphic circuit. | 03-26-2015 |
Il Woo Choi, Gwangju KR
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20120280138 | FILM MEMBER, FILM TARGET FOR LASER-DRIVEN ION ACCELERATION, AND MANUFACTURING METHODS THEREOF - The present disclosure provides a method of manufacturing film member for laser-driven ion acceleration, a film target, and a method of manufacturing the same, so that only the film member exists at a laser focusing point on the film target, allowing repeated ion acceleration from the film member by focusing high power laser beams thereon. The method includes preparing a film member solution containing a film material to be used for laser-driven ion acceleration; forming a film member on a base substrate by using the film member solution; and separating the film member from the base substrate by dipping the base substrate having the film member formed thereon into a film parting solvent. | 11-08-2012 |
Jae Hyouk Choi, Gwangju KR
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20120138402 | HIGH-PERFORMANCE SHEAR FRICTION DAMPER - Disclosed is a high-performance shear friction damper provided in a building construction and attenuating a vibration which is applied to the building construction due to external loads such as an earthquake or strong wind. The high-performance shear friction damper includes first and second support bodies supported to a building construction or damping rods, two prop plates fixed to the second support body and extending to surround both side surfaces of the first support body, friction plates mounted between the first support body and the prop plates, and fastening units each including a tension bolt penetrating the first support body, the friction plates and the prop plates, and a nut fastened to an end of the tension bolt, wherein the first support body has slots extending in a horizontal direction, the tension bolts extend while penetrating the slots to allow the first support body to be slidably movable in the horizontal direction with respect to the friction plates. | 06-07-2012 |
20140326557 | HIGH-PERFORMANCE SHEAR FRICTION DAMPER - Disclosed is a high-performance shear friction damper provided in a building construction and attenuating a vibration which is applied to the building construction due to external loads such as an earthquake or strong wind. The high-performance shear friction damper includes first and second support bodies supported to a building construction or damping rods, two prop plates fixed to the second support body and extending to surround both side surfaces of the first support body, friction plates mounted between the first support body and the prop plates, and fastening units each including a tension bolt penetrating the first support body, the friction plates and the prop plates, and a nut fastened to an end of the tension bolt, wherein the first support body has slots extending in a horizontal direction, the tension bolts extend while penetrating the slots to allow the first support body to be slidably movable in the horizontal direction with respect to the friction plates. | 11-06-2014 |
Jinho Choi, Gwangju KR
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20160081058 | BROADCASTING SYSTEM FOR WIRELESS NETWORK AND BROADCASTING SERVICE PROVISION METHOD FOR WIRELESS NETWORK - Disclosed herein is a broadcasting system using a wireless communication system, including a subscriber to receive a broadcast signal and transmits an ACK signal or NACK signal depending on whether or not the broadcast signal is normally decoded; and a broadcast transmitter to transmit the broadcast signal and set a maximum throughput based on the ACK signal or NACK signal transmitted from the subscriber to transmit the broadcast signal. According to embodiments of the present invention, broadcast services can be provided with the maximum efficiency, and therefore power consumption may be reduced, radio resources may be prevented from being wasted. When broadcast services according to the present invention are used, desired advantages may be expected in terms of overall efficiency of a network. | 03-17-2016 |
Jin Sik Choi, Gwangju KR
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20080217638 | Semiconductor Light Emitting Device and Fabrication Method Thereof - A semiconductor light emitting device includes a first semiconductor layer having a bottom surface with uneven patterns, an active layer formed on the first semiconductor layer, a second semiconductor layer formed on the active layer, a second electrode formed on the second semiconductor layer, and a first electrode formed under the first semiconductor layer. | 09-11-2008 |
20110001164 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND FABRICATION METHOD THEREOF - A semiconductor light emitting device according to an embodiment includes a top layer having a top surface and a bottom surface, the top layer being an n electrode; an uneven pattern formed in the bottom surface of the n electrode; an n-type semiconductor layer formed under the n electrode, the n-type semiconductor layer having a top surface and a bottom surface; an uneven pattern formed in the top surface of the n-type semiconductor layer, the uneven pattern of the n-type semiconductor layer corresponding to the uneven pattern of the n electrode; an active layer formed under the n-type semiconductor layer; a p-type semiconductor layer formed under the active layer; and a p electrode formed under the p-type semiconductor layer. | 01-06-2011 |
Jong Chul Choi, Gwangju KR
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20130025303 | REFRIGERATOR AND CONTROL METHOD THEREOF - A control method of a refrigerator including a compressor to supply refrigerant to an evaporator to cool a storage compartment, a valve to adjust flow of the refrigerant, a fan to blow air heat-exchanged by the evaporator, and a heater to remove frost from the evaporator. The control method includes, upon receiving a power-saving signal, determining whether the received power-saving signal is a first or second power-saving mode signal, upon determining that the power-saving signal is the first power-saving mode signal, performing at least one selected from among resetting of target temperature of the storage compartment, adjustment of an operation rate of the compressor, and adjustment of operation time of the heater to execute a first power-saving mode, and, upon determining that the power-saving signal is the second power-saving mode signal, controlling the compressor, the fan, and the heater to be off to execute a second power-saving mode. | 01-31-2013 |
20130219951 | REFRIGERATOR - A structure of a suction pipe provided with a capillary tube having a spiral shape being inserted into an inside thereof, capable of easily fixing the capillary tube to the suction pipe, and a refrigerator having the same, the refrigerator including a suction pipe, and a capillary tube having a spiral portion being inserted into the inside the suction pipe, the suction pipe including a first wall making contact with the spiral portion, a second wall making contact with the spiral portion while facing the first wall, and a connecting wall configured to connect the first wall to the second wall while being spaced apart from the spiral portion. | 08-29-2013 |
Joon Ho Choi, Gwangju KR
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20160072290 | APPARATUS AND METHOD FOR OPERATING DISTRIBUTED GENERATOR IN CONNECTION WITH POWER SYSTEM - An apparatus for operating a distributed generator in connection with a power system includes an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected, a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit, and a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator. | 03-10-2016 |
Jung-Kap Choi, Gwangju KR
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20110053279 | DETECTION METHODS OF PROTEINS ON POLYACRYLAMIDE GELS USING GEL BACKGROUND STAINING AND ORGANIC DYE COMPOSITIONS FOR THE SAME - Disclosed are a method for detecting proteins on a polyacrylamide gel by background staining method using an organic dye composition containing eosin Y or phloxine B, and the organic dye composition for use in the method, which enables the rapid and simple detection of the protein on the polyacrylamide gel with a high sensitivity. | 03-03-2011 |
Jun Seok Choi, Gwangju KR
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20100135619 | Optical Module and Fabrication Method of the Same - Disclosed is an optical module comprising, an optical waveguide on the upper side of a substrate; a cutout with at least two slant surfaces, passing at least the core of the optical waveguide; and a film-filter above the cutout. Constructions of bi-directional multi-wavelength optical transmitter-receiver assembly using the optical module as a unit element are also provided in variety on a planar substrate. According to this invention, a bi-directional multi-wavelength transmitter-receiver, which is compact, reliable, excellent in the optical performance and simple in the alignments between the composing elements, can be produced. | 06-03-2010 |
Keon Soo Choi, Gwangju KR
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20140215753 | VACUUM CLEANER AND DUST SEPARATING APPARATUS THEREOF - A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part. | 08-07-2014 |
Kwang Ho Choi, Gwangju KR
Kwang Ki Choi, Gwangju KR
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20110089436 | LIGHT EMITTING DEVICE, METHOD OF MANUFACTURING THE SAME, LIGHT EMITTING DEVICE PACKAGE AND LIGHTING SYSTEM - A method of manufacturing a light emitting device according to the embodiment includes the steps of partially forming a first buffer layer on a growth substrate, in which the first buffer layer has a Young's modulus smaller than that of the growth substrate; and forming a light emitting structure layer on the growth substrate and the first buffer layer, in which the light emitting structure layer includes a first conductive semiconductor layer, a second conductive semiconductor layer and an active layer interposed between the first and second conductive semiconductor layers. | 04-21-2011 |
20110089451 | SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor light-emitting device is provided that may include an electrode layer, a light-emitting structure including a compound semiconductor layer on the electrode layer, and an electrode on the light-emitting structure, wherein the electrode includes an ohmic contact layer that contacts the compound semiconductor layer, a first barrier layer on the ohmic contact layer, a conductive layer including copper on the first barrier layer, a second barrier layer on the conductive layer, and a bonding layer on the second barrier layer. | 04-21-2011 |
20110089452 | SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor light-emitting device is provided. The semiconductor light-emitting device may include a light-emitting structure, an electrode, a reflective layer, a conductive support member, and a channel layer. The light-emitting structure may include a plurality of compound semiconductor layers. The electrode may be disposed on the compound semiconductor layer. The reflective layer may be disposed under the compound semiconductor layer. The conductive support member may be disposed under the reflective layer. The channel layer may be disposed along a bottom edge of the compound semiconductor layer. | 04-21-2011 |
Nag Jong Choi, Gwangju KR
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20110140143 | LIGHT EMITTING DIODE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Disclosed is a light emitting diode package, including a metal body including a cavity for receiving a light emitting diode therein, a lens mount for mounting thereon a lens through which light is transmitted, a heat sink for dissipating heat, a lead insertion recess formed on a bottom surface of the metal body so that a lead is inserted therein, and a bonding hole formed to communicate with the lead insertion recess and passing through the cavity of the metal body; and a lead seated into the lead insertion recess of the metal body and insulation bonded to the bottom surface of the metal body by means of an insulating binder, so that an insulation type bonding relationship between the metal body and the lead is maintained stable. A method of manufacturing the light emitting diode package is also provided. | 06-16-2011 |
Nam Gu Choi, Gwangju KR
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20150159934 | REFRIGERATOR - A rear plate of a refrigerator includes a base section formed at the outside of the rear plate while being flat, and a formed section formed to protrude from the base section toward the inner case through a foaming process. Outer equipment is installed at the formed section, to be disposed more inside than the base section and, as such, it is possible to protect the outer equipment from external impact. In addition, it is possible to achieve an improvement in rear appearance design of the refrigerator and an enhancement in space utility of the refrigerator. | 06-11-2015 |
Ran Choi, Gwangju KR
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20140024524 | METHOD FOR MANUFACTURING PALLADIUM-PLATINUM CORE-SHELL CATALYSTS FOR FUEL CELLS - The present invention discloses a method for manufacturing a palladium-platinum core-shell catalyst for a fuel cell. More specifically, the present invention discloses a method for manufacturing a palladium-platinum core-shell catalyst for a fuel cell, in which a platinum shell nano particle epitaxially grown on a palladium core is synthesized and dipped in a carbon support, thereby manufacturing the palladium-platinum core-shell catalyst for a hydrogen fuel cell, such that mass production of a uniform size is possible. Additionally, the techniques herein reduce the requirement for the use of expensive metal, which reduces the manufacturing cost of a fuel cell. Moreover, is the techniques herein are applicable to the field of high-efficiency hydrogen fuel cells having superior electric catalytic activity and durability. | 01-23-2014 |
Sang Geun Choi, Gwangju KR
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20100037631 | ICE MAKER AND METHOD, AND REFRIGERATOR HAVING THE SAME - Disclosed herein are an ice maker and method including an ice container to store ice, and a refrigerator having the same. The ice maker includes an ice making unit that receives water and produces ice from the water, a first ice container that receives the ice separated from the ice making unit, and an ice forwarding unit disposed at one side of the first ice container to guide the ice to be discharged to the outside. | 02-18-2010 |
Sang Joe Choi, Gwangju KR
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20140239522 | REFRIGERATOR EQUIPPED WITH APPARATUS FOR PRODUCING CARBONATED WATER - A refrigerator is disclosed. The refrigerator includes a body, a storage chamber defined in the body while having an opened front side, a door to open or close the opened front side of the storage chamber, a water tank to store clean water, a carbonated water production module mounted to a back surface of the door, the carbonated water production module including a carbon dioxide gas cylinder stored with carbon dioxide gas, a carbonated water tank to produce carbonated water through mixing of the clean water with the carbon dioxide gas, and a gas regulator to adjust a pressure of the carbon dioxide gas flowing from the carbon dioxide gas cylinder to the carbonated water tank, and a safety device to selectively move the carbon dioxide gas cylinder toward or away from the gas regulator, thereby coupling or separating the carbon dioxide gas cylinder to or from the gas regulator. | 08-28-2014 |
Seok Ju Choi, Gwangju KR
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20140034881 | CARBON NANOTUBE-RADICAL POLYMER COMPOSITE AND PRODUCTION METHOD THEREFOR - The present invention relates to a carbon nanotube-radical polymer composite and to a production method therefor, and relates to a polymer composite comprising carbon nanotubes and a radical polymer; being a carbon nanotube-radical polymer composite that has outstanding electrical conductivity and transparency and can be used in permeable batteries or flexible batteries, and also relates to a production method therefor. | 02-06-2014 |
Seok-Yong Choi, Gwangju KR
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20130024955 | METHOD FOR DETERMINING GENOTOXICITY USING NON-FLUORESCENT PROTEINS - The present invention relates to a method for determining a genotoxicity of a test substance, comprising the steps of: (a) transforming a fish with a nucleotide sequence encoding a non-fluorescent fluorescence protein with a mutation; (b) treating a test substance to the transformed fish; and (c) measuring a fluorescence in the test substance-treated fish, wherein the fluorescence is generated by reversion of the non-fluorescent fluorescence protein to the fluorescence protein due to a back mutation of the nucleotide sequence in the test substance-treated fish. According to the present invention, MutaFish system, Zebrafish ( | 01-24-2013 |
Seongmin Choi, Gwangju KR
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20140184577 | TRANSPARENT DISPLAY APPARATUS AND METHOD FOR CONTROLLING THE SAME - There are provided a transparent display apparatus and a method for controlling the same. The transparent display apparatus includes a transparent display unit that includes an emissive area and a transmissive area and is configured to display a video, an optical sensor configured to measure the amount of light, and a light shielding unit that is disposed on one surface of the transparent display unit and is configured to adjust transmittance on the basis of the amount of light. | 07-03-2014 |
20150154908 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF COMPENSATING FOR IMAGE QUALITY THEREOF - Provided is an organic light emitting diode (OLED) display device including a plurality of pixels to display images, each of the pixels including an OLED, a driving transistor connected to the OLED, and a switching transistor configured to supply data signals to the OLED, the device including: a sensor configured to sense a change amount of a mobility of the driving transistor; a compensation value calculator configured to obtain a change amount of a threshold voltage of the driving transistor based on the sensed change amount of the mobility; and a data compensator configured to adjust the data signals based on the sensed change amount of mobility and the obtained change amount of the threshold voltage. | 06-04-2015 |
Se Weon Choi, Gwangju KR
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20140154130 | Die Casting Aluminum Alloys for Heat-Dissipating Plates - Provided is an aluminum alloy, and particularly, a die casting aluminum alloy for a heat sink, which includes 0.01 to 0.5 wt % of Cu, 0.3 to 0.6 wt % of Fe, 1.0 to 1.5 wt % of Si, and thus may enhance heat dissipation and castability. | 06-05-2014 |
Suk Hoon Choi, Gwangju KR
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20160068654 | Electrospinning solution Composition for Preparing Silver Nanofiber - The present invention relates to an electrospinning solution composition for fabricating a silver nanofiber, and more particularly to an electrospinning solution composition for fabricating a silver nanofiber through a spinning process, the electrospinning solution including a silver precursor, a reducing agent, a viscosity modifier, and a solvent wherein the viscosity modifier includes one selected from the group consisting of dextran, alginate, chitosan, guar gum, starch, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, xanthan gum, a carboxyvinyl polymer, pectin, sodium alginate, and a combination thereof. | 03-10-2016 |
Su Na Choi, Gwangju KR
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20090153309 | SYNCHRONIZATION METHOD BETWEEN READER AND TAG - Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time. | 06-18-2009 |
20090153329 | METHOD OF GENERATING ACTIVATION CODE FOR RADIO FREQUENCY IDENTIFICATION TAG - Disclosed is a method of generating an activation code of a Radio Frequency Identification (RFID) tag including calculating K satisfying a condition that N is set to exceed 2 | 06-18-2009 |
Sung Pil Choi, Gwangju KR
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20150137674 | REFRIGERATOR - A refrigerator may prevent an internal door from being opened together by an inertial force when an external door is opened, and may also prevent the external door from being opened together by an inertial force when the internal door is opened. The refrigerator includes a main body, a storage chamber provided in the main body so that a front surface thereof is opened, an internal door rotatably provided at a front surface of the main body so as to open and close the storage chamber and having an opening part in which a plurality of door guards are provided, an external door rotatably provided at a front surface of the internal door so as to open and close the opening part, and an internal door opening prevention device allowing or preventing opening of the internal door according to whether the external door is opened or closed. | 05-21-2015 |
Tae-Sun Choi, Gwangju KR
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20090168054 | 3-D Shape Measuring Method for Auto-Grinding Equipment of LCD Color Filter and 3-D Shape Measuring Apparatus for the Same - Provided are a three-dimensional image measuring method and apparatus for an LCD color filter automatic grinder. It is possible to measure a three-dimensional image of an LCD color filter, even though textures for recovering the three-dimensional image are insufficient, by irradiating illumination passed through a patterned filter to the LCD color filter. In addition, it is possible to measure a three-dimensional image of an LCD color filter by obtaining a plurality of image sequences along an optical axis of a camera composed of CCD or CIS. Illumination is irradiated to an LCD color filter to be measured through a patterned filter. | 07-02-2009 |
20150117728 | METHOD AND APPARATUS FOR GENERATING 3D KNEE JOINT IMAGE - Disclosed herein are a method and an apparatus for generating a 3D knee joint image. According to an exemplary embodiment of the present invention, a method for generating a 3D knee joint image includes: generating a statistical shape model by using previously generated sample knee bone images; generating a knee joint bone image by segmenting a bone region from an input knee image using the statistical shape model; generating a keen joint cartilage image by segmenting a cartilage region from the knee joint bone image; and generating a 3D knee joint image for the input knee image by composing the knee joint bone image with the knee joint cartilage image. According to the exemplary embodiments of the present invention, it is possible to more rapidly and accurately generate the 3D knee joint image. | 04-30-2015 |
Won Ii Choi, Gwangju KR
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20120087859 | NANOCARRIER HAVING ENHANCED SKIN PERMEABILITY, CELLULAR UPTAKE AND TUMOUR DELIVERY PROPERTIES - The present invention relates to a biopolymer-modified nanocarrier in which chitosan is bound to a water-soluble biocompatible polymer that has been crosslinked via a photo-crosslinkable functional group; wherein the chitosan-modified nanocarrier has a diameter which changes in accordance with changes in temperature, has enhanced skin permeability or cellular uptake and selective delivery to cancer tissue as compared with a bare nanocarrier to which chitosan has not been bound, and exhibits characteristics that are advantageous in photothermal therapy. The chitosan-modified nanocarrier of the present invention exhibits highly superior efficacy as a transdermal carrier, since the skin permeability is enhanced to a significant level as compared with a bare nanocarrier that has no chitosan. The chitosan-modified nanocarrier of the present invention can be advantageous in the imaging and photothermal therapy of tumour cells and cancer cells, since the cellular uptake by tumour cells and cancer cells is substantially improved. | 04-12-2012 |
Wonil Choi, Gwangju KR
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20150179369 | BUTTON ASSEMBLEY OF ENGINE START/STOP SWITCH FOR VEHICLES AND ENGINE START/STOP SWITCH FOR VEHICLES INCLUDING THE SAME - A button part of an engine start/stop switch for a vehicle includes a button of which an end portion is exposed to the outside to be pressed for start or stop of an engine; a slider which is arranged at the front end portion of the button to slide along the inner circumferential surface of a housing; and a coil antenna which is arranged outside the button and the slider to send driving radio waves to a transponder of a portable device that a driver carries. | 06-25-2015 |
Won Sik Choi, Gwangju KR
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20150124445 | LIGHT EMITTING DIODE LIGHT BOX - There is provided a light emitting box, comprising a main body having an open region in upper part, closed sides and a space in the main body; a light emitting module placed on the bottom of the space of the main body, having a plurality of light emitting units for emitting the light through the open region; a diffusion sheet placed in the upper part, diffusing the light directly or indirectly from the light emitting module; and reflecting plate placed in at least one side of sides, reflecting the light from the light emitting module to the diffusion sheet. | 05-07-2015 |
Wonsung Choi, Gwangju KR
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20140034881 | CARBON NANOTUBE-RADICAL POLYMER COMPOSITE AND PRODUCTION METHOD THEREFOR - The present invention relates to a carbon nanotube-radical polymer composite and to a production method therefor, and relates to a polymer composite comprising carbon nanotubes and a radical polymer; being a carbon nanotube-radical polymer composite that has outstanding electrical conductivity and transparency and can be used in permeable batteries or flexible batteries, and also relates to a production method therefor. | 02-06-2014 |
Wook-Jin Choi, Gwangju KR
Patent application number | Description | Published |
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20150117728 | METHOD AND APPARATUS FOR GENERATING 3D KNEE JOINT IMAGE - Disclosed herein are a method and an apparatus for generating a 3D knee joint image. According to an exemplary embodiment of the present invention, a method for generating a 3D knee joint image includes: generating a statistical shape model by using previously generated sample knee bone images; generating a knee joint bone image by segmenting a bone region from an input knee image using the statistical shape model; generating a keen joint cartilage image by segmenting a cartilage region from the knee joint bone image; and generating a 3D knee joint image for the input knee image by composing the knee joint bone image with the knee joint cartilage image. According to the exemplary embodiments of the present invention, it is possible to more rapidly and accurately generate the 3D knee joint image. | 04-30-2015 |
Wooyeol Choi, Gwangju KR
Patent application number | Description | Published |
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20150078213 | MEDIUM ACCESS CONTROL METHOD IN SINGLE CHANNEL WIRELESS NETWORK ENVIRONMENT - Disclosed herein is a medium access control method in a single channel wireless network environment, which is a medium access control method of a receiving side terminal capable of communicating in a full-duplex communication scheme. The medium access control method includes: receiving a frame header of a data frame; and transmitting an ACK frame in response to the frame header. | 03-19-2015 |
20150078214 | ACCESS POINT FOR WIRELESS LAN AND MEDIUM ACCESS CONTROL METHOD THEREOF - In a medium access control method of an access point for a wireless LAN, the access point is capable of full-duplex communication, and the medium access control method includes receiving a frame header of a first data frame from a first terminal, and transmitting a second data frame to a second terminal while the first data frame is received from the first terminal. | 03-19-2015 |
20150131574 | WIRELESS COMMUNICATION SYSTEM AND PACKET COMMUNICATION THEREFOR - Disclosed is a wireless communication system including: an access point; and at least two wireless devices capable of transmitting packets to the access point at the same time, wherein the access point receives a packet from at least one of the at least two wireless devices within multi-packet reception (MPR) capability after determining whether packet reception is beyond the multi-packet reception (MPR) capability, when receiving a request to send (RTS) from one of the at least two wireless devices. Thus, it is possible to obtain maximum throughput by optimally using the MPR capability and stably perform packet communication even though the number of wireless devices changes or the wireless device is moved. | 05-14-2015 |
Yeong-Tag Choi, Gwangju KR
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20160075458 | APPARATUS FOR AUTOMATICALLY PACKAGING SHEET MASK - An apparatus for automatically packaging a sheet mask, and more particularly, comprises: a housing having an aperture with a predetermined shape, at the upper part, for withdrawing a sheet mask; a sheet mask supply portion, provided to one side of the housing, for supplying a layered sheet mask by entering the lower part of the aperture; a sheet mask folding portion, provided at the upper part of the housing, for folding the sheet mask into a predetermined shape; a sheet mask attachment/detachment portion; a pouch supply portion; and a sheet mask insertion portion. | 03-17-2016 |
Yongdoo Choi, Gwangju KR
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20100189657 | INTRAMOLECULARLY QUENCHED FLUOROCHROME CONJUGATES AND METHODS OF USE - The invention provides a quenched fluorochrome conjugate and methods of use thereof in the detection and treatment of disorders characterized by unwanted cellular proliferation including cancer. | 07-29-2010 |
Yong Hun Choi, Gwangju KR
Patent application number | Description | Published |
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20110140143 | LIGHT EMITTING DIODE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Disclosed is a light emitting diode package, including a metal body including a cavity for receiving a light emitting diode therein, a lens mount for mounting thereon a lens through which light is transmitted, a heat sink for dissipating heat, a lead insertion recess formed on a bottom surface of the metal body so that a lead is inserted therein, and a bonding hole formed to communicate with the lead insertion recess and passing through the cavity of the metal body; and a lead seated into the lead insertion recess of the metal body and insulation bonded to the bottom surface of the metal body by means of an insulating binder, so that an insulation type bonding relationship between the metal body and the lead is maintained stable. A method of manufacturing the light emitting diode package is also provided. | 06-16-2011 |
Yoon Sik Choi, Gwangju KR
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20120122350 | BOARD-TO-BOARD-TYPE CONNECTOR - Disclosed is a board-to-board-type connector including: a female connector holder having an upper surface with an engagement opening with which a plurality of female terminals are engaged in symmetrical rows; and a male connector holder having an upper rim from which an engagement protrusion protrudes such that a plurality of male terminals are arranged in symmetrical rows and engaged with the engagement protrusion to form electrical contact with the female terminals, the male connector holding being fitted to the engagement opening of the female connector holder, wherein the female terminal includes a U-shaped receiving portion accommodated in the engagement opening and first stopper protrusions protruding toward an inside of the engagement opening from intermediate portions of both side surfaces of the receiving portion, the male terminal includes a U-shaped insertion portion formed along an outer peripheral surface of the engagement protrusion and second stopper protrusions symmetrically protruding toward an outside direction of the engagement protrusion from intermediate portions of both side surfaces of the insertion portion, and the female terminal is attached/detached to/from the male terminal by elastic deformation of the first stopper protrusions and the second stopper protrusions. Consequently, the board-to-board-type connector of the present invention is configured such that the female terminals are symmetrically deformed in the left and right directions when the female terminals are attached/detached to/from the male terminals. Thus, stresses being applied to the female terminals during attachment/detachment are distributed in the left and right directions, and therefore the engagement between the female terminals and the male terminals is stably maintained even when the connector is used over a long period of time. | 05-17-2012 |
Young Jin Choi, Gwangju KR
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20150306704 | DEVICE FOR MANUFACTURING BREATHABLE FILM BY USING LASER AND METHOD FOR MANUFACTURING SAME - Disclosed are a gas-penetration film which is fabricated by processing grooves by irradiating a pulsed laser beam onto a moving film, an apparatus of fabricating the same, and a method of fabricating the same. A method of fabricating a gas-penetration film which irradiates a pulsed laser beam onto a moving film to continuously process grooves, includes splitting the pulsed laser beam; irradiating split pulsed laser beams onto the moving film at a constant interval to process multi-grooves; and controlling a movement speed of the moving film so as to repeatedly process a groove, which is adjacent to the groove processed by the split pulsed laser beam, by the pulsed laser beam. Therefore, the groove processings are repeatedly performed on the same groove to increase a depth of the groove. | 10-29-2015 |
Young Sik Choi, Gwangju KR
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20090131188 | APPARATUS FOR TRAINING A GOLF SWING - Disclosed is a golf swing training apparatus, which allows a user to learn a stable swing motion by acquiring a correct swing posture in performing a swing motion and to train turning motion of his/her shoulder and a rotating motion of his/her waist in a natural manner. The golf swing training apparatus includes: a body | 05-21-2009 |