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Do-Hyun

Do Hyun Kang, Changwon KR

Patent application numberDescriptionPublished
20100259112STRUCTURE FOR LINEAR AND ROTARY ELECTRIC MACHINES - Disclosed herein is a structure for linear and rotary electric machines. The present invention provides a modular mover structure which includes coils that have an electrical phase difference of 180°, so that the path of magnetic flux is shortened, thus reducing the size of the machine and mitigating the back-EMF unbalance. Furthermore, the modular mover structure can be modified into various shapes. For example, when a skew structure is applied to a mover or stator iron core, the force ripples in an electric machine can be reduced. In addition, when a hinge structure is applied to a modular mover iron core, the mover can move in a linear and curved manner. Moreover, the structure of the present invention can be applied to a rotary electric machine. In this case, because the number of poles can be easily increased, a low speed high torque direct drive type rotary electric machine can be realized.10-14-2010
20100327670DOUBLY SALIENT PERMANENT MAGNET ELECTRIC MACHINE - Disclosed herein is a linear, curved or rotary electric machine. The electric machine includes first and second movers which are adjacent to each other and have a phase angle difference of 60° therebetween. The first mover includes phases U, V and W and the second mover includes phases /U, /V and /W. The electric machine of the present invention can reduce pulsations of thrust caused by end effect. In particular, in the case where the stator includes permanent magnets having the same poles and salient poles which alternate with the permanent magnets, the number of permanent magnets used can be reduced to half of that of a conventional linear electric machine.12-30-2010

Do Hyun Kwon, Ulsan KR

Patent application numberDescriptionPublished
20110217741Enhanced Promoter and Method for Producing L-Lysine Using the Same - The present invention provides a nucleic acid molecule having enhanced promoter activity, which is operably linked to a gene encoding aspartate aminotransferase and derived from 09-08-2011

Do Hyun Kwon, Ulsan-Si KR

Patent application numberDescriptionPublished
20100143984CORYNEBACTERIA HAVING ENHANCED L-LYSINE PRODUCTIVITY AND A METHOD OF PRODUCING L-LYSINE USING THE SAME - A variant of 06-10-2010

Do Hyun Nam, Daejon KR

Patent application numberDescriptionPublished
20130065917SALT OF NAPHTHYRIDINE CARBOXYLIC ACID DERIVATIVE - 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.03-14-2013

Do-Hyun Bae, Seoul KR

Patent application numberDescriptionPublished
20090074100APPARATUS AND METHOD FOR DETECTING CYCLIC PREFIX LENGTH IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for detecting a Cyclic Prefix (CP) length in a mobile communication system are provided. The apparatus includes first, second, third and fourth correlators, an average unit, and a length detector. The first, second, third and fourth correlators respectively correlate first, second, third and fourth CP parts within a frame boundary. The average unit averages the correlation values of the first, second, third and fourth correlators. The length detector determines the CP as an extended CP if the average value minus the correlation value of the fourth correlator is greater than a first threshold value. Accordingly, less memory may be required to determine a CP length as compared to the conventional art.03-19-2009

Do-Hyun Jin, Chungbuk KR

Patent application numberDescriptionPublished
20100064939SILOXANE BASED COATING COMPOSITION HAVING EXCELLENT DYEABILILTY ABRASION RESISTANCE, GLOSSINESS AND TRANSPARENCY,AND A PREPARATION METHOD THEREOF, AND AN OPTICAL LENZ COATED BY SAID COATING COMPOSITION - A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.03-18-2010

Do-Hyun Kim, Seongnam-Si KR

Patent application numberDescriptionPublished
20100065841THIN FILM TRANSISTOR ARRAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A TFT array substrate includes a semiconductive oxide layer disposed on an insulating substrate and including a channel portion, a gate electrode overlapping the semiconductive oxide layer, a gate insulating layer interposed between the semiconductive oxide layer and the gate electrode, and a passivation layer disposed on the semiconductive oxide layer and the gate electrode. At least one of the gate insulating layer and the passivation layer includes an oxynitride layer, and the oxynitride layer has a higher concentration of oxygen than that of nitrogen in a location of the oxynitride layer closer to the semiconductive oxide layer.03-18-2010
20100276686THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF FABRICATING THE SAME - A thin film transistor (TFT) substrate and a method of fabricating the same are provided. The thin film transistor substrate may have low resistance characteristics and may have reduced mutual diffusion and contact resistance between an active layer pattern and data wiring. The thin film transistor substrate may include gate wiring formed on an insulating substrate. Oxide active layer patterns may be formed on the gate wiring and may include a first substance. Data wiring may be formed on the oxide active layer patterns to cross the gate wiring and may include a second substance. Barrier layer patterns may be disposed between the oxide active layer patterns and the data wiring and may include a third substance.11-04-2010
20110001137THIN-FILM TRANSISTOR DISPLAY PANEL AND METHOD OF FABRICATING THE SAME - Provided is a thin-film transistor (TFT) display panel having improved electrical and reliability properties and a method of fabricating the TFT display panel. The TFT display panel includes gate wiring formed on a substrate; an oxide active layer pattern formed on the gate wiring; data wiring formed on the oxide active layer pattern to cross the gate wiring; a passivation layer formed on the oxide active layer pattern and the data wiring and made of nitrogen oxide; and a pixel electrode disposed on the passivation layer.01-06-2011
20110031117SPUTTERING TARGET APPARATUS - A sputtering target apparatus is provided. The sputtering target apparatus includes a first target assembly including a first target array having a first target, a second target disposed adjacent to the first target, and a first target dividing region disposed between the first and second targets, the first target assembly extending along a first direction, wherein the first target dividing region has a longitudinal cross-section that is oblique with respect to the first direction.02-10-2011
20110068340Thin Film Transistor Array Panel and Method for Manufacturing the Same - A thin film transistor array panel includes an insulating substrate. A gate line is formed on the insulating substrate and has a gate electrode. A gate insulating layer is formed on the gate line. A semiconductor layer is formed on the gate insulating layer and overlaps the gate electrode. Diffusion barriers are formed on the semiconductor layer and contain nitrogen. A data line crosses the gate line and has a source electrode partially contacting the diffusion barriers and a drain electrode partially contacting the diffusion barriers and facing the source electrode. The drain electrode is on the gate electrode. A pixel electrode is electrically connected to the drain electrode.03-24-2011
20110114940THIN FILM DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - A thin film transistor array panel includes: a substrate; a gate line disposed on the substrate and including a gate electrode; a gate insulating layer disposed on the gate line; an semiconductive oxide layer disposed on the gate insulating layer; a data line disposed on the semiconductive oxide layer and including a source electrode; a drain electrode facing the source electrode on the semiconductive oxide layer; and a passivation layer disposed on the data line. The semiconductive oxide layer is patterned with chlorine (Cl) containing gas which alters relative atomic concentrations of primary semiconductive characteristic-providing elements of the semiconductive oxide layer at least at a portion where a transistor channel region is defined.05-19-2011
20110147740DISPLAY SUBSTRATE, METHOD OF MANUFACTURING THE SAME - The present invention discloses a thin film transistor (TFT), a method for manufacturing the TFT, and a display substrate using the TFT that may prevent degradation of the characteristics of an oxide semiconductor contained in the TFT by blocking external light from entering a channel region of the oxide semiconductor. The TFT comprises an oxide semiconductor layer; a protective layer disposed on the oxide semiconductor layer and overlapping a channel region of the oxide semiconductor layer; an opaque layer disposed between the oxide semiconductor layer and the protective layer; a source electrode contacting a first side of the oxide semiconductor layer; a drain electrode contacting a second side of the oxide semiconductor layer and facing the source electrode with the channel region disposed between the drain electrode and the source electrode; a gate electrode to apply an electric field to the oxide semiconductor layer; and a gate insulating layer disposed between the gate electrode and the oxide semiconductor layer.06-23-2011
20110175082DISPLAY SUBSTRATE - A display substrate is provided. The display substrate includes a gate interconnection disposed on an insulating substrate, an oxide semiconductor pattern disposed on the gate interconnection and including an oxide semiconductor, and a data interconnection disposed on the oxide semiconductor pattern to interconnect the gate interconnection. The oxide semiconductor pattern includes a first oxide semiconductor pattern having a first oxide and a first element and a second oxide semiconductor pattern having a second oxide.07-21-2011
20110193076THIN FILM TRANSISTOR PANEL AND FABRICATING METHOD THEREOF - A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.08-11-2011
20120037910DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A display substrate includes; a gate pattern including a gate electrode disposed on a substrate, a gate insulation layer disposed on the substrate and the gate pattern, an insulation pattern including; a first thickness part disposed on a first area of the gate insulation layer overlapping the gate electrode and a second thickness part disposed on a second area of the gate insulation layer adjacent to the first area, an oxide semiconductor pattern disposed on the first thickness part of the first area, an etch stopper disposed on the oxide semiconductor pattern, a source pattern including a source electrode and a drain electrode which contact the oxide semiconductor pattern, and a pixel electrode which contacts the drain electrode.02-16-2012
20120211753DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE DISPLAY SUBSTRATE - In a display substrate and a method of manufacturing the display substrate, the display substrate includes a data line, a channel pattern, an insulating pattern and a pixel electrode. The data line extends in a direction on a base substrate. The channel pattern is disposed in a separate region between an input electrode connected to the data line and an output electrode spaced apart from the input electrode. The channel pattern makes contact with the input electrode and the output electrode on the input and output electrodes. The insulating pattern is spaced apart from the channel pattern on the base substrate and includes a contact hole exposing the output electrode. The pixel electrode is formed on the insulating pattern to make contact with the output electrode through the contact hole. Thus, a damage of the oxide semiconductor layer may be minimized and a manufacturing process may be simplified.08-23-2012
20120319112THIN FILM TRANSISTOR, THIN FILM TRANSISTOR PANEL AND METHODS FOR MANUFACTURING THE SAME - A thin film transistor includes a gate electrode, a gate insulating layer, an oxide semiconductor layer on the gate insulating layer, and a drain electrode and a source electrode on the oxide semiconductor layer and spaced apart from each other. The drain electrode includes a first drain sub-electrode on the oxide semiconductor layer, and a second drain sub-electrode on the first drain sub-electrode. The source electrode includes a first source sub-electrode on the oxide semiconductor layer, and a second source sub-electrode on the first source sub-electrode. The first drain sub-electrode and the first source sub-electrode include gallium zinc oxide (GaZnO), and the second source sub-electrode and the second drain sub-electrode include a metal atom.12-20-2012
20130009151THIN FILM TRANSISTOR ARRAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A TFT array substrate includes a semiconductive oxide layer disposed on an insulating substrate and including a channel portion, a gate electrode overlapping the semiconductive oxide layer, a gate insulating layer interposed between the semiconductive oxide layer and the gate electrode, and a passivation layer disposed on the semiconductive oxide layer and the gate electrode. At least one of the gate insulating layer and the passivation layer includes an oxynitride layer, and the oxynitride layer has a higher concentration of oxygen than that of nitrogen in a location of the oxynitride layer closer to the semiconductive oxide layer.01-10-2013
20130032793THIN FILM TRANSISTOR ARRAY PANEL AND MANUFACTURING METHOD THEREOF - Provided is a thin film transistor array panel. The thin film transistor array panel according to exemplary embodiments of the present invention includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.02-07-2013

Patent applications by Do-Hyun Kim, Seongnam-Si KR

Do-Hyun Kim, Daejeon-City KR

Patent application numberDescriptionPublished
20090140239COMPOUNDS FOR ORGANIC SEMICONDUCTOR DEVICE HAVING TRIAZINE GROUP, ORGANIC SEMICONDUCTOR THIN FILM AND ORGANIC SEMICONDUCTOR DEVICE COMPRISING THE SAME, AND METHODS OF PREPARING THEM - A compound for organic semiconductor devices having a triazine group, an organic semiconductor thin film and an organic semiconductor device comprising the same, and methods of preparing them are provided. The compound for organic semiconductor devices is represented by the following Formula:06-04-2009
20100241391APPARATUS AND METHOD FOR MEASURING THE VELOCITY AND ACCELERATION OF A VEHICLE USING SAD ALGORITHM - Provided are a single-board type vehicle driving information measuring apparatus and method using a sum of absolute difference (SAD) hardware accelerator. In the vehicle driving information measuring apparatus and method, time differences between vehicle sensing signals sensed by two or more sensing units are accurately calculated in real time by the SAD hardware accelerator, and the velocity and acceleration of a vehicle can be accurately calculated based on the accurate time differences between the vehicle sensing signals. The vehicle driving information measuring apparatus is operated in two separate modes, that is, a vehicle sensing mode and a velocity measuring mode. Accordingly, power consumption of the apparatus can be minimized. In addition, the apparatus can be provided with a wireless transceiver, so that the apparatus can be constructed and operated without external cables. Further, functional blocks of the apparatus can be powered separately.09-23-2010

Patent applications by Do-Hyun Kim, Daejeon-City KR

Do-Hyun Kim, Yongin-City KR

Patent application numberDescriptionPublished
20110261287LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A liquid crystal display device and a method of manufacturing the same, the device including a liquid crystal display panel, the liquid crystal display panel including substrates facing each other and a liquid crystal layer therebetween; a backlight unit below the liquid crystal display panel, the backlight unit being for emitting light toward the liquid crystal display panel; a filling that fills defect holes on surfaces of the substrates, which surfaces are relatively remote from the liquid crystal layer, the filling having horizontally even surfaces with respect to the surfaces of the substrates, and a cover member disposed over the defect holes filled with the filling.10-27-2011
20120212928FLAT DISPLAY DEVICE - A flat display device includes a flat display module that produces an image. The device also includes a reflective sheet at a rear side of the flat display module, a support member on the reflective sheet, and an optical adhesive film adhered to the front surface of the flat display module, to sides of the flat display module, and to a portion of a back of the support member that is opposite the reflective sheet. The image is produced on the front surface of the flat display module and is emitted through the optical adhesive film.08-23-2012

Do-Hyun Kim, Incheon KR

Patent application numberDescriptionPublished
20120175756SEMICONDUCTOR PACKAGES HAVING LEAD FRAMES - Semiconductor packages having lead frames include a lead frame, which supports a semiconductor chip and is electrically connected to the semiconductor chip by bonding wires, and a molding layer encapsulating the semiconductor chip. The lead frame includes first lead frames extending in a first direction and second lead frames extending in a second direction. The first lead frames may run across the semiconductor chip and support the semiconductor chip and the second lead frames may run across the bottom surface of the semiconductor chip.07-12-2012

Do-Hyun Kwon, Suwon-Si KR

Patent application numberDescriptionPublished
20090075438METHOD OF FABRICATING ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - In a method of fabricating organic light emitting diode display, a planarization layer is annealed, cured, provided with an ashing treatment, and surface-treated to reduce roughness of the planarization layer. Therefore, it is possible to improve reduce problems such as a decrease in reflectivity and variation of color coordinates of the organic light emitting diode display due to the roughness of the planarization layer.03-19-2009
20090137074Method of manufacturing display device - A method of manufacturing a display device includes: preparing a substrate including a first area and a second area, forming a first layer on the first area and the second area, forming a second layer on the first layer of the first area, respectively forming a first electrode layer on the second layer of the first area and the first layer of the second area, forming a reflective layer on the first electrode layer of the first area, and forming a second electrode layer on the reflective layer.05-28-2009
20090267074ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A organic light emitting display device includes a thin film transistor (TFT) having a gate electrode, a source electrode and a drain electrode which are insulated from the gate electrode, and a semiconductor layer which is insulated from the gate electrode and which contacts each of the source electrode and the drain electrode; and a pixel electrode electrically connected to one of the source electrode and the drain electrode. The gate electrode is made up of a first conductive layer and a second conductive layer on the first conductive layer, and the pixel electrode is formed of the same material as the first conductive layer of the gate electrode on a same layer as the first conductive layer of the gate electrode.10-29-2009
20090278131Thin film transistor array arrangement, organic light emitting display device having the same, and manufacturing method thereof - A thin film transistor (TFT) array arrangement, an organic light emitting display device that includes the TFT array arrangement and a method of making the TFT array arrangement and the organic light emitting display device. The method seeks to reduce the number of masks used in the making of the TFT array arrangement by employing half-tone masks that are followed by a two step etching process and by forming layers of the capacitor simultaneous with the formation of layers of the source, drain and pixel electrodes. As a result, individual layers of the capacitor are on the same level and are made of the same material as ones of the layers of the source, drain and pixel electrodes. The capacitor has three electrodes spaced apart by two separate dielectric layers to result in an increased capacity capacitor without increasing the size of the capacitor.11-12-2009
20100045173ORGANIC LIGHT EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY APPARATUS - An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.02-25-2010
20120220061ORGANIC LIGHT EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY APPARATUS - An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.08-30-2012
20120288975ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting display device (OLED) and a method of fabricating the same. The OLED includes: a substrate; a thin film transistor on the substrate and including a source electrode and a drain electrode; a first insulating layer on the substrate; a second insulating layer on the first insulating layer and including a trench; a via hole formed in the trench over the first and second insulating layers and exposing a portion of the source electrode or the drain electrode; a first electrode in the trench and connected to one of the source electrode and the drain electrode through the via hole; a pixel defining layer on the first electrode and having an opening exposing the first electrode; an organic layer in the opening and having at least an organic emission layer; and a second electrode on an entire surface of the substrate having the organic layer.11-15-2012

Patent applications by Do-Hyun Kwon, Suwon-Si KR

Do-Hyun Kwon, Seoul KR

Patent application numberDescriptionPublished
20090214043KEY DISTRIBUTION METHOD AND AUTHENTICATION SERVER - A method of and an authentication server for distributing a key are disclosed. According to an embodiment of the present invention, the method of distributing a key, which is distributed by an authentication server connected with wireless terminals through a communication network, for encrypting and decrypting data in accordance with providing a service can include: obtaining characteristic information by decrypting encrypted characteristic information that has been received from each of n number of wireless terminals; generating a random key; generating a group key used for encrypting and decrypting data in accordance with providing a service; and generating a distribution key by using the random key, the group key and the characteristic information, and transmitting the distribution key to each wireless terminal.08-27-2009

Do-Hyun Park, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20090020311HALOGEN-FREE FLAME RETARDANT COMPOSITION FOR CABLE COVERING MATERIAL AND CABLE FOR RAILWAY VEHICLES USING THE SAME - Disclosed are a composition for a cable-covering material used in railway vehicles, and a cable for railway vehicles using the same. The present invention provides the halogen-free flame retardant composition including 100 parts by weight of a base resin including ethylene-vinylacetate copolymers; 60 to 250 parts by weight of mixed metal hydroxide as a halogen-free flame; 1 to 30 parts by weight of a flame-retardance auxiliary; 0.5 to 5 parts by weight of a silane-based coupling agent; 0.5 to 8 parts by weight of a cross-linking formulation; and 3 to 15 parts by weight of a cross-linking agent. The composition according to the present invention may be used in the cable-covering material for railway vehicles under the extreme conditions because it has excellent properties such as resistance against dynamic pressure at high temperature and durability, as well as low smoke and flame retardance upon its combustion.01-22-2009
20090090536FLAME RETARDANT COMPOSITION FOR CABLE COVERING MATERIAL AND OCEAN CABLE USING THE SAME - Disclosed are a flame retardant composition for a cable covering material and an ocean cable using the same. The flame retardant composition of the present invention includes 100 parts by weight of a base resin; 30˜150 parts by weight of a flame retardant; 1-30 parts by weight of a cold resistant plasticizer; 0.5˜10 parts by weight of a silane coupling agent; 0.5-8 parts by weight of a co-crosslinking agent; and 3-20 parts by weight of a crosslinking agent, and the ocean cable using the same. The composition for a cable covering material according to present invention has an excellent oil resistance to oil components without deteriorating mechanical properties, and has a superior durability such as a cold resistance at −40° C. as well as minimally generates toxic gases upon firing and has an excellent flame retardancy.04-09-2009
20090246520COMPOSITION FOR PRODUCING HIGH HEAT RESISTANCE INSULATING MATERIAL AND INSULATED CABLE HAVING THE SAME - The present invention relates to a composition for producing a high heat resistance insulating material, and an insulated cable having the same. A composition for producing a high heat resistance insulating material according to the present invention comprises 0.5 to 10 parts by weight of a crosslinking agent based on 100 parts by weight of a fluorine-based rubber. The present invention provides an insulated cable that is capable of sending more electric current at least twice than an allowable current capacity based on a cross-sectional area of a conductor of a conventional cable. Therefore, the present invention can reduce an outer diameter of an insulated cable by 30% or more and the weight by 40% or more in comparison with the conventional cable, and thus provides the insulated cable with lightweight and flexibility.10-01-2009

Patent applications by Do-Hyun Park, Gyeonggi-Do KR

Do-Hyun Park, Seoul KR

Patent application numberDescriptionPublished
20120303132STENT FOR BILE DUCT - The present invention relates to a stent which is inserted into a stenosed bile duct to enlarge the bile duct. The stent includes a plurality of hooks which extend outwards from the main body of the stent at a predetermined angle and are spaced apart from each other. Therefore, when the stent is inserted into the bile duct, the hooks that extend outwards from the main body at a predetermined angle are hooked to the inner surface of the bile duct, thus preventing the stent from slipping relative to the bile duct.11-29-2012

Do-Hyun Park, Suwon-Si KR

Patent application numberDescriptionPublished
20090117902Apparatus and method for traffic forwarding in a wireless communication system - An apparatus and method for data transmission in a base station (BS) of a wireless communication system are provided, storing data to be transmitted to a mobile station which performing handover to a target base station; confirming a quantity of stored data; determining whether to transmit the stored data to the target based at least partly on the confirmed quantity of the stored data; transmitting the stored data to the target base station when the base station determines to transmit the stored data to the target base station.05-07-2009

Do-Hyun Ryu, Gumi KR

Patent application numberDescriptionPublished
20100300354LIQUID CRYSTAL DISPENSING SYSTEM AND METHOD OF DISPENSING LIQUID CRYSTAL MATERIAL USING SAME - A liquid crystal dispensing system includes a container to contain liquid crystal to be dispensed, a discharge pump to receive the liquid crystal from the container and to discharge the liquid crystal, a nozzle to dispense the liquid crystal discharged from the discharge pump onto a substrate, and a control unit to control a dispensing amount of liquid crystal discharged from the discharge pump and to compensate the dispensing amount when the dispensing amount of liquid crystal exceeds a limitation value.12-02-2010

Patent applications by Do-Hyun Ryu, Gumi KR