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Chang Hoon Lee

Chang Hoon Lee, Changwon-Si KR

Patent application numberDescriptionPublished
20090293223VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME - A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.12-03-2009

Chang Hoon Lee US

Patent application numberDescriptionPublished
20090109520ELECTROPHORETIC DISPLAY DEVICE AND METHOD FOR FABRICATING THE SAME - Disclosed is an electrophoretic display (EPD) device capable of delaying or preventing a sealant from leaking down by forming a dam pattern prior to a sealing process using the sealant, and a method for fabricating the same. The EPD device comprises: gate lines and data lines crossing each other to define a pixel region, and formed on a lower substrate; a thin film transistor (TFT) electrically connected to the gate lines and the data lines; a passivation film covering the TFT; a pixel electrode electrically connected to the TFT; a display layer formed on the pixel electrode and the passivation film, and having an electrophoretic substance; a common electrode formed on an entire surface of the display layer; an upper substrate formed on the common electrode; a seal pattern formed on each outer circumferential surface of the lower substrate, the upper substrate, and the display layer; and a dam pattern formed on the lower substrate adjacent to the seal pattern.04-30-2009

Chang Hoon Lee, Seoul KR

Patent application numberDescriptionPublished
20080255238COMPOSITION CONTAINING A THIOUREA DERIVATIVE FOR PREVENTING OR TREATING PRURITIC OR IRRITANT SKIN DISEASES - Disclosed herein is a composition for preventing or treating pruritic or irritant skin diseases which comprises, as a vanilloid receptor antagonist, a thiourea derivative, a pharmaceutically acceptable salt thereof, a hydrate thereof or a solvate thereof, together with a pharmaceutically acceptable carrier.10-16-2008
20100178873MOBILE TERMINAL AND CONTROLLING METHOD THEREOF - A mobile terminal and controlling method may be provided by which a specific one of various external devices neighboring a mobile terminal may be easily searched and may be connected to the mobile terminal by short-range communication.07-15-2010

Patent applications by Chang Hoon Lee, Seoul KR

Chang Hoon Lee, Changwon City KR

Patent application numberDescriptionPublished
20090172913DUST SEPARATION APPARATUS OF VACCUM CLEANER - A distribution unit for a dust separating apparatus of a vacuum cleaner is provided. The distribution unit distributes air and dust to the dust separation unit includes a body having an inlet for introducing the air and dust to the body, a plurality of branch passages for distributing the air introduced into the body to the dust separation unit, and a main passage for connecting the inlet with the branch passages, and wherein a passage cross-sectional area of the main passage at the branch passage is greater than a passage cross-sectional area of the inlet.07-09-2009
20090293224VACUUM CLEANER AND DUST SEPARATING APPARATUS THEREOF - A dust separating apparatus for a vacuum cleaner is provided. The dust separating apparatus includes a cyclone configured to provide a plurality of cyclone airflows therein and a dust container provided separate from the cyclone. The cyclone includes a first air inlet configured to receive an airflow containing dust and a dust outlet configured to discharge dust separated by the plurality of cyclone airflows. The dust outlet is located in a central portion of the cyclone. The dust container is removably placeable into communication with the dust outlet to collect dust separated in the cyclone. A vacuum cleaner including the dust separating apparatus is also provided.12-03-2009
20100263161VACUUM CLEANER - A dust separating device for a vacuum cleaner is provided. The dust separating device includes a dust separating unit including a first main body movably connected to a second main body. The second main body includes a plurality of sub bodies coupled together. A vacuum cleaner is also provided. The vacuum cleaner includes a main vacuum cleaner body and a dust separating device including a dust separating unit and a filter unit. The dust separating device is detachably mounted to the main body and includes a plurality of main bodies.10-21-2010

Chang-Hoon Lee, Jung-Ri KR

Patent application numberDescriptionPublished
20090190083PLANE SWITCHING MODE LIQUID CRYSTAL DISPLAY DEVICE HAVING IMPROVED CONTRAST RATIO - An in-plane mode liquid crystal display device (LCD) is provided that is capable of improving a contrast ratio by blocking a light leakage region formed by a column spacer. The LCD includes gate and data lines that are formed on a substrate and cross each other to define pixels. A switching device, parallel first and second electrodes that generate a horizontal electric field, and a column spacer are disposed at each pixel. The column spacers are disposed between opposing substrates and are aligned with black matrix or the data lines such that the columns formed by the column spacers overlap with bent portions of the data lines.07-30-2009

Chang-Hoon Lee, Cheonan-Si KR

Patent application numberDescriptionPublished
20090068819Tape structures, and methods and apparatuses for separating a wafer using the same - Example embodiments provide tape structures including a base layer, a neutralizing layer and an adhesive layer. The base layer may support an object. The neutralizing layer may be arranged on the base layer. The neutralizing layer may be grounded to neutralize charges between the base layer and the object. The adhesive layer may be arranged on the neutralizing layer. The object may be attached to the adhesive layer. Example embodiments also provide methods of manufacturing the tape structures, methods of separating a wafer, and apparatuses for separating a wafer.03-12-2009

Patent applications by Chang-Hoon Lee, Cheonan-Si KR

Chang-Hoon Lee, Kyungsan KR

Patent application numberDescriptionPublished
20080295923Carbon Steel Sheet Superior in Formability and Manufacturing Method Thereof - A carbon steel sheet having high formability due to a microscopic and uniform carbide distribution and having a good characteristic of final heat treatment, and a manufacturing method thereof. The carbon steel sheet having excellent formability, includes, in wt %, C at 0.2-0.5%, Mn at 0.1-1.2%, Si at less than or equal to 0.4%, Cr at less than or equal to 0.5%, Al at 0.01-0.1%, S at less than or equal to 0.012%, Ti at less than or equal to 0.5×48/14×[N]% when the condition of B(atomic %)/N(atomic %)>1 is satisfied or by 0.5×48/14×[N]% to 0.03% when the condition of B and N is not satisfied, B at 0.0005-0.0080%, N at less than or equal to 0.006%, Fe, and extra inevitable elements; an average size of carbide is less than or equal to 1 μm; and an average grain size of ferrite is less than or equal to 5 μm.12-04-2008

Chang-Hoon Lee, Anyang-Si KR

Patent application numberDescriptionPublished
20080278133IRREGULAR VOLTAGE DETECTION AND CUTOFF CIRCUIT USING BANDGAP REFERENCE VOLTAGE GENERATION CIRCUIT - An irregular voltage detection and cutoff circuit using a bandgap reference voltage generation circuit includes the bandgap reference voltage generation circuit, which generates a bandgap reference voltage from the power-supply voltage, a reference voltage generator, which generates a first reference voltage and a second reference voltage in the same voltage level as the bandgap reference voltage from the power-supply voltage, a voltage detector, which generates a detection voltage from the power-supply voltage, and a comparator, which generates a switching control signal that cuts off the power-supply voltage by comparing the first and second reference voltages with the detection voltage.11-13-2008

Chang-Hoon Lee, Pohang-Shi, Kyungsangbuk-Do KR

Patent application numberDescriptionPublished
20110259483Fine Spheroidized Steel Sheet with Excellent Heat Treatment Characteristic and Method for Manufacturing the Same - A method for manufacturing a fine spheroidized steel sheet having an excellent heat treatment characteristic, the method including: i) manufacturing a high carbon slab that is formed of 0.3 to 1.0 wt % C, 0.1 to 1.2 wt % Mn, 0 to 0.4 wt % Si, 0.01 to 0.1 wt % Al, 0 to 0.01 wt % S, and balance Fe and an inevitably added impurity as residuals; ii) reheating the slab to a temperature of Ar3 transformation point or more; iii) roughing rolling the slab, and manufacturing a thin plate by performing finish rolling in an austenite region; iv) cooling the thin plate at a cooling speed of 50 to 300° C./sec; v) finishing the cooling of the thin plate at a temperature region of 400 to 650° C. and maintaining the temperature; vi) winding the thin plate at a temperature region of 450 to 700° C.; vii) performing cold rolling at a reduction ratio of 30% or more; and viii) spheroidizing annealing the cold rolled thin plate.10-27-2011

Chang-Hoon Lee, Busan-Shi KR

Patent application numberDescriptionPublished
20120073548Fuel Tank Valve Structure Controlling Emission Gas in Hybrid Vehicle - A fuel tank valve structure controlling emission gas in a hybrid vehicle may include a housing having one side connected with a fuel tank and the other side connected to a canister, a check valve mounted to the housing and opening or closing a first fluid passage connected between the canister and the fuel tank, a solenoid valve apparatus selectively connected with the check valve to open or close the first fluid passage to adjust an internal pressure of the fuel tank, a fuel limit vent valve apparatus mounted to the housing and selectively fluid-connecting to a space formed between the check valve and the fuel limit vent valve apparatus in the housing, and a relief valve mounted to the housing and selectively fluid-connecting the fuel tank with the canister through a second fluid passage.03-29-2012

Chang-Hoon Lee, Yongin-City KR

Patent application numberDescriptionPublished
20090251431Organic light emitting display device - An organic light emitting display device (OLED display) having a first display panel and a second display panel arranged on the same surface thereof. The OLED display includes first and second display panels arranged on a same surface, a touch screen panel arranged integrally on the first and second display panels, a touch screen panel controller adapted to drive the touch screen panel and a display controller adapted to control the first and second display panels, the display controller being further adapted to separate information displayed on the display panels into an image signal and a data signal corresponding to the image signal, the display controller being further adapted to supply the separated image signal and data signal to the first and second display panels, respectively.10-08-2009
20100201694ELECTRONIC IMAGE DEVICE AND DRIVING METHOD THEREOF - An electronic image device and driving method thereof allows a user to control a 3D image and eliminates a process for dividing an input image that is 3D image data into a left-eye image and a right-eye image. 3D image data signals may be generated directly from a 3D image signal or from a time divided 2D image signal.08-12-2010

Chang-Hoon Lee, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100108971Methods of Forming Integrated Circuit Devices Having Vertical Semiconductor Interconnects and Diodes Therein and Devices Formed Thereby - Methods of forming integrated circuit devices include forming an etch stop layer on a surface of a semiconductor substrate and forming a first interlayer insulating layer on the etch stop layer. The first interlayer insulating layer is patterned to define an opening therein that exposes a first portion of the etch stop layer. This first portion of the etch stop layer is then removed to thereby expose an underlying portion of the surface of the semiconductor substrate. This removal of the etch stop layer may be performed by wet etching the first portion of the etch stop layer using a phosphoric acid solution. A semiconductor region is then selectively grown into the opening, using the exposed portion of the surface of the semiconductor substrate as an epitaxial seed layer.05-06-2010
20110288176ETHACRYNIC ACID-CONTAINING COMPOSITION FOR PREVENTION OR TREATMENT OF TRANSGLUTAMINASE-RELATED DISEASES AND METHOD FOR PREVENTION OR TREATMENT OF TRANSGLUTAMINASE-RELATED DISEASES USING THE SAME - The present invention relates to ethacrynic acid and a transglutaminase inhibitor comprising a pharmaceutically acceptable salt of ethacrynic acid; more particularly, to ethacrynic acid for inhibiting the activity of transglutaminase involved in the pathogenesis of diseases in cases of altered expression, a transglutaminase inhibitor comprising a pharmaceutically acceptable salt of ethacrynic acid, and to a novel use of thereof. According to the present invention, there are provided ethacrynic acid, a transglutaminase inhibitor comprising active components of a pharmaceutically acceptable salt of ethacrynic acid and a transglutaminase inhibition method. The present ethacrynic acid, transglutaminase inhibitor comprising a pharmaceutically acceptable salt of ethacrynic acid or ethacrynic acid itself, and transglutaminase inhibition method provide a safer application without side effects to a patient having a disease where altered expression of transglutaminase is observed, thereby providing the inhibitory effect on transglutaminase.11-24-2011

Chang-Hoon Lee, Suwon-Si KR

Patent application numberDescriptionPublished
20080204384Organic electroluminescence display (OELD) and driving methods thereof - An OELD, including a pixel unit having a plurality of pixels to emit light, a photosensor configured to generate a control signal corresponding to an amount of ambient light, a control unit having a gamma control unit, a color coordinate control unit and a light emission control unit, the gamma control unit may be configured to set a gamma correction signal corresponding to the control signal, and the color coordinate control unit may be configured to correct a color coordinate of data signals corresponding to the control signal, a scan driver configured to generate scan signals to scan lines, a data driver configured to correct a gamma value of the data signals according to the data signals corrected in the color coordinate control unit and the gamma correction signal output from the gamma control unit, the data driver may be configured to supply the corrected gamma value to the data lines, and a power supply unit configured to supply power to the pixel unit.08-28-2008
20080218457ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light emitting diode display device is disclosed. The device includes a brightness controller configured to selectively control a brightness controlling range based at least in part on the magnitude of the video data input in one frame, and a gamma correcting unit configured to control the portion of maximum luminance corresponding to full scale data based on one of first gamma correcting values and second gamma correcting values.09-11-2008
20090244387Display device and driving method thereof with improved luminance - A display device and a driving method thereof in which if an input 2D/3D video signal is a 2D video signal, an image data signal is generated by applying a first gamma correction curved line. If the input 2D/3D video signal is a 3D video signal, an image data signal is generated by applying the second gamma correction curved line. Luminance of a maximum grayscale of the first gamma correction curved line is set to be lower than luminance of a maximum grayscale of the second gamma correction curved line. Therefore, it is possible to prevent luminance of the display device from deteriorating by a barrier in a 3D driving mode.10-01-2009
20090251426Organic light emitting display device composed of multiple display panels - An organic light emitting display device that is used as a flat panel display and usable in a portable terminal that employs two separate display-panels. The organic light emitting display device has a first display panel and a second display panel provided on the same surface thereof; a touch screen panel (TSP) formed integrally on the first and second display panels; and one controller controlling the first and second display panels.10-08-2009

Patent applications by Chang-Hoon Lee, Suwon-Si KR