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Chang Hee
Chang Hee Cho, Kyunggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20080259029 | Input Device Having the Function of Recognizing Hybrid Coordinates and Operating Method of the Same - The present invention relates a coordinate input device to input a variety of job commands, diagrams or characters, and to store or output the input data. More particularly, the present invention provides an input device for recognizing hybrid coordinates and a method of operating the device. The input device uses an absolute coordinate recognition method and a relative coordinate recognition method in a combined fashion as a coordinate recognition method for inputting the track of the characters or diagrams. By doing so, input coordinates are converted into absolute coordinates, and the tracks of handwritten characters and diagrams are stored as the converted absolute coordinates such that the tracks are displayed on a display of the input device or on a monitor of an information terminal connected to the input device. Accordingly, problems of respective conventional input devices for recognizing coordinates can be solved, the structure of hardware can be simplified, and characters or diagrams can be input with accurate recognition of coordinates. | 10-23-2008 |
Chang Hee Choi, Gachang-Myeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110097164 | Cutting Insert - A cutting insert has a top surface and a bottom surface having a parallelogram shape, and four side surfaces connecting the top and bottom surfaces. One or more primary cutting edges are formed at intersections between the top and bottom surfaces and two opposing side surfaces. Secondary cutting edges are formed at intersections between the top and bottom surfaces and two other opposing side surfaces. The primary cutting edge forms a first angle with respect to a median plane parallel to the top and bottom surfaces. The secondary cutting edge forms a second angle with respect to the median plane. The top and bottom surfaces have a mounting surface and a rack surface, wherein the rack surface extends inwardly from the cutting edge toward the median plane. The top and bottom surfaces of the cutting insert have mirror symmetry with respect to the median plane. | 04-28-2011 |
Chang Hee Choi, Dalsung-Gun KR
| Patent application number | Description | Published |
|---|---|---|
| 20110299945 | Cutting Insert Having Non-Symmetrical Back Side Face Portion and Cutting Tool Comprising the Same - A cutting insert has an upper face and a lower face; a front side face portion and a back side face portion, the front and back side face portions connecting the upper face and the lower face; and a through-hole passing through the upper face and the lower face. A cutting edge is formed in the front side face portion, and the back side face portion is provided with a first inclined face and a second inclined face which are inclined forwardly at different angles, respectively, with respect to a plane normal to a rotational axis. The first inclined face is longer than the second inclined face so that the back side face portion has a non-symmetrical convex “V” shape. | 12-08-2011 |
Chang Hee Han, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100294654 | MICRO-METAL-MOLD WITH PATTERNS OF GROOVES, PROTRUSIONS AND THROUGH-OPENINGS, PROCESSES FOR FABRICATING THE MOLD, AND MICRO-METAL-SHEET PRODUCT MADE FROM THE MOLD - The present invention relates to a micro metal mold for manufacturing micro metal sheet products provided with a fine or micro opening(s) or an aperture(s) together with or independently of a groove(s) and/or a protrusion(s), a method for making the mold by the electroforming or electroplating method, a method for making the mold and micro metal sheet products manufactured by using the micro metal mold. According to the invention, it is possible to manufacture micro metal sheet products, provided with fine and precise dimensions of an opening(s) as well as a groove(s) and/or a protrusion(s), under a mass production. | 11-25-2010 |
Chang Hee Hong, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100163906 | Light Emitting Device with Air Bars and Method of Manufacturing the Same - Disclosed are a light emitting device having at least one air bar capable of improving light extracting efficiency and a method of manufacturing the same. With the present invention, there is provided a method of manufacturing a light emitting device including a semiconductor layer(s) having an air-bar layer(s) with a plurality of air bars. The method includes at least one process cycle for forming the semiconductor layer(s). The process cycle includes: forming a patterning thin-film layer on a substrate or a thin-film layer; forming on the patterning thin-film layer an etching guide pattern and an air-bar pattern connected to the etching guide pattern; forming a semiconductor layer(s) on the patterns and exposing the etching guide pattern; wet-etch the exposed etching guide pattern by using a wet-etching solution; and etch the air-bar pattern connected to the etching guide pattern. | 07-01-2010 |
| 20100230685 | LIGHT EMITTING DEVICE, LIGHT EMITTING DEVICE PACKAGE AND LIGHTING SYSTEM INCLUDING THE SAME - Provided are a light emitting device, a light emitting device package and a lighting system including the same. The light emitting device (LED) comprises a light emitting structure comprising a second conductive type semiconductor layer, an active layer, and a first conductive type semiconductor layer and a first electrode over the light emitting structure. A portion of the light emitting structure is sloped at a predetermined angle. | 09-16-2010 |
| 20100276726 | LIGHT EMITTING DEVICE, PACKAGE, AND SYSTEM - A light emitting device includes a first semiconductor layer of a first conductivity type, an active layer adjacent to the first semiconductor layer, a second semiconductor layer of a second conductivity type and provided adjacent to the active layer, and a passivation layer provided on a side surface of the active layer. The passivation layer may be a semiconductor layer of one of the first conductivity type, the second conductivity type or a first undoped semiconductor layer. A first electrode may be coupled to the first semiconductor layer and a second electrode may be coupled to the second semiconductor layer. | 11-04-2010 |
Chang Hee Kim, Busan KR
| Patent application number | Description | Published |
|---|---|---|
| 20110008247 | METHOD FOR SELECTIVELY STORING GAS BY CONTROLLING GAS STORAGE SPACE OF GAS STORAGE MEDIUM - Provided is a gas storage method of a gas storage medium having a multilayer structure in which crystalline structures are stacked to be spaced from each other, including selectively storing gas by relatively controlling a space between the crystalline structures or a lattice distance between crystals of each crystalline structure with respect to the van der Waals diameter of gas which is to be stored. According to the gas storage method, it is possible to selectively store gas. | 01-13-2011 |
Chang Hee Lee, Yeongdo-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20090243856 | SYSTEM FOR MANAGING CHEMICALS USING RFID - Disclosed herein is a system for managing chemicals using Radio-Frequency Identification (RFID). A storage facility identification tag, attached to a chemical storage facility in a laboratory, stores the unique identification code of the chemical storage facility and a list of chemicals. A chemical identification tag, attached to the cover of a chemical container, stores the unique identification code of the chemical storage facility and chemical-related information. A mobile terminal, provided with an RFID reader, receives and outputs the unique identification code of the chemical storage facility, the list of the chemicals, and the chemical-related information. A chemical management server receives information, stores the chemical-related information, manages the use details and inventory quantity of the chemical, checks the storage location of the chemical container and provides warning when the storage location of the chemical container is wrong, and provides warning and information about countermeasures when a danger situation occurs. | 10-01-2009 |
Chang Hee Lee, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100291296 | THIN FILM PATTERNING APPARATUS AND METHOD OF FABRICATING COLOR FILTER ARRAY SUBSTRATE USING THE SAME - A fabricating method of a color filter array substrate includes the steps of forming a black matrix on a substrate, forming red, green, blue color filters on the substrate on which the black matrix is formed, forming an overcoat layer including a white color filter on the substrate on which the red, green, and blue color filters are formed, aligning a flat panel soft mold to the overcoat layer; and smoothing the overcoat layer using the flat panel soft mold. | 11-18-2010 |
| 20110024949 | APPARATUS FOR FABRICATING FLAT PANEL DISPLAY DEVICE METHOD OF FABRICATING THE SAME AND METHOD OF FABRICATING FLAT PANEL DISPLAY DEVICE USING THE SAME - An apparatus for fabricating a flat panel display device includes a device that applies a flowable material on a substrate; a soft mold having a base surface, a groove part recessed in relation to the base surface, and a protruding part protruding from the base surface, the soft mold applying a pressure on the flowable material for forming a multi-stepped profile pattern in the flowable material. | 02-03-2011 |
Chang Hee Lee, Taejon City KR
| Patent application number | Description | Published |
|---|---|---|
| 20110211838 | LOW-COST WDM SOURCE WITH AN INCOHERENT LIGHT INJECTED FABRY-PEROT LASER DIODE - The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. | 09-01-2011 |
| 20110211839 | LOW-COST WDM SOURCE WITH AN INCOHERENT LIGHT INJECTED FABRY-PEROT LASER DIODE - The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. | 09-01-2011 |
Chang Hee Park, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090258908 | Crystalline S-Omeprazole Strontium Hydrate, Method For Preparing Same, And Pharmaceutical Composition Containing Same - This invention provides a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same. | 10-15-2009 |
| 20100137367 | NOVEL CRYSTALLINE BEPOTASTINE METAL SALT HYDRATE, METHOD FOR PREPARING SAME, AND PHARMACEUTICAL COMPOSITION COMPRISING SAME - The present invention discloses a non-hygroscopic crystalline bepotastine metal salt hydrate, a method for preparing same, and a pharmaceutical composition comprising same for treating or preventing a histamine-mediated disease or an allergic disease. | 06-03-2010 |
| 20100168433 | PROCESS FOR PREPARING BEPOTASTINE AND INTERMEDIATES USED THEREIN - A process for stereospecific preparation of bepotastine of formula (I) and novel intermediates used therein having formulae (II) to (IV) are provided. The inventive process comprises subjecting (RS)-4-[(4-chlorophenyl)(2-pyridyl)methoxy]piperidine to a reaction with a 4-halobutanoic acid l-menthyl ester, halo being chloro, bromo or iodo, in an organic solvent in the presence of a base to produce (RS)-bepotastine l-menthyl ester of formula (II), conducting a reaction of the compound of formula (II) with N-benzyloxycarbonyl L-aspartic acid in an organic solvent to induce selective precipitation of bepotastine l-menthyl ester.N-benzyloxycarbonyl L-aspartate of formula (III), filtering the precipitates formed in step 2) to isolate the compound of formula (III), treating the compound of formula (III) with a base to liberate bepotastine l-menthyl ester of formula (IV), and hydrolyzing the compound of formula (IV) in the presence of a base. The inventive process can provide bepotastine having a high optical purity of not less than 99.5% in a high yield, and thus, is useful in the development of anti-histamines and anti-allergic agents. | 07-01-2010 |
| 20110046383 | CRYSTALLINE S-OMEPRAZOLE STRONTIUM HYDRATE, METHOD FOR PREPARING SAME, AND PHARMACEUTICAL COMPOSITION CONTAINING SAME - Disclosed are a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same. | 02-24-2011 |
Chang-Hee Han, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080312515 | System and method for providing cardiovascular disorder diagnosis services - System and method provide an on-line high-performance diagnosis service for cardiovascular disorders. A client requests a high-performance diagnosis by transmitting real electrocardiographic treatment data and magnetocardiographic treatment data of a human body being a treatment object and virtual heart simulation parameters to a medical service server. The medical service server, in response to the diagnosis request, analyzes the real electrocardiographic treatment data to generate an electrocardiographic analysis result, and performs a virtual heart simulation using the simulation parameters to generate a pseudo electrocardiogram and magnetocardiogram. Further, the medical service server determines a disease state of the human body on the basis of the electrocardiographic analysis result, the magnetocardiographic treatment data and the pseudo electrocardiogram and magnetocardiogram, and generates definitive diagnosis data through comparison among the real magnetocardiographic treatment data, the electrocardiographic analysis result, the disease state, and a diagnosis criteria. The definitive diagnosis data is provided to the client. | 12-18-2008 |
| 20100108207 | MANUFACTURING METHOD OF HIGH STRENGTH FERRITIC/MARTENSITIC STEELS - Provided is a method of manufacturing a high strength ferritic/martensitic steel. The method includes melting a ferritic/martensitic steel, hot-working the melted ferritic/martensitic steel, normalizing the hot-worked ferritic/martensitic steel at a temperature of about 1050° C. to about 1200° C., tempering the ferritic/martensitic steel at a temperature of about 600° C. or less, and leaving MX precipitates while preventing a M | 05-06-2010 |
| 20110162764 | HIGH-CR FERRITIC/MARTENSITIC STEEL HAVING IMPROVED CREEP RESISTANCE AND PREPARATION METHOD THEREOF - High-Cr ferritic/martensitic steels having an improved tensile strength and creep resistance are provided, which includes 0.04˜0.13 weight % of carbon, 0.03˜0.07 weight % of silicon, 0.40˜0.50 weight % of manganese, 0.40˜0.50 weight % of nickel, 8.5˜9.5 weight % of chromium, 0.45˜0.55 weight % of molybdenum, 0.10˜0.25 weight % of vanadium, 0.02˜0.10 weight % of tantalum, 0.15˜0.25 weight % of niobium, 1.5˜3.0 weight % of tungsten, 0.05˜0.12 weight % of nitrogen, 0.004˜0.008 weight % of boron, and optionally, 0.002˜0.010 weight % of phosphorus or 0.01˜0.08 weight % of zirconium, and iron balance. By regulating the contents of alloying elements such as niobium, tantalum, tungsten, nitrogen, boron, zirconium, carbon, the high-Cr ferritic/martensitic steels with superior tensile strength and creep resistance are provided, and can be effectively used as an in-core structural material for Generation IV sodium-cooled fast reactor (SFR) which is used under high temperature and high irradiation conditions. | 07-07-2011 |
Chang-Hee Han, Chungbuk KR
| Patent application number | Description | Published |
|---|---|---|
| 20100190341 | APPARATUS, METHOD FOR DEPOSITING THIN FILM ON WAFER AND METHOD FOR GAP-FILLING TRENCH USING THE SAME - Provided are an apparatus and method for depositing a thin film, and a method for gap-filling a trench in a semiconductor device. The thin film depositing apparatus includes a plurality of substrates provided on the same space inside a reactor, wherein deposition of the thin film and partial etching of the deposited thin film are repeated to form the thin film on the plurality of substrates by exposing the substrates to two or more source gases and an etching gas supplied together at predetermined time intervals while rotating the substrates. According to exemplary embodiments, it is possible to concurrently or alternatively perform deposition and etching of a thin film, so that a thin film with good gap-fill capability can be deposited. | 07-29-2010 |
Chang-Hee Kang, Gyeongsan-Si Gyeongsangbuk-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100218923 | COOLING / HEATING PANEL - A cooling/heating panel, which is capable of uniformly radiating heat, to achieve an enhancement in a cooling or heating efficiency, is disclosed. The disclosed cooling/heating panel includes a radiator including a plurality of corrugated plates stacked such that the adjacent corrugated plates extend orthogonally to each other. Each corrugated plate has a closed periphery. A corrugated diffusion passage is defined between the adjacent corrugated plates. The cooling/heating panel also includes a fluid supply/discharge unit for supplying a fluid to the cooling/heating panel such that the supplied fluid flows through each corrugated diffusion passage in a diffused manner, and discharging the fluid from the cooling/heating panel. | 09-02-2010 |
Chang-Hee Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110044890 | Hydrogen Production Method from Water by Thermochemical Cycles Using Germanium Oxide - The present invention relates to a hydrogen production method from water by using germanium oxide, more precisely a hydrogen and oxygen production method from water by thermochemical cycles using germanium oxide. The method of the present invention facilitates the production of hydrogen by multi-step thermochemical cycle using germanium oxide, so that it is characterized by that the thermochemical cycle is low temperature reaction and only water is consumed and other materials are not consumed but circulated. | 02-24-2011 |
Chang-Hee Pyeoun, Chungcheongbuk-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090201402 | IMAGE SENSOR AND DIGITAL GAIN COMPENSATION METHOD THEREOF - The present invention relates to an image sensor and a method for compensating for a digital gain of thereof. The image sensor includes: a variable amplification means for amplifying an inputted analog image signal as a variable first gain value; an analog-to-digital conversion unit for converting the amplified analog image signal into a digital image signal; and a digital gain compensation means for comparing the first gain value with a reference gain value and compensating the digital image signal as a digital second gain value when the first gain value is less than the reference gain value. | 08-13-2009 |