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Choi, Gwangju

Cheol-Hee Choi, Gwangju KR

Patent application numberDescriptionPublished
20110269954NOVEL 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

Cheol-Kyu Choi, Gwangju KR

Patent application numberDescriptionPublished
20090001882White 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

Eun Seok Choi, Gwangju KR

Patent application numberDescriptionPublished
20110135564HIGH-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 Li06-09-2011

Hae Young Choi, Gwangju KR

Patent application numberDescriptionPublished
20090052849OPTICAL 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

Ha-Rim Choi, Gwangju KR

Patent application numberDescriptionPublished
20100299767TREM-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

Hee Jung Choi, Gwangju KR

Patent application numberDescriptionPublished
20100301798METHOD 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

Patent application numberDescriptionPublished
20090206729PHOSPHOR 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(SiO08-20-2009
20100019251Semiconductor 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
20100102345LIGHT 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
20110133240LIGHT 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
20110220952LIGHT 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
20120098018LIGHT 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

Patent applications by Hee Seok Choi, Gwangju KR

Hoo-Kyun Choi, Gwangju KR

Patent application numberDescriptionPublished
20090246266PREPARATION 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
20100285133TRANSDERMAL 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

Jin Sik Choi, Gwangju KR

Patent application numberDescriptionPublished
20080217638Semiconductor 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
20110001164SEMICONDUCTOR 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

Jung-Kap Choi, Gwangju KR

Patent application numberDescriptionPublished
20110053279DETECTION 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

Patent application numberDescriptionPublished
20100135619Optical 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

Kwang Ki Choi, Gwangju KR

Patent application numberDescriptionPublished
20110089436LIGHT 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
20110089451SEMICONDUCTOR 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
20110089452SEMICONDUCTOR 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

Patent application numberDescriptionPublished
20110140143LIGHT 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

Sang Geun Choi, Gwangju KR

Patent application numberDescriptionPublished
20100037631ICE 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

Su Na Choi, Gwangju KR

Patent application numberDescriptionPublished
20090153309SYNCHRONIZATION 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
20090153329METHOD 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 206-18-2009

Tae-Sun Choi, Gwangju KR

Patent application numberDescriptionPublished
200901680543-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

Won Ii Choi, Gwangju KR

Patent application numberDescriptionPublished
20120087859NANOCARRIER 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

Yongdoo Choi, Gwangju KR

Patent application numberDescriptionPublished
20100189657INTRAMOLECULARLY 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 numberDescriptionPublished
20110140143LIGHT 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

Patent application numberDescriptionPublished
20120122350BOARD-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 Sik Choi, Gwangju KR

Patent application numberDescriptionPublished
20090131188APPARATUS 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