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Hahn, KR

Byung-Dong Hahn, Gyeongsangnam-Do KR

Patent application numberDescriptionPublished
20110281127PREPARATION METHOD OF HYDROXYAPATITE COATING LAYER USING AEROSOL DEPOSITION AND HYDROTHERMAL TREATMENT, AND NANOSTRUCTURED HYDROXYAPATITE COATING LAYER PREPARED BY THE METHOD - A method of preparing a nano-structured hydroxyapatite [Ca11-17-2011

Chang Hie Hahn, Gyeongsangnam-Do KR

Patent application numberDescriptionPublished
20080283725Apparatus for Digital Imaging Photodetector Using Gas Electron Multiplier - The present invention provides a digital imaging photodetector with a gas electron multiplier. The digital imaging photodetector comprises a gas electron multiplier detector. The gas electron multiplier detector includes a photoelectric converter for converting incident light into photoelectrons or Compton electrons; a gas electron multiplier (GEM) for receiving the photoelectrons or Compton electrons from the photoelectric converter and multiplying them; and a readout unit for receiving an electrical signal indicating a position where an electron cloud multiplied in the gas electron multiplier arrives on an anode, recognizing coordinates of the electron cloud based on the received signal, and outputting the coordinates of the electron cloud. According to the digital imaging photodetector of the present invention, real-time imaging of image information can be achieved by multiplying photoelectrons or Compton electrons, which are discharged due to a photoelectric effect or a Compton effect induced by visible rays, ultraviolet rays or X-rays, using the gas electron multiplier.11-20-2008
20090261265APPARATUS AND METHOD FOR ARRAY GEM DIGITAL IMAGING RADIATION DETECTOR - An array gas electron multiplier (GEM) digital imaging radiation detector and a control method thereof are disclosed. The array gas electron multiplier (GEM) digital imaging radiation detector includes an array GEM detector. The array GEM detector includes: an ionized electron generation unit for generating ionized electrons in internal filling gas by incident X-rays or gamma rays or by incident charged particles; a gas electron multiplication unit for multiplying the ionized electrons of the ionized electron generation unit in filling gas inside hole of a gas electron multiplier (GEM), through electron avalanche effect, using the GEM, to form electron clouds; a readout for detecting and outputting coordinates of the electron clouds as the readout receives positions through electrical signals, in which the positions of the electron clouds, being multiplied and formed in the gas electron multiplication unit, reach output electrodes. Therefore, the present invention can multiply ionized electrons of internal filling gas as a gas electron multiplier (GEM) generates an electron avalanche effect in the hole thereof, in which the ionized electrons are generated as a photo-electron effect or a Compton effect is induced by high energy incident light, such as X-rays or gamma rays, or which are directly generated by incident charged particles, and can convert image information of the inside or outside of an target object into images of two-dimensions, in real time, such that the detector can be properly used as a security search apparatus in a harbor or an airport, or can be adapted as a core part of industrial nondestructive testing apparatus.10-22-2009

Chang Su Hahn, Chungcheongnam-Do KR

Patent application numberDescriptionPublished
20120020829HEAT-RESISTANT ALUMINUM ALLOY AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a heat-resistant aluminum alloy including aluminum and two types of alloy elements which are combined while forming a homogeneous solid solution reinforcing phase. The disclosed heat-resistant aluminum alloy includes the alloy elements that form a homogeneous solid solution and do not have a solvus line with respect to aluminum as a matrix metal and, therefore, the formed homogeneous solid solution reinforcing phase does not react with aluminum even at a temperature up to 300° C., thus not becoming coarse or undergoing phase decomposition. Consequently, the disclosed aluminum alloy may have remarkably enhanced heat resistance.01-26-2012

Dong Hoon Hahn, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100203934METHOD OF PROVIDING GAME AND SYSTEM THEREOF - A system for providing a game includes: a sponsor-league-providing-server which transmits a sponsor league list to an electronic device according to a sponsor league selection signal received from the electronic device, and transmits advertisement data registered in a particular sponsor league when executing a game corresponding the particular sponsor league selected from the sponsor league list. An electronic device requests a sponsor league list to the sponsor-league-providing-server and receives the sponsor league list in case the sponsor league is selected from a menu list of game mode, and displays a game execution screen including advertisement data at one side when a game corresponding to the particular sponsor league is executed.08-12-2010

Ho Chahn Hahn, Suwon-Si KR

Patent application numberDescriptionPublished
20100247868POLYURETHANE POROUS PRODUCT AND MANUFACTURING METHOD THEREOF AND POLISHING PAD HAVING POLYURETHANE POROUS PRODUCT - The present invention relates to a method for manufacturing a polyurethane porous product, a polyurethane porous product according to the manufacturing method, and a polishing pad having the polyurethane porous product. According to the present invention, it is possible to manufacture a polishing pad that has excellent polishing efficiency and has a minimal difference in the polishing characteristic during a polishing process and improves uniformity in plane of material that will be polished because the polyurethane porous product of the present invention has small density difference, small hardness difference, and the stabilized quality of material.09-30-2010

Hun-Joo Hahn, Seongnam-Si KR

Patent application numberDescriptionPublished
20110001693BACKLIGHT UNIT FOR LIQUID CRYSTAL DISPLAY DEVICE - There is provided a backlight unit for an LCD device. The backlight unit, disposed under a liquid crystal panel and emitting light to a liquid crystal panel, includes a lightguide plate, a light emitting diode (LED) array disposed at an edge of the lightguide plate and including a plurality of LED blocks each including at least one LED emitting white light, and a controller controlling a current signal applied to each of the plurality of LED blocks to regulate the luminance of each LED block. Accordingly, the backlight unit can be provided, which is capable of contributing to manufacturing thinner and larger products and realizing effective local dimming by using an LED disposed at an edge of the lightguide plate.01-06-2011

Jang-Hee Hahn, Gangwon-Do KR

Patent application numberDescriptionPublished
20100286064POLYPEPTIDE INHIBITING TRANSMIGRATION OF LEUKOCYTES OR GROWTH AND/OR METASTASIS OF CANCER CELLS, AND FUSION PROTEIN THEREOF - The present invention provides a polypeptide inhibiting the transmigration of leukocytes or the growth and/or metastasis of cancer cells, or a fusion protein thereof. The present invention also provides a polynucleotide encoding the polypeptide, a vector including the polynucleotide, and a transformant transformed with the vector. The present invention also provides a pharmaceutical composition for the prevention or treatment of inflammatory diseases including the polypeptide or a fusion protein thereof. The present invention also provides a pharmaceutical composition for inhibiting the growth and/or metastasis of cancer cells including the polypeptide or a fusion protein thereof.11-11-2010

Jin Woo Hahn, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20120013429MULTILAYER INDUCTOR AND METHOD OF MANUFACTURING THE SAME - Provided is a multilayer inductor and a method of manufacturing the same. The multilayer inductor includes a plurality of deposited ferrite sheets, a coil part constituted by a plurality of internal electrode patterns and internal electrode vias formed on the plurality of ferrite sheets, non-magnetic vias formed at arbitrary positions of the plurality of ferrite sheets and filled with a non-magnetic material of paste so that a magnetic flux formed around the coil part can be dispersed, and a gap layer formed of a non-magnetic ferrite disposed at a center of the deposited ferrite sheets. Since a non-magnetic via is formed in the multilayer inductor, a magnetic flux propagation path in a coil can be dispersed and blocked to suppress magnetization at a high current and thus improve variation in inductance according to current application.01-19-2012

Joe-Oong Hahn, Suwon-Si KR

Patent application numberDescriptionPublished
20090033224Plasma display panel and method of manufacturing the same - A plasma display panel and a method of manufacturing the plasma display panel are provided. The plasma display panel includes: a plurality of substrates including a first substrate and a second substrate disposed to face the first substrate; a plurality of barrier ribs disposed between the first substrate and the second substrate and defining a plurality of discharge spaces; a plurality of discharge electrodes disposed between the first substrate and the second substrate; phosphor layers formed in the discharge spaces; and an external light shield layer formed inside the substrates.02-05-2009
20090091260Protective layer, method of manufacturing the same, and plasma display panel including the same - A protective layer for a plasma display panel (PDP) includes a single layer having a first magnesium oxide crystal doped with a first impurity and a second magnesium oxide crystal doped with a second impurity.04-09-2009

Jong-Hoon Hahn, Pohang KR

Patent application numberDescriptionPublished
20090117287MODIFICATION METHOD OF MICROCHANNELS OF PDMS MICROCHIP USING SOL-GEL SOLUTION - The present invention provides a method for modification of microchannels of a polydimethylsiloxane (PDMS) microchip, which includes the steps of: a) mixing an alkoxysilane precursor, an alkyl alkoxysilane precursor, and a solvent to prepare a sol-gel solution; b) oxidizing microchannels of the PDMS microchip; and c) coating the oxidized microchannels with the sol-gel solution prepared in step a). The PDMS microchip modified according to the method of the present invention shows higher hydrophilicity than an unmodified PDMS microchip. And, when the modified PDMS channels are filled with an organic solvent, channel swelling can be reduced, and thus various organic solvents can be used for the modified PDMS microchip compared to an unmodified PDMS microchip. Further, it can be widely applied for various fields because absorptivity of non-polar substances can be reduced.05-07-2009
20110177563HIGH THROUGHPUT DEVICE FOR PERFORMING CONTINUOUS-FLOW REACTIONS - A high-throughput device is structured to perform a continuous-flow reaction, e.g., a polymerase chain reaction (PCR) requiring repetitive temperature control in a timely fashion.07-21-2011

Jung Seok Hahn, Yongin-Si KR

Patent application numberDescriptionPublished
20110204350Composition and organic insulating film prepared using the same - Disclosed is a composition, an organic insulating film including the same, an organic thin film transistor including the organic insulating film, an electronic device including the organic thin film transistor and methods of fabricating the same. In the composition, an organic polymer material having a carboxyl group and an organic silane material having an electron-donating group are included to thus realize a structure which may further stabilize an unreacted crosslinking material. Thereby, a hysteresis phenomenon may be decreased and transparency may be increased, thus making it possible to assure stability upon exposure to air. Accordingly, the lifetime of the organic thin film transistor may be lengthened.08-25-2011

Jung Seok Hahn, Seongnam-Si KR

Patent application numberDescriptionPublished
20080197346Nitrogen-containing heteroaromatic ligand-transition metal complexes, buffer layer comprising the complexes and organic thin film transistor comprising the buffer layer - Example embodiments provide a nitrogen-containing heteroaromatic ligand-transition metal complex, a buffer layer including the complex, which may improve the injection and transport of electrical charges, an organic thin film transistor and an electronic device including the buffer layer, in which the injection of electrons or holes and the transport of charges between layers are accelerated, thereby improving the efficiency thereof, and methods of manufacturing the same.08-21-2008
20080299382Functionalized metal nanoparticle, buffer layer including the same and electronic device including the buffer layer - Disclosed herein is a functionalized metal nanoparticle, a buffer layer including the functionalized metal nanoparticle, and an electronic device including the buffer layer. The buffer layer including the functionalized metal nanoparticle according to example embodiments may improve the injection of electrons or holes and the charge mobility between layers in the electronic device, may form ohmic contacts, and may improve the selectivity between electrodes and the buffer layer at the time of forming the buffer layer on the electrodes, thereby improving the efficiency of the electronic device.12-04-2008
20080308793Composition and organic insulator prepared using the same - Disclosed are a composition including a silane-based organic/inorganic hybrid material having a multiple bond and one or more organic metal compounds and/or one or more organic polymers, an organic insulator including the composition, an organic thin film transistor (OTFT) including the organic insulator and an electronic device including the OTFT. The organic insulator including the composition for preparing an organic insulator has increased charge mobility and an increased on/off current ratio, thus exhibiting improved properties, and the organic thin film transistor manifests uniform properties due to the absence of hysteresis.12-18-2008
20090032809Organic thin film transistor and method of manufacturing the same - Disclosed are an organic thin film transistor and a method of manufacturing the same, in which a crystalline organic binder layer is on the surface of an organic insulating layer and source/drain electrodes or on the surface of the source/drain electrodes. The organic thin film transistor may be improved in two-dimensional geometric lattice matching and interface stability at the interface between the organic semiconductor and the insulating layer or at the interface between the organic semiconductor layer and the electrode, thereby improving the electrical properties of the device.02-05-2009
20090045396Composition for forming passivation layer and organic thin film transistor comprising the passivation layer - Disclosed herein is a composition including a perfluoropolyether derivative, a photosensitive polymer or a copolymer thereof, and a photocuring agent, a passivation layer, organic thin film transistor, and electronic device including the same, a method of forming the passivation layer and methods of fabricating the organic thin film transistor and electronic device. The organic thin film transistor may prevent or reduce oxygen and moisture from infiltrating thereinto, and thus may prevent or reduce the degradation of the performance thereof caused by ambient air, prevent or reduce the deterioration thereof, and may more easily be formed into a pattern, thereby exhibiting characteristics suitable for use in electronics.02-19-2009
20090197090Composition, anti-oxide film including the same, electronic component including the anti-oxide film, and methods for forming the anti-oxide film and electronic component - Disclosed herein is a composition, including a fluorine-based polymer or a perfluoropolyether (PFPE) derivative and a PFPE-miscible polymer, an anti-oxide film and electronic component including the same, and methods of forming an anti-oxide film and an electronic component. Use of the composition may achieve formation of an anti-oxide film through a solution process and electronic components using a metal having increased conductivity and decreased production costs.08-06-2009
20120018713Nitrogen-containing heteroaromatic ligand-transition metal complexes, buffer layer comprising the complexes and organic thin film transistor comprising the buffer layer - Example embodiments provide a nitrogen-containing heteroaromatic ligand-transition metal complex, a buffer layer including the complex, which may improve the injection and transport of electrical charges, an organic thin film transistor and an electronic device including the buffer layer, in which the injection of electrons or holes and the transport of charges between layers are accelerated, thereby improving the efficiency thereof, and methods of manufacturing the same.01-26-2012

Patent applications by Jung Seok Hahn, Seongnam-Si KR

Jung Seok Hahn, Seongam-Si KR

Patent application numberDescriptionPublished
20080241549Method for forming UV-patternable conductive polymer film and conductive polymer film formed by the same - Example embodiments provide a method for forming a UV-patternable conductive polymer film. According to the method, vapor-phase polymerization (VPP) may be employed to synthesize a conductive polymer and a UV-curable polymer resin may be used as a binder to form a conductive polymer film. Example embodiments also provide a conductive polymer film formed by the method. The conductive polymer film may be patterned in a relatively simple manner while maintaining increased conductivity, improved transparency and improved flexibility. Therefore, the conductive polymer film may be used as a material for transparent electrodes of a variety of display devices, e.g., LCD and PDP devices, and electronic devices, e.g., ELs and TFTs.10-02-2008

Kyeong Ho Hahn, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20090141253Image Output Device Capable of Enlarged Projection - An image output device includes a housing which is opened at a predetermined portion of a side wall thereof, a Fresnel lens which is installed in the opened portion of the housing, a base which is installed inside the housing to allow an object to be placed thereon, illumination means for illuminating the base, and a convex lens which is located between the base and the Fresnel lens and is installed such that an image of the object placed on the base can be viewed at a position which projects out of the Fresnel lens. The base comprises a driving gear which is rotated by a motor, a driven gear which is rotated by rotation of the driving gear, and a rotation plate which is rotated by rotation of the driven gear.06-04-2009
20090141379MULTIVIEW AND MULTIANGLE IMAGE RECONSTRUCTION DEVICE - An image reconstruction device includes a housing which is opened at an upper end thereof, a support plate which is arranged adjacent to a lower end of the housing, a plurality of partition walls which divide an area on the support plate into parts, rotation plates which are installed on the support plate to allow objects to be placed thereon, illuminators which are mounted to a side wall of the housing, reflection mirrors which are positioned above the illuminators, and a pair of concave mirrors which are arranged in an upper part of the housing. The pair of concave mirrors are provided in each of four directions, and these four pairs of concave mirrors are rotated above the housing by concave mirror rotation means.06-04-2009

Sei Kwang Hahn, Pohang-Si KR

Patent application numberDescriptionPublished
20100249059BONE FILLING COMPLEX AND METHOD FOR FABRICATING THE SAME - Provided is a bone filling complex and a method of preparing the same. The bone filling complex includes a matrix including a hydrogel-type hyaluronic acid derivative; and a bone derivative filling the matrix, and thus adhesion can be prevented and excellent bone generation property can be obtained. For example, the bone filling complex can be used to an injured portion of alveolar bone to derive an regeneration of the alveolar bone.09-30-2010
20100322378X-RAY ABLATION OF HYALURONAN HYDROGELS - Disclosed is a method for ablating hyaluronan-based hydrogels with X-rays, the method comprising the steps of: (a) preparing hyaluronan-based hydrogels; and (b) performing X-ray irradiation to the hyaluronan-based hydrogels to induce a degradation of the hyaluronan-based hydrogels by a gel-to-sol transition during the X-ray irradiation. Disclosed is also a method for fabricating three-dimensional microchannels of hyaluronan hydrogels with a finely tunable X-ray ablation technique.12-23-2010

Sei Kwang Hahn, Gyeongsangbuk-Do KR

Patent application numberDescriptionPublished
20090208726NANOPOROUS MEMBRANE, PROCESS OF FABRICATING THE SAME AND DEVICE FOR CONTROLLED RELEASE OF BIOPHARMACEUTICALS COMPRISING THE SAME - Provided are a nanoporous membrane including a support; a first separation layer with a plurality of first nano-sized pores and a first matrix; and a second separation layer having a plurality of second pores respectively corresponding to the plurality of first pores of the first separation layer and a second matrix, and formed on the first separation layer, wherein a density of the plurality of the first pores and the second pores is equal to or greater than 1008-20-2009
20110237542COMPOSITION FOR PREVENTING ADHESION - The present invention relates to a composition for preventing tissue adhesion which comprising a bio-compatible hyaluronic acid and a polymer compound. More specifically, the invention is a composition containing hyaluronic acid which has not been modified by a chemical crosslinking or other chemical modification a method for preparing the same, and a composition for adhesion prevention with superior efficacy.09-29-2011

Sei-Kwang Hahn, Pohang-City KR

Patent application numberDescriptionPublished
20100144035Delivery system for nucleic acids using cationic polymer conjugates - The present invention relates to a delivery system for nucleic acid using a cationic polymer conjugate, and more specifically relates to a delivery system for nucleic acid comprising a cationic polymer conjugate prepared by conjugating hyaluronic acid or its derivative and polyethyleneimine, and a composition of delivering a nucleic acid into mammalian cell comprising a complex of the nucleic acid and a cationic polymer conjugate with electrostatic binding.06-10-2010
20100210509LONG ACTING HYALURONIC ACID - PEPTIDE CONJUGATE - The invention relates to a novel bioconjugation protocol for peptide suitable for in vivo applications. Bioconjugation of the peptide to HA derivative increases its half life in circulation contributing for a high efficacy. More over, conjugate of HA derivative and peptide which is treated with hyaluronidase shows increased bioactivity. And also, in contrast to PEGylation, HA derivative can be conjugated with many numbers of peptide molecules per single HA derivative chain, which enables multiple action of peptide drugs.08-19-2010

Sei-Kwang Hahn, Kyungsangbukdo KR

Patent application numberDescriptionPublished
20100261245LONG ACTING FORMULATION OF BIOPHARMACEUTICAL - The invention relates to a long-acting formulation of biopharmaceutical, more specifically an aptamer therapeutics. A branched PEGylated aptamer or a hyaluronic acid (HA) derivative of which degradation in vivo is regulated is linked by the bioconjugation with biopharmaceutical to produce the long-action formulation.10-14-2010
20110111477LONG ACTING FORMULATION OF BIOPHARMACEUTICAL - The invention relates to a long-acting formulation of biopharmaceutical, more specifically an aptamer therapeutics. A branched PEGylated aptamer or a hyaluronic acid (HA) derivative of which degradation in vivo is regulated is linked by the bioconjugation with biopharmaceutical to produce the long-action formulation.05-12-2011

Sung Hong Hahn, Ulsan-City KR

Patent application numberDescriptionPublished
20080266641GPS Anti-Dazzling System and Method for Vehicles - Provided is a system for preventing driver's dazzling caused by illumination lights of headlights of other vehicles at night. The system includes: a windshield polarization plate installed on a windshield of a vehicle, and transmitting a light polarized in a direction determined by an electric signal; a polarization information storing unit storing driveway information on a map, and storing polarization information including the polarization direction of the windshield polarization plate that is set in advance to prevent driver's dazzling according to a location of the driveway and a driving direction; a GPS unit sensing a location of the vehicle on the driveway and the driving direction of the vehicle, and acquiring the polarization information from the polarization information storing unit according to the sensed location and the driving direction; and a polarization controller controlling the polarization direction of the windshield polarization plate according to the polarization information transmitted from the GPS unit.10-30-2008

Sun Hwa Hahn, Daejeon-Si KR

Patent application numberDescriptionPublished
20090254527Multi-Entity-Centric Integrated Search System and Method - Disclosed herein is a multi-entity-centric integrated search system and method. The multi-entity-centric integrated search system includes an entity information acquisition server for receiving and analyzing a query term and determining entities and types of entities, and an integrated search result provision server for configuring an integrated search results page using results acquired from unit service calling units, such as an external API calling unit, a search engine calling unit, and an inference engine calling unit, and presenting integrated search results. The present invention is advantageous in that precise search results can be shown more rapidly, satisfaction with search results for a query term in which multiple entities coexist can be improved, the ambiguity of query terms is overcome, and an open platform capable of operating in conjunction with various types of web services is provided.10-08-2009
20090254644System of Managing Connection to Web Services and Method Thereof - The present invention relates to a system and method for managing connection between web services. The system includes an external web service connection setup server for determining an external web service to which connection is to be made, and establishing and verifying connection rules, and an external web service connection management server for conducting tests on connection to the external web service and storing the results of the tests. The system may further include a component for searching a connection target DB in which connection results are stored, and transmitting connection results to a main web service server, a component for removing a hyperlink to a failure page, and a component for sensing a sudden increase in a connection failure ratio. Accordingly, external web services belonging to all fields desired by a network manager can be easily, rapidly and efficiently connected.10-08-2009

Tae Ryoung Hahn, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100287664Genes for enhancing resistance to magnaporthe oryzae and uses thereof - The present invention relates to Pi5-1 and Pi5-2 proteins which enhance resistance to 11-11-2010

Wook-Ghee Hahn, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090257278FLASH MEMORY DEVICE HAVING SHARED ROW DECODER - A flash memory device includes at least two mats and a row decoder shared by the mats. Each mat includes multiple word lines, bit lines, and blocks that share the bit lines. The row decoder includes a block decoder that generates a block selection signal for selecting a block, a block word line boosting circuit that generates a high voltage block word line signal in response to the block selection signal, a word line driver that drives word line drive signals driving the word lines of the selected block using drive voltages according to an operation mode and the word lines of an unselected block using a first bias voltage, and a string selection line driver that drives a string selection signal of the selected block using a drive voltage according to the operation mode and the string selection signal of the unselected block using a second bias voltage.10-15-2009
20100046292Non-volatile memory device and bad block remapping method - A non-volatile memory device and a bad block remapping method use some of main blocks as remapping blocks to replace a bad block in a main cell block and selects remapping blocks using existing block address signals. Thus, separate bussing of remapping block address signals is not needed. The bad block remapping includes comparing an external block address input from an external source to a stored bad block address, generating a bad block flag signal when the external block address is identical to the stored bad block address, generating a remapping block address selecting the remapping blocks in response to a remapping address corresponding to the bad block address, selecting one of the external block address and the remapping block address in response to the bad block flag signal to create a selected address, and outputting a row address signal in accordance with the selected address.02-25-2010

Patent applications by Wook-Ghee Hahn, Hwaseong-Si KR

Woong Hahn, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20120010273Hybrid Hepatocyte Growth Factor Gene Having High Expression Efficiency of Two Heterotypes of Hepatocyte Growth Factor - The present invention relates to a hybrid Hepatocyte Growth Factor (HGF) gene which is prepared by inserting an inherent or foreign intron between exons 4 and 5 in HGF cDNA, which has a base sequence of SEQ ID NO: 2. The gene has high expression efficiency and simultaneously expresses two heterotypes of HGF and dHGF (deleted variant HGF). Further the gene may be used for treating or preventing ischemic or liver diseases.01-12-2012

Woong Hahn, Goyang KR

Patent application numberDescriptionPublished
20100105878Hybrid Hepatocyte Growth Factor Gene Having High Expression Efficiency of Two Heterotypes of Hepatocyte Growth Factor - The present invention relates to a hybrid Hepatocyte Growth Factor (HGF) gene which is prepared by inserting an inherent or foreign intron between exons 4 and 5 in HGF cDNA, which has a base sequence of SEQ ID NO: 2. The gene has high expression efficiency and simultaneously expresses two heterotypes of HGF and dHGF (deleted variant HGF). Further the gene may be used for treating or preventing ischemic or liver diseases.04-29-2010

Woong Hahn, Kyeonggi-Do KR

Patent application numberDescriptionPublished
20090202606Treatment and Prevention of Cardiac Conditions Using Two or More Isoforms of Hepatocyte Growth Factor - The present invention relates to methods for treating or preventing cardiac conditions in a subject comprising administering to the subject two or more isoforms of hepatocyte growth factor (HGF). The present invention further relates to methods for promoting endothelial cell growth in a blood vessel comprising administering to the blood vessel two or more isoforms of hepatocyte growth factor (HGF). In one embodiment the two or more isoforms of HGF are administered as one or more polynucleotides encoding the isoforms.08-13-2009

Woong Hahn, Goyang-Si KR

Patent application numberDescriptionPublished
20090258932Lyophilized DNA Formulations for Enhanced Expression of Plasmid DNA - The present invention provides for a method of treating or preventing ischemic or liver disease in a subject by administering a composition reconstituted from a lyophilized hepatocyte growth factor (HGF) DNA formulation, where the DNA formulation comprises an HGF plasmid DNA, salt and a carbohydrate. The invention further provides for a method of making such a lyophilized DNA formulation that preserves or enhances gene expression both in vitro and in vivo, thus maintaining or stimulating the biological activity of the expressed protein. The invention also provides for the DNA formulation, or the lyophilized DNA formulation according to the methods disclosed.10-15-2009
20110166211LYOPHILIZED DNA FORMULATIONS FOR ENHANCED EXPRESSION OF PLASMID DNA - The present invention provides for a method of treating or preventing ischemic or liver disease in a subject by administering a composition reconstituted from a lyophilized hepatocyte growth factor (HGF) DNA formulation, where the DNA formulation comprises an HGF plasmid DNA, salt and a carbohydrate. The invention further provides for a method of making such a lyophilized DNA formulation that preserves or enhances gene expression both in vitro and in vivo, thus maintaining or stimulating the biological activity of the expressed protein. The invention also provides for the DNA formulation, or the lyophilized DNA formulation according to the methods disclosed.07-07-2011

Woong Hahn, Seongnam-City KR

Patent application numberDescriptionPublished
20090312216Photoresist Stripper Composition for Semiconductor Manufacturing - The present invention relates to a photoresist stripper composition for removing the photoresist in the manufacturing process of the semiconductor device. More particularly, the photoresist stripper composition comprises 3-20 wt % of hydrazine hydrate or amine compound; 20˜40 wt % of polar solvent; 0.01-3 wt % of corrosion inhibitor selected from the group consisting of imidazoline derivative, sulfide derivative, sulfoxide derivative, aromatic compound or aromatic compound with hydroxyl group; 0.01-5 wt % of monoalcohol compound of C2-C10; and 40-70 wt % of deionized water. The photoresist stripper composition for manufacturing the semiconductor can remove the photoresist film thermoset by hard bake, dry etching, ashing or ion implantation and denatured by the metallic by-product etched from the bottom metallic film in said process at low temperature easily and quickly, and minimize the corrosion of the bottom metallic wiring in the removing process of the photoresist.12-17-2009

Yoon-Bong Hahn, Jeonju-Si KR

Patent application numberDescriptionPublished
20090178925Chemical Sensor Based on Zinc Oxide Nanostructures for Detection of Hydrazine - The present invention relates to a chemical sensor for detection of hydrazine. The invention detects hydrazine with a modified electrode using ZnO nanostructures such as nanonails and hexagonal-shaped nanorods by electrochemical analysis. The ZnO nanostructures are grown by simple non-catalytic thermal evaporation process in the presence of oxygen and coated on the surface of electrode. The prepared ZnO nanostructures/electrode is used as electron mediator and enhances the electron transfer between the hydrazine and electrodes and produces a high sensitivity. The most important target of this invention is to present the use of novel, cost effective and easily grown ZnO nanostructures as efficient electron mediators to modify the electrodes and fabricate the chemical sensor for effective detection of hydrazine.07-16-2009