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Jung Min Lee

Jung Min Lee, Suwon-Si KR

Patent application numberDescriptionPublished
20090233513FRIT SEALING SYSTEM - A frit sealing system for combining a first substrate and a second substrate using frit comprises a laser generating a laser beam, and a homogenizer normalizing the intensity of the laser beam within a cross section of the laser beam in the transverse direction. The frit sealing system further comprises a support apparatus configured to hold a first and a second substrate with frit interposed between them, wherein the frit is configured to be cured by heat generated from the laser beam and thereby solidifying and binding the first and the second substrates.09-17-2009
20090233514Frit sealing system and method of manufacturing organic light emitting display device - A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit. The frit sealing system, adhering the first substrate and the second substrate by using the frit, includes: a bed member on which the first substrate is placed; a laser irradiation member irradiating a laser to the frit between the first substrate and the second substrate; and a pressure member disposed on an upper part of the first substrate and the second substrate irradiated with the laser and adhered, thereby pressurizing the first substrate and the second substrate irradiated with the laser and adhered.09-17-2009
20100172172SEMICONDUCTOR DEVICE, SEMICONDUCTOR SYSTEM INCLUDING THE SAME, AND VOLTAGE SUPPLY METHOD OF SEMICONDUCTOR DEVICE - A semiconductor device, a semiconductor system including the same, and a voltage supply method of the semiconductor device are provided. The semiconductor device includes at least two semiconductor memory devices and a voltage supply controller configured to selectively supply a voltage to each of the at least two semiconductor memory devices.07-08-2010
20100172174SEMICONDUCTOR DEVICE HAVING ARCHITECTURE FOR REDUCING AREA AND SEMICONDUCTOR SYSTEM INCLUDING THE SAME - A semiconductor device having an architecture for reducing an area is provided. The semiconductor device includes a memory cell array including a plurality of non-volatile memory cells, a plurality of registers each configured to store pre-fetch unit data, and a write driver circuit configured to write pre-fetch unit data sequentially output from the plurality of registers to the memory cell array during a write operation. The semiconductor device also includes a sense amplifier circuit configured to sense and amplify pre-fetch unit data sequentially output from the memory cell array and to sequentially store the amplified pre-fetch unit data in the plurality of registers, respectively, during a read operation.07-08-2010
20100202182MEMORY DEVICES, SYSTEMS AND METHODS USING MULTIPLE 1/N PAGE ARRAYS AND MULTIPLE WRITE/READ CIRCUITS - A memory device architecture includes N arrays respectively for storing a 1/N of a page and N write/read circuits, where N is a natural number, respectively for writing or reading a 1/N of the page to/from each of the N arrays.08-12-2010
20100214862Semiconductor Devices and Methods for Changing Operating Characteristics and Semiconductor Systems Including the Same - A method of changing a parameter in a semiconductor device is provided. The method includes receiving and storing data in a storage region; and changing at least one between a DC characteristic and an AC timing characteristic of a parameter, used to access a non-volatile memory cell included in a memory core of the semiconductor device, according to the data stored in the storage.08-26-2010

Jung Min Lee, Gumi-City KR

Patent application numberDescriptionPublished
20100036071Method of polymerizing cyclic olefins and vinyl olefins, copolymer produced by the method and political anisotropic film comprising the same - A method of copolymerizing cyclic olefins and polar vinyl olefins, a copolymer produced by the method, and an optical anisotropic film including the copolymer are provided. According to the copolymerization method, a cyclic olefin and a polar vinyl olefin can be effectively copolymerized using a catalyst system composed of a compound containing a group 13 element and a radical initiator. The resulting copolymer is transparent, and has high adhesion, thermal stability, optical anisotropy and strength, and a low dielectric constant. The optical film including the copolymer can be used as a plastic lens, a polarizer protective film, an adhesive film, and a compensation film, and in a LCD display.02-11-2010

Jung Min Lee, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100028463EXTRACT OF STEWARTIA KOREANA AND USE THEREOF - The present invention relates to an extract of 02-04-2010

Jung Min Lee, Dobong-Gu KR

Patent application numberDescriptionPublished
20100030007METHOD FOR THE REMOVAL OF ACETYLENES FROM OLEFINS USING IONIC LIQUID-BASED SOLUTION - The present invention relates to a process for removing acetylenes from olefins by using an ionic liquid-based solution, and particularly to a process for removing a small amount of acetylenes contained in olefins by using an ionic liquid-based solution where copper halide (CuX, X=halogen atom) is dissolved. In an ionic liquid-based solution used in the present invention, copper halide (CuX) is stabilized by ionic liquid, thus preventing monovalent copper ion (Cu02-04-2010

Jung Min Lee, Kyung-Ki Do KR

Patent application numberDescriptionPublished
20090158291METHOD FOR ASSIGNING RESOURCE OF UNITED SYSTEM - A method of assigning a resource of a united system in which a plurality of single systems are complexly operated includes: determining a multi-user diversity order based on the quantity of users existing within the system; determining a cost function using the determined multi-user diversity order; and assigning a resource based on the determined cost function. Therefore, a state of each system and user requirements can be fully reflected and a resource can be efficiently managed within a united system in which several systems are complexly operated.06-18-2009
20100023622METHOD FOR ASSIGNING RESOURCE OF UNITED SYSTEM - A method of assigning a resource of a united system in which a plurality of single systems are complexly operated includes: determining a cost function using standard network state information commonly used within the united system; and assigning a resource based on the cost function. Therefore, a state of each system and user requirements can be fully reflected and a resource can be efficiently managed within a united system in which several systems are complexly operated.01-28-2010

Jung Min Lee, Daejeon KR

Patent application numberDescriptionPublished
20090186225Flaky Alpha-Alumina Crystal and a Method of Its Preparation - The present invention relates to a flaky α-alumina crystal and a preparation method thereof. More particularly, the present invention relates to a flaky α-alumina crystal comprising aluminum oxide and zinc oxide, which is prepared by hydrolyzing an aluminum precursor solution containing a water-soluble flux and a zinc precursor solution to obtain a gel mixture and aging, drying, calcining and crystallizing it under a specific reaction condition, and a preparation method thereof. Since the flaky α-alumina crystal of the present invention has a thickness of less than 0.5 μm, an average particle diameter of at least 15 μm and an aspect ratio of at least 50, it is useful as high-quality pearlescent pigment material and filler for ceramic materials.07-23-2009
20090320719PEARLESCENT PIGMENTS WITH LARGE ASPECT RATIO AND A METHOD OF THEIR PREPARATION - The present invention relates to a pearlescent pigment with large aspect ratio and a method of their preparation, and particularly to pearlescent pigments prepared by coating a metal or metal precursor on the flaky alpha-alumina crystals obtained by using an aluminum precursor aqueous solution and a zinc precursor aqueous solution as main ingredients. The crystals herein has an average particle thickness of 0.5 μm or less, an average particle diameter of 15 μm or higher and a large aspect ratio of 50 or higher, thereby being superior in gloss. The crystals show metal colors and interference colors of silver, gold, red, purple, blue and green.12-31-2009
20100015445FLAKY ALPHA-ALUMINA CRYSTALS WITH LARGE ASPECT RATIO AND A PREPARATION METHOD OF THE SAME - The present invention relates to flaky alpha-alumina crystals with large aspect ratio and its preparation method, and particularly to flaky alpha-alumina crystals comprising aluminum oxide, zinc oxide and tin oxide, which are prepared by obtaining a mixed gel which are prepared by obtaining a mixed gel by means of hydrolysis of an aqueous aluminum precursor solution comprising aqueous flux, aqueous zinc precursor solution and tin precursor aqueous solution, followed by aging, drying and crystallization processes. The crystals herein have an average particle thickness of 0.5 um or less, an average particle diameter of 30 μm or higher and an aspect ratio of 100 or higher, thus being useful as a substrate of high quality pearlescent pigments, an abrasive, ceramic material and a filling material.01-21-2010

Patent applications by Jung Min Lee, Daejeon KR

Jung Min Lee, Kyungsangbuk-Do KR

Patent application numberDescriptionPublished
20090192277Method of producing cyclic olefin polymers having polar functional groups, olefin polymer produced using the method and optical anisotropic film comprising the same - A method of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups, moisture and oxygen is provided. According to the olefin polymerization method, deactivation of a catalyst due to polar functional groups of monomers can be prevented, and thus a polyolefin having a high molecular weight can be prepared with a high yield, and the ratio of catalyst to monomer can be less than 1/5000 due to good activity of the catalyst, and thus removal of catalyst residues is not required.07-30-2009