Patent application number | Description | Published |
20100212302 | MONOLITH, CATALYST CONVERTOR FOR PURIFYING EXHAUST GAS USING THE SAME AND METHOD FOR MANUFACTURING THE CATALYST CONVERTOR - Provided is a catalyst converter for purifying exhaust gas and a method for manufacturing the catalyst converter, in which a heater is disposed between inner/outer monoliths, to thereby heighten a heat transfer efficiency and induce a uniform catalytic reaction, and to thereby enhance a processing performance, and minimize an electric power consumption and miniaturize a device. The catalyst converter includes: a heater having a winding portion which is wound so as to have a space therein and a pair of electric power terminals; inner and outer monoliths which are inserted in the inner and outer circumferential portions of the heater winding portion wherein each of the inner and outer monoliths includes a number of hollow cells on the surfaces of which catalysts have been coated and which are formed in the lengthy direction; and a housing in which a support assembly is assembled. | 08-26-2010 |
20100288418 | MAGNETIC SHEET FOR RADIO FREQUENCY IDENTIFICATION ANTENNA, METHOD OF MANUFACTURING THE SAME, AND RADIO FREQUENCY IDENTIFICATION ANTENNA USING THE SAME - Provided are a magnetic sheet for use in a radio frequency identification (RFID) antenna, an RFID antenna including the magnetic sheet, and a method of manufacturing the magnetic sheet, in which the magnetic sheet includes an amorphous alloy selected from the group consisting of Fe—Si—B, Fe—Si—B—Cu—Nb, Fe—Zr—B and Co—Fe—Si—B. The magnetic sheet is made by laminating amorphous alloy ribbons made of an amorphous alloy between magnetic sheet layers formed of alloy powder including at least one amorphous alloy and then compression-molding the amorphous alloy ribbons, to thereby control microcrack of the amorphous alloy ribbons and enhance characteristic of an end-product. The magnetic sheet is also thin, and has an excellent magnetic permeability, and a simple manufacturing process. | 11-18-2010 |
20110068013 | METHOD AND APPARATUS FOR MANUFACTURING METAL NANO-PARTICLES USING ALTERNATING CURRENT ELECTROLYSIS - Disclosed herein are a method and apparatus for preparing metal nanoparticles using alternating current (AC) electrolysis, in which the yield of metal nanoparticles obtained can be greatly improved by maintaining the concentrations of a reducing agent and a dispersing agent at constant levels in proportion to the intensity of an electric current during the production of the metal nanoparticles. The method for preparing metal nanoparticles comprises the steps of: dissolving an electrolyte and a dispersing agent in pure water in a reactor to prepare an electrolytic solution; placing first and second electrodes apart from each other in the electrolytic solution in the reactor, the electrodes being made of the same material as metal nanoparticles to be obtained; applying alternating current at the first and second electrodes to ionize the metal of the first and second electrodes in the electrolytic solution; and introducing into the electrolytic solution a reducing agent so as to maintain the reducing agent at a constant level according to the concentration of metal ions produced, thereby reducing the metal ions to obtain the metal nanoparticles. | 03-24-2011 |
20110121821 | MAGNETIC CORE FOR ELECTRIC CURRENT SENSORS - Provided is a magnetic core having an appropriate range of permeability and a high magnetic flux density, thereby being configured to have a small phase difference and a small size. The magnetic core can be use for electric current sensors. The magnetic core is made of an amorphous alloy having a composition represented by the general formula: Fe | 05-26-2011 |
20120060963 | SILVER YARN, PLIED YARN SILVER YARN, FUNCTIONAL FABRIC USING SAME, AND METHOD FOR PRODUCING SAME - The present invention relates to plied silver yarn using silver wire as thread, wherein the silver wire is entirely made of silver (Ag) or a silver alloy, to achieve antimicrobial properties and conductivity, as well as to functional fabric using same and to a method for producing same. The plied silver yarn of the present invention uses, as a core yarn, any one of at least one strand of silver wire and fiber yarn made from natural fiber or synthetic fiber, and uses the other as winding yarn covering the core yarn, wherein said one strand of silver wire is produced by casting a silver alloy containing pure silver or copper into a wire rod through directional solidification, and making the wire rod into a microfiber having a diameter of 0.015 to 0.05 mm through a pulling process. | 03-15-2012 |
20120091009 | METHOD AND APPARATUS FOR PRODUCING NANO-SIZED SILVER PARTICLES USING ELECTROLYSIS - Provided is a method and apparatus for producing silver nanoparticles in uniform shape and size using an electrolysis eco-friendly and in a simple way. The silver nanoparticles producing method includes the steps of: dissolving a reducing agent and an electrolyte into water in a reaction vessel to thereby prepare an electrolytic solution; placing a cathode rod that is made of a material different from that of silver nanoparticles to be obtained in the electrolytic solution so as to rotate in the reaction vessel, and placing at least one anode made of silver (Ag) at a certain distance from the cathode rod; ionizing the silver at the anode by an electrolysis in which direct-current (DC) power is applied between the cathode rod and the anode while rotating the cathode rod, so as to suppress silver crystallines on the surface of the cathode rod while stirring the electrolytic solution, to thereby form silver ions in the electrolytic solution; and reducing the silver ions by the reducing agent to thereby form the silver nanoparticles. | 04-19-2012 |
20120318678 | APPARATUS AND METHOD FOR PRODUCING METAL NANOPARTICLES USING GRANULE-TYPE ELECTRODES - An apparatus for producing metal nanoparticles using granule type electrodes, in which the metal nanoparticles having a uniform shape and nano-size are continuously mass-produced at low cost by filling metal granules in a pair of electrode housings spaced by a certain interval and electrolyzing the granules with alternating-current voltage. The apparatus includes a reaction vessel containing an electrolytic solution, first and second electrodes that are formed by filling a number of granules or flakes, in first and second electrode housings that are spaced by a gap in the reaction vessel, and a power supply that applies an alternating-current power between the first and second electrodes for electrolysis reaction, in which the first and second electrode housings comprise a number of holes or slits on at least two surfaces facing each other so that metal ions dissolved from the first and second electrodes can be discharged depending on the electrolysis reaction. | 12-20-2012 |
20150263286 | APPARATUS AND METHOD FOR FORMING ORGANIC THIN FILM AND MANUFACTURING METHOD OF ORGANIC THIN FILM DEVICE USING THE SAME - Provided is an organic thin film forming apparatus, an organic thin film forming method, and a method of manufacturing an organic thin film device using the same, in which an organic light-emitting layer (photoactive layer) and/or an electron transport layer can be formed on a substrate when an organic light emitting diode (OLED) or an organic solar cell is manufactured. The organic thin film forming apparatus includes: a solution spray unit for spraying a solution on a substrate; and a hot gas spray unit for spraying a hot gas onto fine liquid droplets that have been sprayed from the solution spray unit and that are in flight, to thereby evaporate a solvent contained in the fine liquid droplets. | 09-17-2015 |