| KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY Patent applications |
| Patent application number | Title | Published |
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| 20120112114 | VALVE FOR PREVENTION OF FROZEN BREAK USING PHASE CHANGE MATERIAL - A valve for preventing freeze-fracturing prevents accidental freeze-fracturing due to the freezing of water by draining water from a flow pipe before the danger of freezing occurs when the temperature of ambient air drops. The valve for preventing freeze-fracturing includes a housing coupled to a pipe port and a draining chamber provided in a portion of the housing that faces the pipe port. The draining chamber has therein a water inlet hole, which communicates with an inside of the flow pipe, and a water outlet hole, which communicates with an outside of the housing. A storage chamber is provided in a portion of the housing that is opposite the draining chamber, and contains therein a phase change material, which decreases in volume while changing in phase from liquid to solid. A plunger is movably disposed in the draining chamber to open and close the water inlet hole. | 05-10-2012 |
| 20120082590 | GAS HYDRATE REACTOR COMPRISING THERMOELECTRIC MODULE - Disclosed is a gas hydrate reactor including a supply line for supplying water and gas, a thermoelectric module assembly, a front panel including an observation window, and a housing to which the thermoelectric module assembly and the front panel are attached and into which water and gas are supplied using the supply line so that a gas hydrate is formed therein. This reactor enables rapid and precise temperature control, thus allowing accurate data about properties to be easily acquired in kinetics, phase equilibrium, morphology and microscopic (Raman, XRD, etc.) research of a gas hydrate, thereby leading to the discovery of a gas hydrate production/decomposition mechanism and ensuring important information necessary for a gas hydrate application process. | 04-05-2012 |
| 20120077306 | Method for Fabricating Solar Cell Using Inductively Coupled Plasma Chemical Vapor Deposition - In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. At least one of the second-type layer, the intrinsic layer and the first-type layer is formed as a crystallized Si layer by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H | 03-29-2012 |
| 20120077303 | Method for Fabricating Solar Cell Using Inductively Coupled Plasma Chemical Vapor Deposition - In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. The method comprising forming a second-type layer including an amorphous silicon (Si) carbide thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H | 03-29-2012 |
| 20120041102 | NOVEL EPOXY RESIN AND EPOXY RESIN COMPOSITION COMPRISING THE SAME - The present invention relates to a novel epoxy resin having improved heat-resistance, thermal expansion properties and processability, and to a thermosetting resin composition comprising the same. To this end, the present invention provides an epoxy resin of Chemical Formula 1 as disclosed in the Description, an epoxy resin composition comprising the same, and a packaging, substrate and transistor formed thereof. When a composition that contains an epoxy resin with a specific side functional group according to the present invention and/or an epoxy resin with a specific core structure is cured, a filler forms a strong chemical bond with the epoxy resin, thereby maximizing filling effects of the filler for the epoxy resin. Moreover, with the specific core structure, heat resistance and heat expansion properties of a cured product are substantially improved (CTE is reduced), and enhanced glass transition properties, strength and processability are demonstrated. | 02-16-2012 |
| 20110316538 | OPENING AND CLOSING MODULE, CONTROL METHOD FOR THE SAME, IMAGING APPARATUS USING THE SAME - An imaging apparatus includes: a rotator having a shape of a perforated circular plate and rotating around a rotating axis of a center of the perforated circular plate; and a supporter having a perforated circular plate and one side of which is connected to one side of the rotator such that the rotator is restricted only to rotation movement. The supporter includes a supporter opening/closing part a part of which is separated along the rotating axis and then rotates by a predetermined angle around the rotating axis, and the rotator includes a rotator opening/closing part a part of which integrally moves with the supporter opening/closing part. | 12-29-2011 |
| 20110272629 | LYOTROPIC CHROMONIC LIQUID CRYSTAL COMPOSITION, METHOD FOR MANUFACTURE OF LYOTROPIC CHROMONIC LIQUID CRYSTAL COATING FILM, AND LYOTROPIC CHROMONIC LIQUID CRYSTAL COATING FILM MANUFACTURED THEREBY - The present invention relates to a lyotropic chromonic liquid crystal composition, a method for manufacturing a lyotropic chromonic liquid crystal coating film and a lyotropic chromonic liquid crystal coating film manufactured thereby. The lyotropic chromonic liquid crystal composition of the present invention includes chromonic liquid crystal compounds and monomers each having opposing acid-base properties. Use of the lyotropic chromonic liquid crystal composition in the formation of optical films leads to improvements in electrical and optical properties such as mechanical strength, an insulating characteristic and a refractive index. | 11-10-2011 |
| 20110263913 | DEVICE AND METHOD FOR CONTINUOUS HYDRATE PRODUCTION AND DEHYDRATION BY CENTRIFUGAL FORCE - Disclosed herein is an apparatus and method for continuously producing and dehydrating gas hydrates. The apparatus includes a gas source, a water source, a reactor, a spinning wheel, and a centrifugal separator. The gas source and the water source are connected to the reactor. Gas and water are respectively supplied from the gas source and the water source into the reactor and react with each other in the reactor to form gas hydrate slurry. The spinning wheel and the centrifugal separator are provided in the reactor. The spinning wheel supplies the formed gas hydrate slurry to the centrifugal separator. The centrifugal separator dehydrates the gas hydrate slurry. Water removed from the gas hydrate slurry by the dehydration of the centrifugal separator is re-supplied into the reactor. | 10-27-2011 |
| 20110236710 | ELECTRICALLY CONDUCTIVE AND ANTI-CORROSIVE COATING COMPOSITION, A METHOD FOR PREPARING THE SAME AND AN ARTICLE COATED WITH THE SAME - The present invention relates to a coating composition having excellent electro-conductivity and corrosion resistance, a method of preparing the coating composition, and an article coated with the coating composition. More particularly, the present invention relates to a coating composition having excellent surface electro-conductivity and corrosion resistance, comprising: one or more base resins selected from the group consisting of a polyester resin, an epoxy resin, a polyurethane resin, an acrylic resin, a polyolefin resin, a fluorine resin, a polycarbonate resin and a phenol resin; a melamine-based curing agent; one or more selected from among carbon black and carbon nanotubes; metal powder; and organic clay, a method of preparing the coating composition, and an article coated with the coating composition. | 09-29-2011 |
| 20110236251 | MAGENSIUM-BASED ALLOY FOR HIGH TEMPERATURE AND MANUFACTURING METHOD THEREOF - Provided is a manufacturing method of a magnesium-based alloy for high temperature. The manufacturing method includes melting a magnesium (Mg) or magnesium alloy into a liquid phase, adding calcium oxide (CaO) 1.4 times the weight of a final calcium (Ca) target composition onto a surface of a melt in which the magnesium or the magnesium alloy is melted, forming a targeted amount of Ca in the magnesium or magnesium alloy through a reduction reaction between the melt and the added CaO. Specifically, the amount of Ca formed is in the range of 0.8 wt % to 2.4 wt %, and a final composition of the Mg alloy includes 6.0-8.0 wt % of aluminum (Al), 0.1-0.3 wt % of manganese (Mn), 0.2-0.3 wt % of strontium (Sr), less than 0.04 wt of zinc (Zn), less than 0.9 wt of tin (Sn), and a balance being Mg. | 09-29-2011 |
| 20110236250 | MAGNESIUM ALLOY FOR ROOM TEMPERATURE AND MANUFACTURING METHOD THEREOF - Provided is a magnesium alloy for room temperature, which is manufactured by adding CaO onto a surface of a molten magnesium alloy and exhausting the CaO through a reduction reaction of the CaO with the molten magnesium alloy. Resultantly, the magnesium alloy with CaO added has more improved room-temperature mechanical properties (tensile strength, yield strength, elongation) than magnesium alloys without using CaO. Furthermore, as the added amount of CaO increases, room-temperature mechanical properties (tensile strength, yield strength, elongation) increase as well. | 09-29-2011 |
| 20110236249 | MAGNESIUM-BASED ALLOY WITH SUPERIOR FLUIDITY AND HOT-TEARING RESISTANCE AND MANUFACTURING METHOD THEREOF - Provided are a magnesium-based alloy and a manufacturing method thereof. In the method, a magnesium alloy is melted into liquid phase, and an alkaline earth metal oxide is added into a molten magnesium alloy. The alkaline earth metal oxide is exhausted through surface reduction reaction between the melt and the alkaline earth metal oxide. Alkaline earth metal produced by the exhaustion reacts with Mg and/or other alloying elements in the magnesium alloy so that an intermetallic compound is formed. The magnesium prepared by the method is excellent in fluidity and hot-tearing resistance. To this end, the alkaline earth metal oxide added is CaO, and the added amount of CaO is 1.4 to 1.7 times the target weight of Ca to be contained in the final Mg alloy. | 09-29-2011 |
| 20110211987 | ZR-TI-NI (CU) BASED BRAZING FILLER ALLOY COMPOSITIONS WITH LOWER MELTING POINT FOR THE BRAZING OF TITANIUM ALLOYS - Disclosed is Zr—Ti—Ni (Cu)-based filler alloy composition having low melting point for brazing titanium and titanium alloys. The Zr—Ti—Ni (Cu)-based alloy composition is expressed as: ZraTibNic (Formula 1) where a,b and c denote atomic % of Zr, Ti and Ni, respectively; 47| 09-01-2011 | |
| 20110123391 | ALUMINUM ALLOY AND MANUFACTURING METHOD THEREOF - Provided are an aluminium alloy and a manufacturing method thereof. In the method, aluminium and a magnesium (Mg) master alloy containing a calcium (Ca)-based compound are provided. A melt is prepared, in which the Mg master alloy and the Al are melted. The aluminum alloy may be manufactured by casting the melt. | 05-26-2011 |
| 20110123390 | ALUMINUM ALLOY AND MANUFACTURING METHOD THEREOF - Provided are an aluminium alloy and a manufacturing method thereof. In the method, aluminium and a master alloy containing a calcium (Ca)-based compound are provided. A melt is prepared, in which the master alloy and the Al are melted. The aluminum alloy may be manufactured by casting the melt. | 05-26-2011 |
| 20110121215 | Solenoid Valve Controlled By Wireless Communication - A solenoid valve controlled by wireless communication, in which the operation of the valve is controlled by wireless communication, thereby reducing costs and labors necessary for installation and maintenance. The solenoid valve includes a valve body having an inlet port, through which fluid is introduced, and an outlet port, through which fluid is discharged; a plunger movably mounted inside the valve body to open or close one or both of the inlet and outlet ports; a solenoid, which drives the plunger to a position, in which the plunger opens or closes one or both of the inlet and outlet ports, when electric power is supplied; and a communication module provided on the valve body. The communication module receives a wireless control signal transmitted from outside and controls the electric power supplied to the solenoid valve depending on the wireless control signal. | 05-26-2011 |
| 20110120595 | METHOD FOR FORMING CONVERSION COATING ON OUTER SURFACE OF MAGNESIUM OR MAGNESIUM ALLOY - Disclosed is a method for forming a conversion coating on the outer surface of magnesium or a magnesium alloy by surface treatment with acidic and alkaline solutions. The method is carried out in an environmentally friendly manner to improve the corrosion resistance of the magnesium or magnesium alloy. The method minimizes the damage to the appearance of the magnesium or magnesium even after surface treatment and maximizes the attractive appearance of the magnesium or magnesium alloy. | 05-26-2011 |
| 20110114497 | METHOD FOR SURFACE TREATMENT OF MAGNESIUM OR MAGNESIUM ALLOY BY ANODIZATION - Disclosed herein is a method for the surface treatment of magnesium or a magnesium alloy by anodization to form an anodized oxide coating on the magnesium or magnesium alloy. The method comprises: removing impurities and an oxide layer present on the surface of magnesium or a magnesium alloy using a strongly alkaline aqueous solution (pretreatment); and immersing the pretreated magnesium or magnesium alloy in an alkaline electrolyte and applying a direct current having a current density of 3 A/dm | 05-19-2011 |
| 20110064643 | APPARATUS AND METHOD FOR CONTINUOUSLY PRODUCING AND PELLETIZING GAS HYDRATES USING DUAL CYLINDER - Disclosed herein is an apparatus for continuously producing and pelletizing gas hydrates. The apparatus includes a gas supply unit, a water supply unit and a reactor. Gas and water are respectively supplied from the gas supply unit and the water supply unit into the reactor. The gas and water react with each other in the reactor. The reactor includes a dual cylinder unit which forms a gas hydrate in such a way as to squeeze a slurry of reaction water formed by the reaction between the gas and water. The dual cylinder unit includes an upper cylinder, a lower cylinder and a connection pipe which connects the upper cylinder to the lower cylinder. The connection pipe has passing holes through which the reaction water in the reactor flows into and out of the connection pipe. | 03-17-2011 |
| 20110041582 | FORMING DEVICE FOR THIXOEXTRUSION AND METHOD THEREOF - Thixoextrusion molding apparatuses and methods are provided. One embodiment of the apparatuses comprises: a container having a first through-hole storing 10 to 30 parts by weight of a semi-solid billet therein and a heater installed outside the first through-hole to maintain the temperature of the semi-solid billet constant; a stem insertable into the first through-hole from the front of the container to pressurize the semi-solid billet in the backward direction; a die ring coupled to the back of the container and having a plurality of coolant inflow/outflow holes to prevent thermal deformation in the circumferential direction; a die body disposed inside the die ring and having a second through-hole, which is in communication with the first through-hole of the container and has a smaller diameter than the first through-hole of the container, through which the semi-solid billet is extruded and a plurality of thermocouple insertion holes for measuring the temperature of the semi-solid billet; a die body support coupled to the back of the die body inside the die ring and having a plurality of coolant inflow/outflow holes so as to change the phase of the extruded semi-solid billet to a solid extrudate; a die balance support held in close contact with the die body support and coupled to the back of the die ring; and a cooling unit coupled to the die balance support to cool the solid extrudate. According to the apparatuses and methods, metals can be molded under a low extrusion pressure, the life of the apparatuses is prolonged, the strength of the metal products is improved, the ignition of the metals is inhibited during processing, the amount of a protective gas used is reduced, and the formation of welding lines is inhibited. | 02-24-2011 |
| 20110010001 | DIGITAL GARMENT USING KNITTING TECHNOLOGY AND FABRICATING METHOD THEREOF - A digital garment and a fabrication method thereof are provided. The digital garment is fabricated using a knitting technique. The digital garment comprises a plurality of knitting yarns forming loops at regular intervals and interwoven through the loops, and one or more conductive digital yarns tied to the loops of the knitting yarns to form high-speed information communication circuits. The knitting yarns and the digital yarns are knitted together into a garment. During knitting, the digital yarns are used to form high-speed information communication circuits in a rapid and economical manner. | 01-13-2011 |
| 20110005187 | MANUFACTURING METHOD AND APPARATUS FOR PRODUCING DIGITAL YARNS USING HYBRID METAL FOR HIGH SPEED COMMUNICATION AND DIGITAL YARNS THEROEF - A manufacturing method and apparatus for producing digital yarns using hybrid metal for high speed communication, which can be connected to a network to exchange information in real time in the ubiquitous era, and digital yarns made using the method thereof. The manufacturing method and apparatus for producing digital yarns using hybrid metal for high speed communication and digital yarns thereof comprises producing a hybrid metal rod; drawing the hybrid metal rod; producing a micro filament; feeding the micro filament; softening the micro filament; forming a sliver; forming a spun yarn; winding the spun yarn; coating the spun yarn with an electromagnetic shielding resin; drying the spun yarn with the electromagnetic shielding resin; and covering the spun yarn with a textile yarn and the digital yarn made in accordance with this method. | 01-13-2011 |
| 20110003210 | Polyolefin Microporous Membrane Surface-Modified By Hydrophilic Polymer, Surface Modification Method Thereof And Lithium-Ion Polymer Battery Including The Same - Disclosed herein are a polyolefin microporous membrane of which surface is modified by a hydrophilic polymer, a surface modification method thereof and a lithium ion polymer battery including the surface-modified polyolefin microporous membrane as a separator. | 01-06-2011 |
| 20110000412 | DIGITAL GARMENT USING EMBROIDERY TECHNOLOGY AND FABRICATING METHOD THEREOF - Disclosed is a digital garment using embroidery technology. In the digital garment, a digital embroidery pattern is formed on a common garment to provide a communication path, an antenna pattern, etc. The digital garment comprises a garment made of a textile and having one side and the other side opposite to each other, a digital embroidery pattern formed along the inner or outer surface of the garment using embroidery technology to provide a communication path to the garment, a sensor attached to the garment and electrically connected to the digital embroidery pattern to convert physical signals to electrical signals, an arithmetic unit attached to the garment and electrically connected to the digital embroidery pattern to process the electrical signals inputted from the sensor, and a communication module attached to the garment and electrically connected to the digital embroidery pattern to perform wireless communication. Further disclosed is a method for fabricating the digital garment using embroidery technology. | 01-06-2011 |
| 20100307796 | Method for Selective Adsorption of Noble Metal Onto Surface of Polymer - The present disclosure relates to a method for the selective adsorption of a noble metal catalyst onto a surface of a polymer. More particularly, the method of the present invention includes a first step of masking with a photo mask, the surface of a polymer adsorbed with a photosensitive metal ion, and radiating light onto the surface of the polymer such that the photosensitive metal ion on the unmasked surface is oxidized, and a second step of permitting the photosensitive metal ion which is not oxidized in the first step to react to a noble metal catalyst such that the noble metal catalyst is adsorbed onto the surface of the polymer. | 12-09-2010 |
| 20100230065 | Integrated Management System And Method For Molten Aluminum - An integrated management system for molten aluminum includes a melting process management system, which melts aluminum raw material, taps molten aluminum, and extracts information related to the molten aluminum; a recording medium attached to a high-heat-retention ladle, which is for carrying the molten aluminum, wherein the extracted information is recorded into the recording medium; a portable terminal, which reads the information from the recording medium; and a casting process management system, which manages delivery confirmation and inspection by receiving the information from the transported high-heat-retention ladle via the portable terminal and performs a casting process based on the information. The integrated management system and method ensures improved and efficient process management based on correct molten aluminum information, thereby reducing management costs and time. | 09-16-2010 |
| 20100210061 | METHOD FOR FABRICATING SOLAR CELL USING INDUCTIVELY COUPLED PLASMA CHEMICAL VAPOR DEPOSITION - A method for fabricating a solar cell using inductively coupled plasma chemical vapor deposition (ICP-CVD) including a first electrode, a P layer, an intrinsic layer, an N-type layer and a second electrode. The method includes forming an intrinsic layer including a hydrogenated amorphous silicon (Si) thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H | 08-19-2010 |
| 20100206367 | METHOD FOR FABRICATING SILICON NANO WIRE, SOLAR CELL INCLUDING SILICON NANO WIRE AND METHOD FOR FABRICATING SOLAR CELL - A method for fabricating a silicon nano wire, a solar cell including the silicon nano wire and a method for fabricating the solar cell. The solar cell includes a substrate, a first++-type poly-Si layer formed on the substrate, a first-type silicon nano wire layer including a first-type silicon nano wire grown from the first++-type poly-Si layer, an intrinsic layer formed on the substrate having the first-type silicon nano wire layer, and a second-type doping layer formed on the intrinsic layer. | 08-19-2010 |
| 20100165251 | MICROLENS ASSEMBLY FORMED WITH CURVED INCLINE AND METHOD FOR MANUFACTURING THE SAME, AND LIGHT GUIDING PLATE, BACK LIGHT UNIT AND DISPLAY USING THE SAME - Provided are a light guiding plate for providing a background light source to a non-emission display device, a back light unit, and a microlens used therein. The microlens having a curved incline formed therein is made of a light transmitting material to reflect and refract light emitted from a light source. Here, the microlens has a polyhedral shape including a bottom face, a top face opposed to the bottom face, and a plurality of side faces formed between the bottom face and the top face, wherein at least one side face crossing a traveling direction of the light emitted from the light source among the plurality of side faces is a curved face inclined about the bottom face. | 07-01-2010 |
| 20100087856 | Absorbable bulky multi-filament draw textured yarn, manufacturing method thereof and medical use using them - An absorbable multifilament draw-textured yarn having a bulky structure, and a manufacturing method and medical use thereof The absorbable multifilament draw-textured yarn is obtained by draw-texturing a multifilament made of an absorbable polymer and has bulkiness and a superior soft touch, which are the characteristics of draw-textured yarns. As a result of partially imparting a bulkiness of 150-1000% to the multifilament draw-textured yarn, it is possible to culture cells in the bulky structure, and the multifilament draw-textured yarn is suitable for cell delivery or drug delivery. | 04-08-2010 |
| 20100054949 | RANDOM PITCH IMPELLER FOR FUEL PUMP - A random pitch impeller for a fuel pump has number of blades. An incremental angle of the blades is set by the expression: | 03-04-2010 |
| 20100033096 | Atmospheric pressure plasma apparatus - Disclosed is an atmospheric pressure plasma apparatus for enhancing and or controlling the dissociation of a secondary gas by converting a source gas into a plasma state at atmospheric pressure and controlling the interaction between that plasma and the secondary gas using porous metal, and ceramic tubes to create a path having controllable isolation from the region where plasma is generated. | 02-11-2010 |
| 20090304561 | REACTOR FOR SEPARATING ALUMINIUM FROM MULTI-LAYER FILM MATERIALS - Disclosed is a reactor for separating an aluminum layer from a multi-layer film wastes to reuse a multi-layer film waste without burying or incinerating the multi-layer film waste including the aluminum. The reactor comprises a cylindrical casing which is filled with a solution to dissolve aluminum layers of the multi-layer film wastes pulverized into a pre-, determined size, a partition which divided an inner portion of the casing into a reactor tub in which the solution reacts with the aluminum layer and a separator tub which is provided at a portion of the reactor tub to decompose the pulverized multi-layer film wastes in which the aluminum is completely dissolved by the solution, and a stirrer which is installed at an upper portion of the reactor and stirs the solution in the reactor to activate the reaction between the solution and the aluminum in the reactor tub and transfer the multi-layer film wastes to the separator tub and. The partition is spaced apart from a bottom of the casing to form a passage between the bottom of the casing and the partition, and the reactor tub communicates with the separator tub through the passage. | 12-10-2009 |
| 20090247655 | METHOD FOR PREPARING PERMANENTLY HYDROPHOBIC AEROGEL AND PERMANENTLY HYDROPHOBIC AEROGEL PREPARED BY USING THE METHOD - A method for preparing permanently hydrophobic aerogel and permanently hydrophobic aerogel prepared by the method. The method comprises adding sodium silicate to HCl at 30 to 90° C. until an acidity reaches pH 3-5, to form silica hydrogel under acidic conditions of pH 3-5, washing the silica hydrogel with distilled water using a mixer, followed by filtering, adding the silica hydrogel to a silylating solution of silylating agent in n-butanol at pH 1-5 using an acid selected from hydrochloric acid, sulfuric acid, phosphoric acid and nitric acid, to simultaneously conduct silylation and solvent replacement, and drying the silica hydrogel; The method has the following advantages; i) silylation and solvent replacement can be simultaneously conducted, ii) n-butanol is used as a reaction solvent instead of methanol upon silylation, thus obtaining a thermal conductivity comparable to conventional aerogel powders, iii) silylation is conducted under improved conditions, i.e., strong acidic conditions of pH 1-5, and as a result, all of the aerogel powders can be reacted with a silylating agent, thereby obtaining permanently hydrophobic aerogel, iv) the washing with a mixer makes the amount of removed sodium ions uniform, thus it is suitable for mass-production, and v) the method provides a relatively simplified procedure and the use of the silylating agent in a small amount enables low costs and mass-production. | 10-01-2009 |
| 20090237397 | APPARATUS AND METHOD FOR SEARCHING FOR 3-DIMENSIONAL SHAPES - Disclosed herein is an apparatus and method for searching for 3-dimensional shapes. The apparatus includes, an input means, an acquisition module, a storage means, a comparison and search module, an output means, and control means. The input means receives 3-dimensional image data. The acquisition module acquires a 2-dimensional image data group about the shape of an object represented by the 3-dimensional image data. The comparison and search module compares the respective data of the acquired 2-dimensional image data group with the respective data of the 2-dimensional image data groups that are previously stored in the storage means, and searches for 3-dimensional image data. The control means controls the modules and the means. | 09-24-2009 |
| 20090191112 | METHOD AND APPARATUS FOR FABRICATING HIGH PURITY SILICON COMPACTS USING SILICON POWDERS, AND BINDER-FREE SILICON COMPACT FABRICATED BY THE SAME - Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type. | 07-30-2009 |
| 20090056300 | Process and apparatus for producing digital yarns using metal filaments for info-communications and digital yarns produced by said process - A process and apparatus of producing conductive yarns in use for info-communication and conductive yarns produced thereby, in which the conductive yarns are produced using metal filaments. The conductive yarns and the production process thereof can improve productivity and thus save production costs over conventional conductive yarns and the production processes thereof. The conductive yarns can be produced into fine yarns of minimized cross section and with various colors. Clothes made of the conductive yarns can perform an info-communication function without any breakage in a repeatedly bending part and be washed. | 03-05-2009 |
| 20080292493 | Quaternary Pb-free solder composition incorporating Sn-Ag-Cu-In - Provided is a quaternary Pb-free solder composition incorporating Sn—Ag—Cu—In, which can prevent a cost increase and sufficiently ensure proccessability and mechanical property as a solder material. To this end, indium (In) with appropriate amount is added into the Pb-free solder composition, and the addition amount of Ag is optimized, thus preventing a decrease in wettability caused by a decrease in the amount of Ag and improving resistance to a thermal cycling and a mechanical impact. The quaternary Pb-free solder composition includes silver (Ag) of about 0.3 wt. % or more, and less than about 2.5 wt. %, copper (Cu) of about 0.2 wt. % or more, and less than about 2.0 wt. %, indium (In) of about 0.2 wt. % or more, and less than about 1.0 wt. % or less, and a balance of tin (Sn). | 11-27-2008 |
| 20080245774 | Laser-rotate arc hybrid welding system and thereof method - The present invention relates to a laser-rotating arc hybrid welding system and a welding method using the system. The laser-rotating arc hybrid welding system of the present invention includes an arc discharge unit ( | 10-09-2008 |
