Patent application number | Description | Published |
20110000704 | Printed Circuit Board and Method of Manufacturing the Same - Provided is a method of manufacturing a printed circuit board including, disposing first and second insulating members and first and second conductive films on both sides of a separating member to perform a thermocompression bonding process on the first and second insulating members and the first and second conductive films on the both sides of the separating member, so as to attach the first member to the second member with the separating member therebetween and attach the first insulating member to the first conductive film and attach the second insulating member to the second conductive film, selectively removing the first and second conductive films to form first and second circuit patterns, and cutting the separating member and the first and second insulating members to separate the first and second insulating members with the first and second circuit patterns from the separating member. | 01-06-2011 |
20110194229 | EMBEDDED CAPACITOR AND METHOD OF FABRICATING THE SAME - Disclosed are an embedded capacitor and a method of fabricating the same. The capacitor includes a metallic substrate, a metallic oxide layer on the metallic substrate, a first electrode layer on a first surface of the metallic oxide layer, and a second electrode layer on a second surface of the metallic oxide layer. | 08-11-2011 |
20110216999 | OPTICAL PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME - An optical printed circuit board is provided. The optical printed circuit board includes an insulation member, an optical fiber disposed in the insulation member and having opposite end portions exposed to a side of the insulation member, and at least one supporting member provided with a guide portion coupled to the opposite end portions of the optical fiber and guiding bending of the optical fiber. | 09-08-2011 |
20120002916 | Optical Module, and Optical Printed Circuit Board and Method of Manufacturing the Same - Provided are an optical module, and an optical printed circuit board and a method of manufacturing the same. The optical module includes an optical fiber, a first ferrule coupled to one end of the optical fiber, and a second ferrule coupled to the other end of the optical fiber. The optical printed circuit board includes a first board, an optical transmitter module and an optical receiver module, which are disposed on the first board, an optical fiber passing through the first board, the optical fiber extending integrally from a lower side of the optical transmitter module to a lower side of the optical receiver module, first and second ferrules coupled to one end and the other end of the optical fiber, respectively, the first and second ferrules being supported by the first board, and a second board through which the optical fiber passes, the second board being disposed below the first board. | 01-05-2012 |
20120201493 | Optical Printed Circuit Board and Method for Manufacturing the Same - Provided are an optical printed circuit board and a method for manufacturing the same. The optical printed circuit board includes a printed circuit board and an optical connecting module. The printed circuit board is provided with at least one or more inner layers, and a circuit pattern electrically connecting the inner layers. The optical connecting module is embedded in the printed circuit board and includes an optical transmitting portion, an optical receiving portion, and an optical waveguide connecting the optical transmitting portion and the optical receiving portion. The printed circuit board defines an align pattern region, such that tops of the optical transmitting portion and the optical receiving portion are formed lower than a surface of the printed circuit board. | 08-09-2012 |
20120263412 | Optical Printed Circuit Board and Method of Fabricating the Same - Provided are a photovoltaic apparatus and a manufacturing method thereof. The photovoltaic apparatus includes: substrate; a back electrode layer disposed on the substrate; a plurality of first intermediate layers disposed on the back electrode layer; a plurality of second intermediate layers disposed on the back electrode layer and each disposed between the first intermediate layers; light absorbing layers disposed on the first intermediate layers and the second intermediate layers; and a front electrode layer disposed on the light absorbing layer. | 10-18-2012 |
Patent application number | Description | Published |
20130294473 | MELTING APPARATUS FOR MELT DECONTAMINATION OF RADIOACTIVE METAL WASTE - Disclosed herein is a melting apparatus for melt-decontaminating radioactive metal waste. The melting apparatus includes a melting furnace, a high frequency generator, a ladle, a bogie, a cooling unit and a dust collector. The melting furnace includes a crucible into which the metal waste is input, and an induction coil which is wound around the crucible to melt the metal waste. The induction coil has a hollow hole in which cooling fluid flows. The high frequency generator applies high-frequency current to the induction coil. The ladle supplies molten metal, from which slag has been removed in the crucible, into molds. The bogie is disposed adjacent to the ladle and is provided with the molds, each of which forms an ingot using the molten metal supplied thereinto. The cooling unit cools the cooling fluid and circulates it along the induction coil. The dust collector filters out dust and purifies gas. | 11-07-2013 |
20130296629 | METHOD OF TREATING RADIOACTIVE METAL WASTE USING MELT DECONTAMINATION - Disclosed herein is a method of treating radioactive metal waste using melt decontamination, wherein radioactive metal waste, which is generated from nuclear fuel processing facilities or nuclear fuel production facilities, and which cannot be easily treated by surface decontamination because it has a complicated geometric shape, and the surface contamination of which cannot be measured, can be treated by melt decontamination. The method is advantageous in that radioactive metal waste, which cannot be treated by conventional surface decontamination, can be treated, so that radioactive metal waste can be recycled, thereby obtaining economic profits, and further in that a large storage space necessary for cutting and then storing radioactive metal waste is not required, and in that excessive manpower and cost are not required. | 11-07-2013 |
20130297228 | METHOD OF MEASURING RADIOACTIVE MATERIAL OF INGOT USING NaI GAMMA SCINTILLATOR - Disclosed is a method of measuring radioactive material of an ingot, in which an ingot having a volume produced by subjecting metal waste generated in nuclear fuel processing or production facilities to melting decontamination undergoes gamma spectroscopy using a NaI detector to measure gamma rays of U-235 (185.72 keV, 57.2%) among uranium isotopes, followed by performing detector calibration using a certified reference material and self-absorption correction depending on the density of a medium using MCNP computer code, and which enables rapid determination of whether the ingot subjected to melting decontamination may be self-disposed of or not. | 11-07-2013 |
20130297229 | METHOD OF MEASURING RADIOACTIVE MATERIAL OF INGOT USING HPGe GAMMA SCINTILLATOR - Disclosed is a method of measuring radioactive material of an ingot, in which an ingot having a volume produced by subjecting metal waste generated in nuclear fuel processing or production facilities to melting decontamination undergoes gamma spectroscopy using a HPGe detector to measure gamma rays of U-235 (185.72 key, 57.2%) among uranium isotopes, followed by performing detector calibration using a certified reference material and self-absorption correction depending on the density of a medium using MCNP computer code, and which enables rapid determination of whether the ingot subjected to melting decontamination may be self-disposed of or not. | 11-07-2013 |
Patent application number | Description | Published |
20100228042 | METHOD AND APPARATUS FOR PREPARING FATTY ACID ALKYL ESTER USING FATTY ACID - A method and an apparatus for preparing fatty acid alkyl ester for bio-diesels are disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol, without a catalyst. The method does not require the purification process of the catalyst and glycerin, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuels comprises the step of esterifying fatty acid raw material with alcohol, under a temperature of 200 to 35O0 C and a pressure of atmospheric pressure to 10 bar. The apparatus for preparing fatty acid alkyl ester for bio-diesel fuels, comprises: the first reactor for esterifying fatty acid raw material with alcohol under a temperature of 2000 C to 35O0 C and a pressure of atmospheric pressure to 10 bar and for converting 80 to 90% of total fatty acid into fatty acid alkyl ester; and the second reactor for converting remaining fatty acid unconverted at the first reactor into fatty | 09-09-2010 |
20110015348 | BLEND OF POLYESTER AND POLYCARBONATE HAVING TRANSPARENCY AND HEAT RESISTANCE - A polyester/polycarbonate blend having superior transparency and heat resistance which is useful for producing transparent polyester articles is disclosed. The blend of polyester and polycarbonate includes (a) polyethyleneterephthalate (PET) prepared with terephthalic acid component and ethylene glycol component, or copolymerized polyethyleneterephthalate prepared with terephthalic acid component and ethylene glycol component, and further copolymerized with 1 to 10 mol % of isophthalic acid, cyclohexane dimethanol (CHDM), di-ethylene glycol and/or alkylene glycol of 3 to 6 carbon atoms component with respect to acid or diol components; (b) polycarbonate (PC); and (c) CHDM modified PET prepared with 20 to 80 mol % CHDM with respect to diol components, wherein the amount of the PC is 10 to 60 wt % with respect to the mixture of (a) PET and (b) PC, and the amount of the (c) CHDM modified PET is 0.2 to 2.5 times by weight with respect to the amount of (b) PC. | 01-20-2011 |
20110218355 | METHOD AND APPARATUS FOR PREPARING ALKYL ESTER FATTY ACID USING FATTY ACID - A method for preparing fatty acid alkyl ester for bio-diesel fuel is disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuel comprises the step of carrying out a counter current type esterification reaction of fatty acid and alcohol in each tray of a counter current column reactor at a temperature of 200 to 350 and a pressure of 1 to 35 bar. Here the raw material of the fatty acid is fed to an upper part of the counter current column reactor and the alcohol is fed to a lower part of the counter current column reactor. The counter current column reactor has a number of trays which are installed horizontally to have a number of vertical compartments. Each of the number of trays has an opening part at one end thereof to communicate one compartment with an adjoining compartment. The opening parts of two adjoining trays are alternately installed with each other. | 09-08-2011 |
20110245550 | PROCESS FOR PREPARING IODINATED AROMATIC COMPOUNDS - The present invention relates to a process for preparing iodinated aromatic compounds. Particularly, the present invention comprises the step of performing the iodination of a non-halogenated aromatic compound, a monoiodo aromatic compound, a diiodo aromatic compound, and iodine in the presence of a zeolite catalyst under oxygen atmosphere. | 10-06-2011 |
20110257363 | METHOD FOR PREPARING POLYARYLENE SULFIDE - The present invention relates to a method for preparing polyarylene sulfide, in which the polyarylene sulfide is prepared by a polymerization reaction of reactants including a diiodo aromatic compound and a sulfur compound, the method including: further adding 0.01 to 10.0 wt. % of diphenyl disulfide with respect to the weight of the polyarylene sulfide to the reactants to form the polyarylene sulfide having a melting point of 265 to 320° C. | 10-20-2011 |
20110269879 | HIGH-STRENGTH POLYPHENYLENE SULFIDE/POLYETHYLENE TEREPHTHALATE BLEND RESIN COMPOSITION AND METHOD FOR PREPARING THE SAME - The present invention relates to a high-strength inflammable blend resin composition including a polyphenylene sulfide resin and a polyethylene terephthalate resin. More specifically, the resin composition of the present invention includes: a basic blend resin containing 10 to 80 wt. % of a polyphenylene sulfide resin, and 20 to 90 wt. % of a polyethylene terephthalate resin; and 0.1 to 20 parts by weight of a modified polystyrene or a styrene-based elastomer with respect to 100 parts by weight of the basic blend resin. | 11-03-2011 |
20110269935 | METHOD FOR PREPARING POLYARYLENE SULFIDE WITH REDUCED FREE IODINE CONTENT - The present invention relates to a method for preparing polyarylene sulfide with a reduced free iodine content. More specifically, the method for preparing polyarylene sulfide includes: (a) polymerizing reactants including a diiodo aromatic compound and a sulfur compound to form a polyarylene sulfide; and (b) maintaining the polyarylene sulfide product at 100 to 260° C. for heat-setting. The preparation method of the present invention effectively reduces the free iodine content of the polyarylene sulfide to prevent potential corrosion of facilities for the subsequent process and improves the properties of the polyarylene sulfide product such as thermal stability, so the method can be usefully applied to industrial fields in regard to the preparation of polyarylene sulfide. | 11-03-2011 |
20120029163 | METHOD OF PREPARING A HEAT-RESISTANT POLYAMIDE - The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerisation with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately. | 02-02-2012 |
20120177854 | POLYESTER RESIN AND METHOD FOR PREPARING THE SAME - A polyester resin copolymerized with isosorbide and 1,4-cyclohexane dimethanol and having an improved impact strength, and a method for preparing the same are disclosed. The copolymerized polyester resin has an alternating structure of acid moieties which are derived from acid components and diol moieties which are derived from diol components, wherein the acid components comprise terephthalic acid, and the diol components comprise (i) 5˜99 mol % of 1,4-cyclohexanedimethanol and (ii) 1˜60 mol % of isosorbide with respect to the total diol components. | 07-12-2012 |
20120302726 | METHOD FOR PREPARING POLYARYLENE SULFIDE HAVING REDUCED IODINE CONTENT - This disclosure relates to a method for preparing polyarylene sulfide having reduced iodine content while having excellent thermal stability, specifically to a method comprising polymerization reacting a composition comprising diiodide aromatic compounds, sulfur compounds, and a polymerization terminator. The preparation method may effectively reduce iodine content of polyarylene sulfide to prevent corrosion of post processing equipment, improve properties of polyarylene sulfide such as thermal stability, and the like, and thus, it may be usefully applied in the industrial field relating to preparation of polyarylene sulfide. | 11-29-2012 |
20120329983 | POLYARYLENE SULFIDE HAVING REDUCED OUTGASSING AND PREPARATION METHOD THEREOF - This disclosure relates to polyarylene sulfide that may exhibit excellent processability at low temperature, decrease outgassing and flash or burr generation, and thus may satisfactorily mold a product requiring high molding accuracy, and a method for preparing the same. Specifically, the polyarylene sulfide includes an arylene sulfide repeat unit and an arylene disulfide repeat unit, wherein the weight ratio of the arylene sulfide repeat unit:arylene disulfide repeat unit is 1:0.0001 to 1:0.05. | 12-27-2012 |
20120329984 | POLYARYLENE SULFIDE AND PREPARATION METHOD THEREOF - This disclosure relates to polyarylene sulfide that may exhibit and maintain excellent properties and a method for preparing the same, wherein the polyarylene sulfide is in the form of pellet of 2 to 10 mm size immediately after melt polymerization, and has residual solvent content of 300 ppm or less, based on the total weight of resin. | 12-27-2012 |
20130115438 | POLYARYLENE SULFIDE HAVING EXCELLENT PROCESSABILITY AND PREPARATION METHOD THEREOF - The present invention relates to polyarylene sulfide, in which a ratio of a peak area of a polymer chain of a second polyarylene sulfide having a lower molecular weight than the maximum peak molecular weight to a peak area of a polymer chain of a first polyarylene sulfide having a higher molecular weight than the maximum peak molecular weight is 1.3 or less in the molecular weight distribution of the polyarylene sulfide, as measured by gel permeation chromatography using polystyrene as a standard, and a preparation method thereof. This polyarylene sulfide exhibits excellent processability and generates no burrs (flashes) or the like, and can satisfactorily mold a product requiring high molding precision. | 05-09-2013 |
20130116484 | CATION-EXCHANGED ZEOLITE CATALYST AND PROCESS FOR PRODUCING MONO-IODO BENZENE THROUGH TRANSIODINATION BY USING IT - The present invention relates to a cation-exchanged zeolite catalyst for an transiodination and a process for producing mono-iodo benzene by using it. Particularly, the cation-exchanged zeolite catalyst has a molar ratio of Si/Al from 5 to 100 and is ion-exchanged with an alkali metal or an alkaline earth metal in range of 2% to 50% of ion exchange capacity. | 05-09-2013 |
20140350215 | METHOD FOR PREPARING POLYARYLENE SULFIDE HAVING REDUCED IODINE CONTENT - This disclosure relates to a method for preparing polyarylene sulfide having reduced iodine content while having excellent thermal stability, specifically to a method comprising polymerization reacting a composition comprising diiodide aromatic compounds, sulfur compounds, and a polymerization terminator. The preparation method may effectively reduce iodine content of polyarylene sulfide to prevent corrosion of post processing equipment, improve properties of polyarylene sulfide such as thermal stability, and the like, and thus, it may be usefully applied in the industrial field relating to preparation of polyarylene sulfide. | 11-27-2014 |
20150353687 | METHOD FOR PREPARING POLYARYLENE SULFIDE WITH REDUCED FREE IODINE CONTENT - The present invention relates to a method for preparing polyarylene sulfide with a reduced free iodine content. More specifically, the method for preparing polyarylene sulfide includes: (a) polymerizing reactants including a diiodo aromatic compound and a sulfur compound to form a polyarylene sulfide; and (b) maintaining the polyarylene sulfide product at 100 to 260° C. for heat-setting. The preparation method of the present invention effectively reduces the free iodine content of the polyarylene sulfide to prevent potential corrosion of facilities for the subsequent process and improves the properties of the polyarylene sulfide product such as thermal stability, so the method can be usefully applied to industrial fields in regard to the preparation of polyarylene sulfide. | 12-10-2015 |