Patents Assigned to Posco
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Patent number: 8159946Abstract: Provided is a resource management method in a communication system, and more particularly, a resource management method based on priority in a wireless communication system. The resource management method in a wireless management network includes: setting a priority factor value with regard to a link flow for which link establishment is requested; and if a capacity required by the flow for which link establishment is requested exceeds a remaining capacity of a base station, increasing the remaining capacity of the base station by sequentially reducing a minimum reserved rate (MRR) value of flows that receive a service at a lower priority than the flow for which link establishment is requested to a maximum sustained rate (MSR) value, until the remaining capacity required by the flow for which link establishment is requested is generated.Type: GrantFiled: July 31, 2008Date of Patent: April 17, 2012Assignees: Postech Academy-Industry Foundation, PoscoInventors: Joo-Young Baek, Min-Kon Kwak, Dong-Hee Kwon, Young Joo Suh
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Patent number: 8151728Abstract: A gas wiping apparatus for use in coating a molten metal onto a steel strip. In the apparatus, a chamber, to which a high pressure gas is supplied, defines a multistage uniform pressure space. A lip support unit is associated with a front of the chamber to allow the high pressure gas to flow therethrough, the lip support unit supporting the apparatus against load. Upper and lower lips are associated with a front of the lip support unit to cooperatively define an outlet. The upper lip adjusts a gap of a gas outlet cooperatively with the lower lip, and can be easily installed in a lip support unit while adjusting the gap of the gas outlet stably. Also, edge over coating (EOC) of the steel strip can be prevented without an additional auxiliary nozzle.Type: GrantFiled: December 19, 2006Date of Patent: April 10, 2012Assignee: PoscoInventors: Dong Eun Lee, Myung Jong Cho, Pan Woo Seon, Sang Joon Kim
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Patent number: 8149409Abstract: There is provided an on-line detection system and method for a weld of a steel strip, which can emit a laser beam onto the surface of a steel strip moving at a high speed and measure the reflectivity of the laser beam reflecting from the same, thereby detecting the weld of the steel strip easily on-line. In the on-line detection system, reflectivity measuring means emits a laser beam onto a moving steel strip and continuously measuring the reflectivity of the laser beam returning from the surface of the steel strip, and signal processing means detects a weld of the steel strip based on change in the reflectivity measured on the weld.Type: GrantFiled: May 26, 2006Date of Patent: April 3, 2012Assignee: PoscoInventors: Choong-Soo Lim, Ki-Sam Son, Kwang-Ho Son, Sang-Jin Lee, Seung-Gap Choi, Ki-Jang Oh
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Patent number: 8145368Abstract: A method of controlling merging of a plurality of streams of vehicles in an automated vehicle system. The method comprises: Defining a merge control zone associated with a merge point, the merge control zone defining at least respective sections of the upstream tracks leading to the merge point; detecting a vehicle entering the merge control zone on a first one of the upstream tracks; allocating a passage time to the vehicle, the passage time being indicative of a time at which the vehicle is scheduled to pass the merge point; wherein allocating the passage time is based on a merge priority assigned to the vehicle according to a predetermined set of merge priority rules; controlling a speed of the vehicle responsive to the allocated passage time.Type: GrantFiled: May 26, 2009Date of Patent: March 27, 2012Assignee: POSCOInventors: Jin Myung Won, Ingmar Andreasson
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Patent number: 8139484Abstract: Provided is a traffic class of an IEEE 802.16/WiBro system. The unsolicited grant service (UGS) scheduling method with regard to a subscriber station (SS) and a base station (BS) that are disposed in a network wherein an IEEE 802.16/WiBro system is realized, the method includes: when the SS requires 1 through M (where M is a positive integer) UGS flows, and the BS serves 1 through N (where N is a positive integer) frames, the BS storing grant periods and guaranteed sizes that are granted to the M UGS flows in each N frame; and the BS comparing service capacity of a frame and a sum of guaranteed sizes of each flow belonging to the N frames, and determining if an overload occurs.Type: GrantFiled: August 28, 2008Date of Patent: March 20, 2012Assignees: Postech Academy-Industry Foundation, PoscoInventors: Joo-Young Baek, Min-Kon Kwak, Dong-Hee Kwon, Young Joo Suh
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Patent number: 8128763Abstract: A cold-rolled steel sheet for outer panels and the like of an automobile body, a galvannealed steel sheet using the cold-rolled steel sheet, and a method for manufacturing the same are disclosed. It is an object of the present invention to provide a high strength cold-rolled steel sheet, which has superior bake hardenability, aging resistance at room temperature and secondary work embrittlement resistance, and a method for manufacturing the same. The steel sheet has a grain size of ASTM No. of 9 or more after annealing, a BH of 30 MPa or more, an AI of 30 MPa or less, and a tensile strength of 340˜390 MPa through appropriate control of solute elements in steel by addition of a small amount of Ti, addition of Al and Mo, and control of manufacturing conditions, and refinement of crystal grains after annealing.Type: GrantFiled: September 22, 2006Date of Patent: March 6, 2012Assignee: POSCOInventor: Seong-Ho Han
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Patent number: 8124756Abstract: A method for preparing amino linker oligonucleotides is provided. More specifically, a method of preparing 5?-amino-linker oligonucleotides comprising the steps of: introducing an amino linker having a protecting group into the 5? terminus of an oligonucleotide; and removing the protecting group from the amino linker oligonucleotide by contacting with acetic acid and 2,2,2-trifluoroethanol is provided. The amino protecting group is efficiently removed from the amino linker oligonucleotides, and thereby achieving a high yield of the amino linker oligonucleotides.Type: GrantFiled: September 15, 2009Date of Patent: February 28, 2012Assignees: Postech Academy-Industry Foundation, PoscoInventors: Jung-Hwan Lee, Hyun-Gu Kang, Sung-Ho Ryu, Jong-In Kim, Sun-Hak Lee, Hye-Jung Lee, Eun-Jung Jang
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Patent number: 8119059Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that converts iron ore into reduced materials by reducing and plasticizing the iron ore, ii) a melter-gasifier into which the reduced materials are charged and oxygen is injected such that the melter-gasifier manufactures molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier into the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a gas injector that injects a gas into the fluidized-bed reduction reactor to remove stagnating layers.Type: GrantFiled: December 26, 2006Date of Patent: February 21, 2012Assignees: POSCO, Siemens VAI Metals Technologies GmbH & Co.Inventors: Min-Young Cho, Hang-Goo Kim, Myoung-Kyun Shin, Nag-Joon Choi, Kung-Won Nam, Sun-Kwang Jeong, Jun-Hyuk Lee
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Publication number: 20120037283Abstract: Provided are a high-strength, high-toughness steel wire rod and a method of manufacturing the same. The steel wire rod has a composition including 0.07 wt % to 0.14 wt % of aluminum (Al) and nitrogen (N) wherein Al:N (where Al and N denote wt % of each element) is in a range of 15:1 to 25:1. Since a steel wire rod having sufficient strength and toughness improvement effects can be obtained with a simple alloy component, a steel wire rod capable of allowing processing such as cold forging to be performed without an additional heat treatment may be provided.Type: ApplicationFiled: April 23, 2010Publication date: February 16, 2012Applicant: POSCOInventors: Dong-Hyun Kim, You-Hwan Lee, Sang-Yoon Lee, Hyung-Keun Cho
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Patent number: 8113139Abstract: A gas wiping apparatus is a type of equipment for coating a molten metal onto a steel strip, in which the molten metal solution deposited on the steel strip is wiped to adjust a coating thickness. The gas wiping apparatus includes a body containing a high pressure gas and a multiple nozzle unit disposed at the body to eject the high pressure gas onto a surface of a moving coated steel strip. The surface of the coated steel strip passing through a hot dipping bath filled with the molten metal is wiped by a high speed gas jet. Here, the molten metal is prevented from splashing even at a high-speed and the steel strip can be adjusted in the coating thickness stably and uniformly.Type: GrantFiled: December 12, 2006Date of Patent: February 14, 2012Assignee: PoscoInventors: Gun Young Kim, Hae Doo Park, Dong Eun Lee, Won Cheol Chung
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Publication number: 20120033419Abstract: An optical semiconductor lighting apparatus including a housing with a first end portion and a second end portion that is open, a light source module disposed in the housing, a fan disposed adjacent to the light source module in the housing, the fan rotating in a first direction to blow air toward the light source module, and a reflector disposed adjacent to the second end portion of the housing, the reflector enhancing an illumination scope. A moving path, in which at least a portion of the air drawn into the housing by the fan externally flows through the light source module, is formed in the housing.Type: ApplicationFiled: August 5, 2011Publication date: February 9, 2012Applicant: POSCO LED COMPANY LTD.Inventors: Dong-Soo Kim, Seok-Jin Kang, Min-A Jeong
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Patent number: 8096159Abstract: A lubricant supply apparatus for endless hot rolling equipment includes a width-detecting sensor for detecting widths of steel sheets continuously supplied toward a roller, a controller connected to the width-detecting sensor, a lubricant pump connected to and controlled by the controller to supply a lubricant to a lubricant line, solenoid valves disposed on sub lines formed by dividing the lubricant line and controlled by the controller to supply or cut off the lubricant, a water pump connected to and controlled by the controller to supply water to a water line, mixers for mixing the lubricant and the water supplied to the water line for each of the sub lines, and nozzles connected respectively to the mixers and disposed according to a width of the roller so as to spray a mixture onto the roller according to the widths of the steel sheets.Type: GrantFiled: November 7, 2006Date of Patent: January 17, 2012Assignee: PoscoInventors: Chul-Hee Kim, Seung-Lak Son
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Publication number: 20110300407Abstract: Provided are a coated steel sheet, a hot press formed product using the steel sheet, and a producing method thereof. Conditions for hot-dip coating bath are optimized when an aluminum-coated steel sheet is produced using a hot rolled steel sheet or a cold rolled steel sheet, and processes are controlled during production of a hot press formed product from the steel sheet, thereby forming a coating layer having a high ratio of (Fe3Al+FeAl) compound layer on the surface of the steel sheet. In cases where the (Fe3Al+FeAl) compound layer has an appropriate occupancy ratio with respect to the whole thickness of the coating layer, good resistance against crack and corrosion can be achieved to improve a local corrosion resistance of the hot press formed product, particularly, a pitting corrosion resistance. Therefore, high-quality hot press formed products can be produced with high productivity and lower costs.Type: ApplicationFiled: January 8, 2010Publication date: December 8, 2011Applicant: POSCOInventors: Yeol-Rae Cho, Tai-Ho Kim, Sung-Ho Park, Eung-Ryul Baek
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Patent number: 8056499Abstract: A gas wiping apparatus for use in coating a molten metal onto a steel strip. In the apparatus, a chamber, to which a high pressure gas is supplied, defines a multistage uniform pressure space. A lip support unit is associated with a front of the chamber to allow the high pressure gas to flow therethrough, the lip support unit supporting the apparatus against load. Upper and lower lips are associated with a front of the lip support unit to cooperatively define an outlet. The upper lip adjusts a gap of a gas outlet cooperatively with the lower lip, and can be easily installed in a lip support unit while adjusting the gap of the gas outlet stably. Also, edge over coating (EOC) of the steel strip can be prevented without an additional auxiliary nozzle.Type: GrantFiled: December 19, 2006Date of Patent: November 15, 2011Assignee: PoscoInventors: Dong Eun Lee, Myung Jong Cho, Pan Woo Seon, Sang Joon Kim
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Patent number: 8052924Abstract: There is provided a high strength steel plate with high manganese having excellent burring workability, which is used for structural members, bumper reinforcing materials and impact absorbing materials of automobiles, etc. The high strength steel plate includes, by weight: C: 0.2 to 1.0%, Mn: 10 to 25%, Al: 0.3 to 3.0%, S: 0.05% or less, P: 0.05% or less, and the balance of Fe and inevitable impurities, wherein the chemical elements satisfactorily have a grain size of 18 ?m or more. The high strength steel plate can be useful to facilitate formation of automobile parts since it has excellent physical properties such as elongation and hole expansibility as well as strength.Type: GrantFiled: December 20, 2007Date of Patent: November 8, 2011Assignee: PoscoInventors: Sung Kyu Kim, Kwang Geun Chin
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Patent number: 8052921Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that reduces and plasticizes iron ore and converts the iron ore into reduced materials, ii) a melter-gasifier into which the reduced ore is charged and oxygen is injected, the melter-gasifier manufacturing molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier to the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a cyclone that is installed in the fluidized-bed reduction reactor to collect fine iron ore. A gas injector, which prevents the fine ore from adhering by injecting gas containing carbon, is connected to the cyclone.Type: GrantFiled: December 26, 2006Date of Patent: November 8, 2011Assignees: POSCO, Siemens VAI Metals Technologies GmbH & Co.Inventors: Myoung-Kyun Shin, Sang-Hyun Kim, Jun-Hyuk Lee, Kung-Won Nam
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Patent number: 8051770Abstract: A robot binding apparatus for coil packaging includes: a grip unit that grips a band used for packaging a coil; a grip robot that supports the grip unit, rotates the grip unit seizing the band at the periphery of the coil to make the band wound on the coil, and moves the band to a fastening position; a head unit that provides the band to the grip unit and fastens the band at the band fastening position; and a head robot that supports the head unit and moves the head unit to the band fastening position.Type: GrantFiled: January 9, 2009Date of Patent: November 8, 2011Assignee: Posco M-TechInventor: Seung Yong Song
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Patent number: 8047718Abstract: In a bearing device for a roll of a hot dipping bath, i.e., zinc pot, a sleeve is fastened to a shaft of the roll of the hot dipping bath in a continuous hot dip coating line, i.e., a continuous galvanizing line. A bush housing has a bush internally fixed to support the sleeve, and a curved annular outer surface. Also, bush housing fixed rings are fixed to both inner sides of a fixed ring housing which is associated with a rig of the hot dipping bath roll. Each of the bush housing fixed rings has a curved annular inner surface supporting the bush housing at both sides thereof and in abutment with the curved annular outer surface of the bush housing. The invention allows the steel sheet to be coated with molten metal stably and speedily with high efficiency. Also, the bush and sleeve of the bearing device are not locally worn away, thereby extending useful life of the roll.Type: GrantFiled: December 15, 2006Date of Patent: November 1, 2011Assignee: PoscoInventors: Gun-Young Kim, Yung-Up Kim, Hong-Jong Yoo, Gyn-Sam Hwang
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Publication number: 20110264775Abstract: A method and apparatus for supporting a Mobile Internet Protocol (MIP) service based on Proxy Mobile IP (PMIP) in a portable Internet network is provided. In the method for supporting a MIP service based on PMIP in a portable Internet network including multiple subnets, a Portable Subscriber Station (PSS) performs an initial network entry procedure to a first subnet, and then acquires an IPv6 address that it uses as a Home of Address (HoA). A first Access Control Router (ACR) in the first subnet, configures an IPv6 address of the first ACR as a first Care of Address (CoA) of the PSS, and performs a MIPv6 registration procedure with a Home Agent (HA) using the HoA of the PSS and the first CoA. As a result, the PSS, even though it undergoes handover, has no need to perform a CoA acquisition procedure or its MIPv6-related procedure in the new subnet, making it possible to receive a seamless service without delay and packet loss for the ongoing service.Type: ApplicationFiled: August 7, 2008Publication date: October 27, 2011Applicant: POSCO ICT CO., LTD.Inventors: Dong-Hyun Lee, Su-Lyeon Seong
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Publication number: 20110259481Abstract: There is provided a high strength steel plate including, by weight: 0.03% to 0.20% C, 0.15% to 0.55% Si, 0.9% to 1.5% Mn, 0.001% to 0.05% Al, 0.030% or less P, 0.030% or less S, 0.30% or less Cr, 0.2% or less Mo, 0.6% or less Ni, 0.07% or less V, 0.04% or less Nb, 5 ppm to 50 ppm Ca, 0.005% to 0.025% Ti, 0.0020% to 0.0060% N, 0.0005% to 0.0020% B, the balance of F and unavoidable impurities. The steel plate may be formed of tempered martensite, and conditions for cooling and recrystallization controlled rolling are optimized so as to control an average grain size of a microstructure and an aspect ratio of structure grains. Accordingly, a superior high-strength steel plate that can be used for an atomic plant, for example, an atomic plant rated at IOOOMW or more by having a tensile strength of at least 650 MPa and an impact toughness of at least 200 J at ?5O ° C., and a method of manufacturing the same can be provided.Type: ApplicationFiled: December 21, 2009Publication date: October 27, 2011Applicant: POSCOInventors: Soon-Taik Hong, Sung-Ho Jang, Ki-Hyun Bang