Patents Assigned to Posco
  • Patent number: 10724039
    Abstract: The present disclosure relates to a DNA aptamer which specifically binds to an insulin receptor, and a composition for treating diabetes and a composition for diagnosing diabetes which contain the same as an active ingredient, and the aptamer is characterized by being able to treat and diagnose diabetes more effectively than side effects caused by insulin such as increased incidence of cancer and atherosclerosis by having a different binding mechanism from existing insulin.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: July 28, 2020
    Assignees: Posco, Postech Academy-Industry Foundation
    Inventors: Sung Ho Ryu, Na-Oh Yunn, Jong Hun Im, Ara Koh, Eun Ju Oh, Sehoon Park, Jiyoun Lee, Sung Key Jang, Seungmin Han, Youndong Kim
  • Publication number: 20200231637
    Abstract: The present invention relates to an antimicrobial adhesive protein, an antimicrobial nanoparticle, an antimicrobial composition comprising the same nanoparticle, and a preparation method for the same composition and, more particularly, to an antimicrobial adhesive protein in which an antibiotic peptide is linked to a mussel adhesive protein, a mussel adhesive protein derivative in which a tyrosine residue within the antimicrobial adhesive protein is modified with a catechol derivative, an antimicrobial nanoparticle including a metal capable of forming a coordinate bond with a derivative of the mussel adhesive protein and having intrinsic antimicrobial activity, an antimicrobial composition comprising the same nanoparticle, and a preparation method for the same composition.
    Type: Application
    Filed: July 13, 2018
    Publication date: July 23, 2020
    Applicants: POSCO, POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Hyung Joon Cha, Yun Kee Jo, Yeonsu Jeong
  • Patent number: 10711321
    Abstract: The present invention relates to a non-oriented electrical steel sheet adhesive coating composition including the constituent elements below, a non-oriented electrical steel sheet product, and a manufacturing method thereof. The non-oriented electrical steel sheet adhesive coating composition includes: a first component including an organic/inorganic composite; and a second component including a composite metal phosphate, wherein the organic/inorganic composite is formed by having inorganic nanoparticles chemically substituted with some functional groups in an organic resin, the organic resin is one, or two or more, selected from an epoxy-based resin, an ester-based resin, an acrylic resin, a styrene-based resin, a urethane-based resin, and an ethylene-based resin, and the inorganic nanoparticles are one, or two or more, selected from SiO2, Al2O3, TiO2, MgO, ZnO, and ZrO2.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 14, 2020
    Assignee: POSCO
    Inventors: Jung Woo Kim, Ji Hyun Kim, Jae Song Kim, Jae Hoon Kim
  • Patent number: 10710152
    Abstract: Provided is a meniscus flow control device that includes: a meniscus flow detection unit for detecting, in a meniscus flow form of molten steel, relative temperature values for positions measured by temperature measurers, and relatively comparing the temperature values measured by the temperature measurers to thereby determine the flow state of the molten steel meniscus to be normal or abnormal; a magnetic field generation unit, installed outside a mold, for generating a magnetic field and controlling the flow of the molten steel by the magnetic field; and a flow control unit for maintaining the operation of the magnetic field generation unit in the current state when the meniscus flow state detected by the meniscus flow detection unit is determined to be normal, and for controlling the magnetic field generation unit to adjust the meniscus flow to be normal when the detected meniscus flow state is determined to be abnormal.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: July 14, 2020
    Assignee: POSCO
    Inventors: Sang Woo Han, Seon Yong Jin, Hyun Jin Cho
  • Patent number: 10704151
    Abstract: A pickling apparatus includes a plurality of pickling tanks in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped; an intermediate spraying unit, disposed between a pickling tank at the front end and a pickling tank at the rear end, for spraying a pickling solution onto the steel plate; and a pickling solution supply means configured to provide a pickling solution of a concentration used in the pickling tank at the rear end to the intermediate spraying unit, wherein a wringer roll disposed between the plurality of pickling tanks is removed.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 7, 2020
    Assignee: POSCO
    Inventor: Hyoung-Kuk Park
  • Patent number: 10704116
    Abstract: A high-strength thin steel sheet having excellent drawability and bake hardenability, and a method of manufacturing the same are provided. The high-strength thin steel sheet includes 0.0005 to 0.003 wt % of carbon (C); 0.5 wt % or less (excluding 0 wt %) of silicon (Si); 1.2 wt % or less (excluding 0 wt %) of manganese (Mn); 0.005 to 0.12 wt % of phosphorous (P); 0.008 wt % or less of sulfur (S); 0.005 wt % or less of nitrogen (N); 0.1 wt % or less (excluding 0 wt %) of acid-soluable aluminum (Al); 0.01 to 0.04 wt % of titanium (Ti); iron (Fe) as a remainder thereof; and unavoidable impurities. The high-strength thin steel sheet has BH of 4 MPa or more and P of 80% or more in Equation 1: P (%)={Nin/(Nin+Ngb)}×100, Nin being the number of carbides having a size of 20 nm or less within a crystal grain, and Ngb being the number of carbides having a size of 20 nm or less at a grain boundary.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: July 7, 2020
    Assignee: POSCO
    Inventor: Sang-Ho Han
  • Patent number: 10696858
    Abstract: An ink composition for a printed steel sheet, having excellent adhesion to a steel sheet, processability, solvent resistance, and the like, a method for manufacturing a printed steel sheet using the same, and a printed steel sheet manufactured thereby, are provided. The ink composition for a steel material includes 10 to 30 parts by weight of a mixture of a urethane acrylate oligomer and another type of acrylate oligomer different from the urethane acrylate oligomer, 65 to 80 parts by weight of a radiation curable monomer which is a mixture of a monofunctional radiation curable monomer and a di- or more functional radiation curable monomer, 1 to 10 parts by weight of a photoinitiator, and 0.01 to 10 parts by weight of an adhesion promoter.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 30, 2020
    Assignees: POSCO, INKTEC CO., LTD.
    Inventors: Ha-Na Choi, Kyung-Pyo Yu, Jin-Tae Kim, Chan-Hee Park, Jung-Hwan Lee, Yon-Kyun Song
  • Patent number: 10696329
    Abstract: An automotive front side frame including a bent portion having a bent form, in at least a portion, comprises an outer frame including a front outer portion and a rear outer portion disposed further to a rear of a vehicle frame than the front outer portion and formed to have tensile strength higher than tensile strength of the front outer portion; and an inner frame including a front inner portion and a rear inner portion disposed further to the rear of the vehicle frame than the front inner portion and formed to have tensile strength higher than tensile strength of the front inner portion.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: June 30, 2020
    Assignee: POSCO
    Inventors: Ji-Woong Ha, Jae-Hyun Kim, Yeon-Sik Kang
  • Patent number: 10689735
    Abstract: A high strength steel sheet comprises 0.02 to 0.12 wt % of carbon (C), 0.5 to 2.0 wt % of manganese (Mn), 0.05 to 0.5 wt % of silicon (Si), 0.05 to 1.0 wt % of nickel (Ni), 0.005 to 0.1 wt % of titanium (Ti), 0.005 to 0.5 wt % of aluminum (Al), 0.015 wt % or less of phosphorus (P), 0.015 wt % or less of sulfur (S), and the balance of Fe and other inevitable impurities. The microstructure thereof includes 70% to 90% of ultrafine ferrite and 10% to 30% of MA (martensite/austenite) structure by area fraction, and the yield ratio (YS/TS) thereof is 0.8 or less.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 23, 2020
    Assignee: POSCO
    Inventors: Sung-Ho Jang, Woo-Gyeom Kim, Ki-Hyun Bang
  • Patent number: 10677755
    Abstract: An apparatus for detecting inner defects of a steel plate comprises an all-defect detection unit for detecting all defects including surface defects present on the surface of the steel plate and inner defects present inside the steel plate by intensity of leakage flux, measured by generating magnetic flux in a strike direction of the steel plate; a surface defect detection unit for detecting surface defects by intensity of leakage flux, measured by generating magnetic flux in the thickness direction of the steel plate, for a predetermined detection region including all the defects detected by the all-defect detection unit; and a data processing unit for detecting only inner defects present in a detection region by excluding the detected surface defects from all the defects detected by the all-defect detection unit, for the detection region, thereby detecting only the inner defects of the steel plate.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 9, 2020
    Assignee: POSCO
    Inventors: Ju-Seung Lee, Sang-Woo Choi, Se-Ho Choi, Jong-Pil Yun, Ho-Moon Bae
  • Patent number: 10672552
    Abstract: Disclosed is an adhesive laminate core manufacturing apparatus for successively forming lamina members of a predetermined shape while allowing a strip-shaped material, of which the surface is coated with an adhesive layer, to pass therethrough, and successively manufacturing laminate cores comprising the lamina members integrated, per predetermined sheet, by interlaminar bonding. The adhesive laminate core manufacturing apparatus according to one aspect of the present invention comprises: a protrusion forming unit pressing the material for the delamination of the laminate cores, so as to form interlaminar division protrusions on the surface of the material at each predetermined position along the longitudinal direction of the material; a blanking unit blanking the material so as to successively form the lamina members; and a lamination unit integrating the lamina members so as to successively manufacture the laminate cores.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 2, 2020
    Assignee: POSCO DAEWOO CORPORATION
    Inventors: Il Gwen Chung, Sae Jong Lim, Jang Hwan Seal, Seung Chul Lee, Chang Don Park, Jung Gyu Chi, Jae Young Lee
  • Patent number: 10666119
    Abstract: Disclosed herein is a bonded-type laminated core member manufacturing apparatus including an adhesive application unit to apply an adhesive to a material being continuously transferred, and a laminating unit configured to integrate laminar members laminated within a laminating hole by blanking the material, a laminated core member being manufactured by interlayer adhesion between the laminar members, and the laminating unit includes an adhesive hardener to harden the adhesive located between the laminar members so as to integrate the laminar members passing through the laminating hole, and pinchers provided under the adhesive hardener to apply lateral pressure to the laminated core member so as to prevent falling of the laminated core member. Since the laminated core members may be stably extracted, damage to the laminated core member due to falling may be prevented and the laminated core members in an aligned state may be extracted.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 26, 2020
    Assignee: POSCO TMC CO., LTD.
    Inventors: Il Gwen Chung, Suk Jo Kang, Jae Young Lee, Chang Il Choi
  • Patent number: 10655196
    Abstract: Provided are an austenitic steel having excellent machinability and ultra-low temperature toughness in a weld heat-affected zone including 15 wt % to 35 wt % of manganese (Mn), carbon (C) satisfying 23.6C+Mn?28 and 33.5C?Mn?23, 5 wt % or less (excluding 0 wt %) of copper (Cu), chromium (Cr) satisfying 28.5C+4.4Cr?57 (excluding 0 wt %), and iron (Fe) as well as other unavoidable impurities as a remainder, wherein a Charpy impact value of a weld heat-affected zone at ?196° C. is 41 J or more, and a method of manufacturing the steel. According to the present invention, a low-cost ultra-low temperature steel may be obtained, a stable austenite phase may be formed at low temperature, carbide formation may be effectively suppressed, and a structural steel having excellent machinability and ultra-low temperature toughness in a weld heat-affected zone may be provided.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: May 19, 2020
    Assignee: POSCO
    Inventors: Soon-Gi Lee, Jong-Kyo Choi, Young-Hwan Park, Hee-Goon Noh, Hyun-Kwan Cho, In-Shik Suh, In-Gyu Park, Hong-Ju Lee
  • Patent number: 10655205
    Abstract: The present invention relates to an apparatus for removing top dross of a plating pot where a snout and an air knife are arranged, the snout being arranged between the front end region and the rear end region of a plating pot. The present invention provides an apparatus for removing top dross of a plating pot, the apparatus comprising: a first wiping means which is mounted on the plating pot and is arranged between the snout and the air knife so as to be movable in the width direction of the plating pot; a second wiping means which is mounted on the plating pot and is rotatably arranged between the air knife and the first wiping means so as to transfer, to the rear end region, the top dross transferred by the first wiping means; and a third wiping means which is mounted on the plating pot and is rotatably arranged between the air knife and the front end region so as to transfer the top dross to the front end region. Thereby, the present invention provides an advantageous effect of effectively removing dross.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 19, 2020
    Assignee: POSCO
    Inventors: Yong Hun Kweon, Tae In Jang, Yeon Chae Jeung
  • Patent number: 10655204
    Abstract: Provided is a hot press formed article having good anti-delamination and having a hot dip aluminized layer formed on the surface of a base steel sheet. The base steel sheet comprises 0.18-0.25 wt % of C, 0.1-0.5 wt % of Si, 0.9-1.5 wt % of Mn, 0.03 wt % or less of P, 0.01 wt % or less of S, 0.01-0.05 wt % of Al, 0.05-0.5 wt % of Cr, 0.01-0.05 wt % of Ti, 0.001-0.005 wt % of B, 0.009 wt % or less of N and the balance of Fe and other impurities. The aluminized layer comprises a single soft diffusion layer comprising ?-Fe with solid-solubilized Al, and the hardness of the diffusion layer is 300-600 (Hv).
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: May 19, 2020
    Assignee: POSCO
    Inventor: Heung-Yun Kim
  • Publication number: 20200149127
    Abstract: The purpose of one aspect of the present disclosure is to provide: a cold rolled steel sheet for a flux-cored wire, having excellent low temperature toughness, welding workability and processability; and a manufacturing method thereof. One embodiment of the present disclosure provides: a cold rolled steel sheet for a flux-cored wire, comprising, by wt %, 0.005-0.10% of C, 0.05-0.25% of Mn, 0.05% or less of Si (excluding 0%), 0.0005-0.01% of P, 0.008% or less of S (excluding 0%), 0.005-0.06% of Al, 0.0005-0.003% of N, 0.8-1.7% of Ni, 0.1-0.5% of Cr, and a balance of Fe and inevitable impurities, and having 0.10-0.75 of WN defined by Relationship 1 below; and a manufacturing method therefor. Relationship 1: WN=(31×C+0.5×Mn+20×Al)×(Ni)×(0.6×Cr).
    Type: Application
    Filed: July 5, 2018
    Publication date: May 14, 2020
    Applicant: POSCO
    Inventors: Jai-Ik Kim, Min-Gwan Seong, Jin-A Kim
  • Patent number: 10648083
    Abstract: A pre-coating agent composition for a grain-oriented electrical steel sheet, a grain-oriented electrical steel sheet including the same, and a manufacturing method thereof are provided. Particularly, a pre-coating agent composition for a grain-oriented electrical steel sheet including an acid containing boron (B); and a solvent, a grain-oriented electrical steel sheet including the same, and a manufacturing method thereof are provided.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 12, 2020
    Assignee: POSCO
    Inventors: Min Soo Han, Soon-Bok Park, Bungkwan Shon
  • Patent number: 10643771
    Abstract: A method of manufacturing a non-oriented electrical steel sheet is disclosed. A method of manufacturing a non-oriented electrical steel sheet according to the present invention includes reheating slab consisting of Si: 2.0-4.0%, acid-soluble Al: 0.01-0.04%, Mn: 0.20% or less, Sb: 0.005-0.10%, N: 0.005% or less, S:0.005% or less, C: 0.005-0.015%, Fe in a balance amount, and other inevitable impurities in weight percent (wt %); hot rolling the slab to prepare a hot rolled steel sheet; cold rolling the hot rolled steel sheet to prepare a cold rolled steel sheet; primarily recrystallization-annealing the cold rolled steel sheet; and high-temperature annealing the cold rolled steel sheet subjected to the primarily recrystallization-annealing.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: May 5, 2020
    Assignee: POSCO
    Inventors: Hunju Lee, Sang-Woo Lee, Su-Yong Sin
  • Patent number: 10640840
    Abstract: An HPF molding member having a melted aluminum plating layer formed on the surface of a base steel sheet and excellent delamination resistance. The base steel sheet comprises: 0.18-0.25% by weight of C; 0.1-1.0% by weight of Si; 0.9-1.5% by weight of Mn; 0.03% by weight or less of P; 0.01% by weight or less of S; 0.01-0.05% by weight of Al; 0.05-0.5% by weight of Cr; 0.01-0.05% by weight of Ti; 0.001-0.005% by weight of B; 0.009% by weight or less of N; and the balance Fe and other impurities. The plating layer consists of a soft diffusion layer and a hard alloy layer, the hard alloy layer having a tau layer irregularly and non-continuously dispersed and distributed on the inside thereof at 10% or more of the entire area fraction. The difference in hardness between the alloy layer and the diffusion layer is 400 (Hv) or less.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 5, 2020
    Assignee: POSCO
    Inventors: Heung-Yun Kim, Il-Ryoung Sohn, Dae-Chul Bae
  • Patent number: 10626504
    Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 ?m, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 21, 2020
    Assignee: POSCO
    Inventors: Myung-Soo Kim, Hyeon-Seok Hwang, Young-Jin Kwak