Patents Assigned to Posco
  • STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE AND LONGITUDINAL STRENGTH UNIFORMITY, AND MANUFACTURING METHOD THEREFOR
    Publication number: 20230357907
    Abstract: The present invention relates to a steel sheet used for a line pipe or the like, and particularly, to a steel sheet having excellent hydrogen induced cracking resistance, and longitudinal strength uniformity, and a method for manufacturing the same.
    Type: Application
    Filed: July 13, 2023
    Publication date: November 9, 2023
    Applicant: POSCO CO., LTD
    Inventors: Seong-Ung Koh, Hyo-Shin Kim, Yoen-Jung Park
  • Electrical steel sheet adhesive coating composition, electrical steel sheet product, and manufacturing method therefor
    Patent number: 11807922
    Abstract: An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 7, 2023
    Assignee: POSCO CO., LTD
    Inventors: Jung-Woo Kim, Bongwoo Ha, Taeyoung No, Won-Seog Bong
  • CONSTRAINED-TYPE VIBRATION-DAMPING METAL SHEEET HAVING FOAM PORES AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230347623
    Abstract: Provided are a constrained-type vibration-damping metal sheet having foam pores and a method for manufacturing same. The constrained-type vibration-damping metal sheet of the present invention comprises: a lower metal sheet; a foam resin film bonded to the lower metal sheet; and an upper metal sheet bonded to the foam resin film, wherein the foam resin film has foam pores comprising, by wt % of itself, 85-95% of a thermoplastic polyethylene resin having a number average molecular weight of 8000-12000, 0.1-1% of stearic acid, 1-5% of a styrene-ethylene-butadiene-styrene (SEBS) resin, 0.5-5% of a foaming agent, 1-4% of a dicumyl peroxide crosslinking agent, and 0.5-2% of ZnO foaming aid.
    Type: Application
    Filed: September 13, 2021
    Publication date: November 2, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Jin-Tae Kim, Yang-Ho Choi, Ha-Na Choi, Dae-Gyu Kang
  • SURFACE TREATMENT COMPOSITION FOR TERNARY HOT-DIP GALVANNEALED STEEL SHEET, SURFACE-TREATED TERNARY HOT-DIP GALVANNEALED STEEL SHEET USING SAME, AND PREPARATION METHOD THEREOF
    Publication number: 20230348732
    Abstract: The present disclosure is to provide a surface treatment composition that may impart excellent corrosion resistance, blackening resistance, and alkali resistance, and an intrinsic surface color property to a ternary hot-dip galvannealed steel sheet. The present disclosure provides a surface treatment composition containing: based on 100 wt% of a solid content of the composition, 70 to 90 wt% of a resin mixture including a high molecular weight polysilicon-modified polyurethane main resin, a low molecular weight polysilicon-modified polyurethane auxiliary resin, and an acrylic urethane auxiliary resin; 5 to 25 wt% of a melamine-based curing agent; 0.5 to 10 wt% of an inorganic additive; 0.5 to 10 wt% of a silane coupling agent; 0.1 to 2 wt% of an adhesion promoter; 0.1 to 2 wt% of a coloring pigment; and 0.1 to 1 wt% of a pigment stabilizer.
    Type: Application
    Filed: September 2, 2021
    Publication date: November 2, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Soo-Hyoun Cho, Won-Ho Son
  • COMPOSITION RESIN COMPOSITION HAVING EXCELLENT WEATHER RESISTANCE AND HEAT-RADIATION CHARACTERISTICS, COMPOSITE-RESIN-COATED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230348712
    Abstract: The present invention relates to, in the provision of a material that has excellent weather resistance and heat-radiation characteristics, and thus, is suitable for solar cells, a composite resin composition having excellent weather resistance and heat-radiation characteristics, a composite-resin-coated steel sheet obtained therefrom, and a method for manufacturing the same.
    Type: Application
    Filed: September 24, 2021
    Publication date: November 2, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Du-Hwan Jo, Young-Jun Park, Hee-Jea Eun
  • Hot-dip galvanized steel sheet having excellent surface appearance and low-temperature bonding brittleness
    Patent number: 11801665
    Abstract: Provided is a hot-dip galvanized steel sheet to be used for home appliances, vehicles, and the like, and having excellent surface appearance and low-temperature bonding brittleness. The hot-dip galvanized steel sheet includes: a base steel sheet; and a hot-dip galvanized layer formed on the base steel sheet. A surface of the base steel sheet has a centerline average roughness (Ra) of 0.3 or more, a roughness skewness (Rsk) of ?1 or less, and a roughness kurtosis (Rku) of 6 or more.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: October 31, 2023
    Assignee: POSCO CO., LTD
    Inventor: Hyeon-Seok Hwang
  • Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereof
    Patent number: 11801664
    Abstract: Provided is a steel sheet for a hot press formed member having excellent resistance to hydrogen delayed fracture, and a method for manufacturing the same. A steel sheet for a hot press formed member comprises: a base steel sheet; an aluminum alloy plating layer on a surface of the base steel sheet; and an oxide layer which is formed on a surface of the plating layer and has a thickness of 0.05 ?m or more.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: October 31, 2023
    Assignee: POSCO CO., LTD.
    Inventors: Seong-Woo Kim, Jin-Keun Oh, Yeol-Rae Cho
  • Double oriented electrical steel sheet and method for manufacturing same
    Patent number: 11802319
    Abstract: A double oriented electrical steel sheet includes: 2.0 to 6.0% of Si, 0.0005 to 0.04% of Al, 0.0001 to 0.003% of S, 0.02 to 1.0% of Mn, equal to or less than 0.003% of N, excluding 0%, equal to or less than 0.01% of C, excluding 0%, equal to or less than 0.01% of Ti excluding 0%, 0.005 to 0.10% of P as wt %, and a remainder including Fe and inevitable impurities. Such a double oriented electrical steel sheet satisfies Formula 1: [Mn]/[S]?60,??[Formula 1] where, [Mn] and [S] are contents (wt %) of Mn and S, respectively.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 31, 2023
    Assignee: POSCO CO., LTD
    Inventors: Seil Lee, Sang-Woo Lee, Su-Yong Shin
  • SIDE SILL FOR VEHICLE
    Publication number: 20230339543
    Abstract: The present disclosure relates to a side sill for a vehicle, wherein the side sill is capable of absorbing an impact during lateral collision of the vehicle to maximally suppress the degree to which the side sill enters the interior, and protecting vehicle occupants and batteries. The side sill for a vehicle comprises: a side sill inner panel; a side sill outer panel coupled to the side sill inner panel; and a first cushioning member disposed between the side sill inner panel and the side sill outer panel and constituting a plurality of closed cross-sections arranged in the width direction of the side sill. The first cushioning member includes a main body formed by bending a single plate, and at least one partition member connecting both surfaces of the main body. A plurality of beads may be formed on the main body and the partition member.
    Type: Application
    Filed: October 8, 2021
    Publication date: October 26, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Gyu-Min Lee, Gi-Suk Chung, Kyung-Hwan Chung
  • Mold flux and casting method using same
    Patent number: 11794238
    Abstract: Provided is a mold flux used for casing a cast slab, the mold flux including, bases on a total wt % of thereof, 32-38 wt % of aluminum oxide (Al2O3), 8-12 wt % of strontium oxide (SrO), 8-12 wt % of potassium oxide (K2O), 8-12 wt % of fluorine (F), 5-8 wt % of boron oxide (B2O3), 3-5 wt % of lithium oxide (Li2O), and inevitable impurities. Thus, according to the mold flux, a change in components due to silicon oxide (SiO2) and calcium oxide (CaO) may be suppressed or prevented compared to those in the conventional art.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: October 24, 2023
    Assignee: POSCO CO., LTD
    Inventors: Jun Yong Park, Tae In Chung, Seong Yeon Kim
  • HIGH-STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT BENDABILITY AND LOW-TEMPERATURE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230332281
    Abstract: The present disclosure relates to a hot-rolled steel sheet utilized as material for heavy machinery, vehicle frames, and the like, and more specifically to a high-strength hot-rolled steel sheet having excellent bendability and low-temperature toughness and a method for manufacturing same.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Applicant: POSCO CO., LTD
    Inventors: Sung-Il Kim, Hee-Sung Kang, Hyun-Seok Tak
  • BATTERY CASE
    Publication number: 20230335848
    Abstract: The present invention relates to a battery case capable of minimizing the deformation of a battery by effectively coping with side collisions of an electric vehicle and the like, the battery case comprising: a case body for accommodating a battery cell; and a cover coupled to the case body, wherein the case body comprises: a bottom plate; side frames which are coupled to the bottom plate to surround the battery cell, and which include inner sidewalls and outer sidewalls; a mounting frame coupled to the outer sidewalls of the side frames; and at least one reinforcing material, which is arranged on the bottom plate and has longitudinal both-end portions inserted into the side frames, wherein the end portions of the reinforcing material may come in contact with the mounting frame by penetrating the inner sidewalls and the outer sidewalls of the side frames.
    Type: Application
    Filed: October 8, 2021
    Publication date: October 19, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Dong-Yoon Seok, Hong-Woo Lee, Jae-Hyun Kim
  • Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same
    Patent number: 11788166
    Abstract: An aspect of the present invention relates to a cold-rolled steel plate for hot forming, which is excellent in corrosion-resistance and spot-weldability, contains, by weight %, C: 0.1-0.4%, Si: 0.5-2.0%, Mn: 0.01-4.0%, Al: 0.001-0.4%, P: 0.001-0.05%, S: 0.0001-0.02%, Cr: 0.5% to less than 3.0%, N: 0.001-0.02%, and a balance of Fe and inevitable impurities, satisfying formula (1) below, and includes an Si amorphous oxidation layer continuously or discontinuously formed at a thickness of 1 nm-100 nm on the surface thereof. Formula (1): 1.4?0.4*Cr+Si?3.2 (wherein element symbols denote measurements of respective element contents by weight %).
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: October 17, 2023
    Assignee: POSCO CO., LTD
    Inventors: Jin-Keun Oh, Yeol-Rae Cho, A-Ra Cho, Jin-Ho Cha, Si-Myoung Heo, Jeong-Won Seo, Seong-Woo Kim
  • APPARATUS FOR ROLL STAMPING
    Publication number: 20230321711
    Abstract: An apparatus for roll stamping that is capable of expanding a shape range of a product without limitation due to, for example, a radius of curvature or a height of a variable section includes: an inclined roll set including a first rotation roll and a second rotation roll rotating while facing each other, have fixed positions and angles, and are inclined with respect to a traveling material, in which a first forming portion for forming the material is formed on an outer surface of the first rotation roll, the first forming portion includes a first circumferential groove portion inclined at an oblique angle rather than a right angle with respect to a rotation shaft of the first rotation roll.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 12, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Don-Gun Kim, Myung-Hwan Cha
  • COMPOSITION FOR ANTI-AGING OR SKIN REGENERATION COMPRISING ISOPROCURCUMENOL
    Publication number: 20230320957
    Abstract: Disclosed is a composition for anti-aging or skin regeneration comprising Isoprocurcumenol, and use of Isoprocurcumenol or a salt thereof and, more particularly, to a composition for anti-aging or skin regeneration comprising Isoprocurcumenol represented by the following formula (1) or a salt thereof, and use of Isoprocurcumenol or a salt thereof.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 12, 2023
    Applicants: POSCO CO., LTD, POSTECH Research and Business Development Foundation, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Kyong-Tai KIM, Kwang-Ho KWON, Sung-Wook KIM, Sung-Woo JEONG
  • COMPOSITION FOR ANTI-AGING OR SKIN REGENERATION COMPRISING OKANIN
    Publication number: 20230321003
    Abstract: Disclosed is a composition for anti-aging or skin regeneration comprising Okanin, and use of Okanin or a salt thereof and, more particularly, to a composition for anti-aging or skin regeneration comprising Okanin represented by the following formula (1) or a salt thereof, and use of Okanin or a salt thereof.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 12, 2023
    Applicants: POSCO CO., LTD, POSTECH Research and Business Development Foundation, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Kyong-Tai KIM, Kwang-Ho KWON, Sung-Wook KIM, Sung-Woo JEONG
  • Galvanized steel sheet having excellent hardness and galling resistance
    Patent number: 11781207
    Abstract: Provided is a galvanized steel sheet plated by vacuum deposition and, more specifically, to a galvanized steel sheet having excellent hardness and galling resistance, and a method for manufacturing same. The zinc coated steel sheet includes: a base steel sheet; and a zinc coated layer formed on the base steel sheet. The zinc coated layer is formed of a columnar structure, and a content of Mn included in the zinc coated layer is 0.1 to 0.4 wt %.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 10, 2023
    Assignee: POSCO CO., LTD
    Inventors: Kyung-Hoon Nam, Yong-Hwa Jung, Kyoung-Pil Ko, Tae-Yeob Kim, Woo-Sung Jung
  • Pattern-glass and solar light power generating module comprising same
    Patent number: 11784271
    Abstract: A pattern-glass, according to one embodiment of the present invention, can comprise: a base plate unit coupled to a support body; and a pattern unit provided in the base plate unit, and comprising a transmission area to which light transmits while an angle, formed between an entrance direction and a deviation direction in a light path formed by the light emitted from a light source, forms an obtuse angle range, and a reflection area in which an angle, formed between an entrance direction and a deviation direction in a light path of vision light transferred to an observer, forms an acute angle range so as to have reflectivity bigger than that in the transmission area.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 10, 2023
    Assignees: POSCO CO., LTD, RESEARCH INSTITUTTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Tae-Won Kim, Tae-Joon Park, A-Rong Kim, Ji-Sang Park, Kun-Hoon Baek
  • Magnesium alloy sheet and method for producing same
    Patent number: 11773472
    Abstract: The present invention relates to a magnesium alloy sheet and a manufacturing method thereof. In detail, the magnesium alloy sheet includes 0.5 to 3.5 wt % of Al, 0.5 to 1.5 wt % of Zn, 0.1 to 1.0 wt % of Ca, 0.01 to 1.0 wt % of Mn, a remainder of Mg, and other inevitable impurities with respect to an entire 100 wt % of a magnesium alloy sheet, wherein an average crystal grain size of the magnesium alloy sheet is 3 to 15 ?m, the magnesium alloy sheet includes a stringer, and a length of the stringer in a rolling direction (RD) is equal to or less than the maximum value of 50 ?m.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 3, 2023
    Assignee: POSCO CO., LTD
    Inventors: Jun Ho Park, Hyun Bom Lee, Jae Joong Kim, Oh-Duck Kwon
  • Grain-oriented electrical steel sheet and magnetic domain refining method therefor
    Patent number: 11772189
    Abstract: A grain-oriented electrical steel sheet according to an embodiment of the present invention includes: a groove on a line formed on one surface of an electrical steel sheet in a direction crossing a rolling direction; and a thermal shock portion on a line formed on one surface of the electrical steel sheet in the direction crossing the rolling direction, wherein a distance between the groove and the thermal shock portion is 1 mm or less.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 3, 2023
    Assignee: POSCO CO., LTD
    Inventors: Se-Min Park, Jae Soo Kim, Ki-Young Min, Seong-Cheol Hong, Won-Gul Lee