Patents Assigned to Kobe Steel, Ltd.
  • Patent number: 11952941
    Abstract: A CAES power generation device includes: a compressor/expander combined machine that is of displacement type and has a function as a compressor for compressing air and a function as an expander for expanding compressed air; a motor/generator combined machine that is mechanically connected to the compressor/expander combined machine and has a function as an electric motor for driving the compressor/expander combined machine and a function as a generator driven by the compressor/expander combined machine; and a pressure accumulation tank that is fluidly connected to the compressor/expander combined machine and stores compressed air generated by the compressor/expander combined machine.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 9, 2024
    Assignee: KOBE STEEL, LTD.
    Inventor: Masaki Matsukuma
  • Patent number: 11945031
    Abstract: A method for manufacturing an additively-manufactured object in which deposition is performed by melting and solidifying a metal depending on three-dimensional shape data of a target shape, includes: acquiring the three-dimensional shape data; creating a deposition plan in which a formation track and a heating condition of the metal are determined; determining a difference between a shape of the additively-manufactured object that thermally contracts by cooling after deposition and a shape of the three-dimensional shape data by an operation; modifying the deposition plan until the difference falls within a predetermined allowable range; and additively manufacturing the additively-manufactured object based on the deposition plan in which the difference falls within the allowable range.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: April 2, 2024
    Assignee: KOBE STEEL, LTD.
    Inventors: Takemasa Yamasaki, Tatsuya Fujii, Shinji Sato, Takeshi Yamada
  • Patent number: 11946580
    Abstract: A joined body includes a tubular first member, and a second member including a plate-shaped wall portion in which a through-hole is formed, the first member being inserted into the through-hole. The collar member is interposed between the first member and the second member in at least a part of the hole peripheral wall of the through-hole. The first member and the second member are joined by expanding the first member at a portion corresponding to the through-hole.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: April 2, 2024
    Assignee: KOBE STEEL, LTD.
    Inventors: Yasuhiro Maeda, Toru Hashimura, Taiki Yamakawa
  • Patent number: 11945056
    Abstract: A gas shielded arc welding wire contains, based on total mass of the wire in terms of mass %: C: 0.01% to 0.50%; Si: 0.01% to 1.50%; Mn: 0.10% to 2.50%; Cr: 5% to 15%; Ni: 0.05% to 1.50%; Mo: 0.1% to 2.0%; V: 0.1% to 1.0%; Nb: 0.01% to 0.20%; REM: 0.001% to 0.050%; S: 0.0010% to 0.0200%; and O: 0.025% or less (including 0%), which satisfies the following relationship: 3.0?(Nb+10√óREM)/(S+O)?200.0.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 2, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuya Ikai, Tetsunao Ikeda
  • Patent number: 11944944
    Abstract: A mixing apparatus includes a mixer configured to mix a material including a rubber or a resin in the presence of a working fluid that is in a supercritical state or a subcritical state. The mixer includes a chamber that forms a flow passage for the working fluid and the material, and a mixing blade disposed in the chamber and fixed to the chamber.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 2, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Kosuke Higashi, Kazuhisa Fukutani
  • Publication number: 20240102798
    Abstract: A deformation prediction method for an additively manufactured object includes steps of dividing a shape of the additively manufactured object into a plurality of blocks, calculating deformation amount and deformation direction of each block before and after forming a weld bead by parallel processing of a plurality of threads based on the inherent strain method, setting at least one block group composed of blocks to be joined together among the plurality of blocks, and calculating deformation of an entirety of the block group by adding the deformation amount of each block composing the block group according to the deformation direction of the block.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 28, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Shuo HUANG
  • Publication number: 20240100919
    Abstract: A door beam includes an outer flange, an inner flange, and a pair of webs connecting the outer flange and the inner flange. The outer flange, the inner flange, and the pair of webs define a closed cross-sectional portion. The outer flange includes an outer central portion constituting the closed cross-sectional portion, and outer protruding portions protruding outward from the closed cross-sectional portion. The inner flange is formed with an attachment press working portion having been subjected to press working so as to serve as an attachment portion with respect to the inner panel at both end portions in the longitudinal direction. The outer protruding portion is formed with a mastic press working portion having been subjected to press working so as to serve as an attachment portion with respect to the outer panel.
    Type: Application
    Filed: November 4, 2020
    Publication date: March 28, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Hideki ISHITOBI, Narikazu HASHIMOTO
  • Publication number: 20240091885
    Abstract: A shape sensor is provided for acquiring a shape profile along an extension direction of an existing weld bead, and a control unit includes a welding information acquisition unit for acquiring welding information during formation of an adjacent weld bead when forming the adjacent weld bead at a position adjacent to the existing weld bead, and a defect candidate extraction unit for determining an angle characteristic portion having a base angle equal to or greater than a threshold in the existing weld bead based on the shape profile, determining a welding characteristic portion of the welding information based on the welding information, and extracting the welding characteristic portion corresponding to the angle characteristic portion as a defect candidate by associating the welding characteristic portion with the angle characteristic portion.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 21, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Yasuto KATAOKA, Eiichi TAMURA, Akinori YOSHIKAWA, Shuo HUANG, Shinji SATO
  • Patent number: 11931830
    Abstract: A control method for gas-shielded arc welding includes providing a normal arc period in which the welding current is maintained at a setting current Icc set in advance, and providing a separation control period after the separation timing of the molten droplet is detected in the normal arc period, the separation control period including a current decreasing section, a current maintaining section, and a current increasing section. In the separation control period, at least one of the following controls for preventing a short circuit is performed: control of an output voltage, control of a feeding speed, and control of a gas ratio.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 19, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Baini Jo, Shogo Nakatsukasa, Akira Ogawa, Eiji Sato
  • Patent number: 11931709
    Abstract: The present invention relates to a mixing apparatus. A production unit produces a working fluid that is in a supercritical state or a subcritical state. A storage unit stores a material. A dissolving unit dissolves the material in the working fluid. A mixer mixes the material together in the presence of the working fluid. A material feed valve opens or closes a flow passage through which the material is to pass to be fed from the storage unit into the dissolving unit. A working fluid inflow valve opens or closes a flow passage through which the working fluid is to pass to flow into the dissolving unit from the production unit. A mixer inflow valve opens or closes a flow passage through which the working fluid and the material are to pass to flow into the mixer from the dissolving unit.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: March 19, 2024
    Assignee: KOBE STEEL, LTD.
    Inventors: Kosuke Higashi, Kazuhisa Fukutani
  • Publication number: 20240083103
    Abstract: A fiber-reinforced resin strand used as a manufacturing material for a 3D printer, the fiber-reinforced resin strand containing: a base material containing a thermoplastic resin; and at least one fiber or fiber bundle disposed in the base material and extending in a strand-axial direction. Twisting is applied to the fiber or the fiber bundle along the strand-axial direction, and the number of times of the twisting per 1 m in length of the fiber-reinforced resin strand in the strand-axial direction is 30 or more and 80 or less.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 14, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Taka ANDO, Makoto TAKENAKA
  • Publication number: 20240083024
    Abstract: A spring constant correction device and method measure a position and attitude of a distal end of an articulated robot when the articulated robot is operated in a state where elastic deformation is compensated, compare measurement values of the position and attitude of the distal end and target values of the position and attitude, and correct a spring constant based on a result of the comparison. In case of the correction, the spring constant is corrected at a predetermined position based on at least three of: an angle of an end point attitude based on the measured attitude; a torque of the distal end in the end point attitude; an angle of the distal end in a target attitude; and a torque of the distal end in the target attitude. A program of such a method is recorded in a recording medium.
    Type: Application
    Filed: January 13, 2022
    Publication date: March 14, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takashi YAMADA, Yoshiharu NISHIDA, Yoshihisa TAMASE, Naoki KIDA, Kenichiro KANAO
  • Patent number: 11913088
    Abstract: The present invention provides a high-strength steel sheet, which can be used in various applications including automobile parts and exhibits excellent collision safety and excellent moldability, and a method for manufacturing the high-strength steel sheet. The high-strength steel sheet according to an aspect of the present invention satisfies a predetermined chemical composition and has a metallographic microstructure having ferrite fraction: 0% to 10%, MA fraction: 0% to 30%, hard phase other than ferrite and MA: 70% to 100% in terms of area proportion and retained austenite fraction: 5% to 30% in terms of volume proportion, and in the high-strength steel sheet, the skewness of IQ as analyzed by the EBRD method is ?1.2 to ?0.3 when the skewness is expressed by a predetermined relational expression in a case where crystal grains having a bcc structure and a bct structure are regarded as an aggregation of regions having an area of 0.05 ?m2.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: February 27, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Tadao Murata, Muneaki Ikeda, Toshio Murakami
  • Publication number: 20240051052
    Abstract: In a building step, a base measurement processing of acquiring a measured height by measuring, using a shape sensor, a height of a base at a position where a torch is to be moved when depositing weld beads; a welding condition setting processing of obtaining a planned height of the base at the position where the torch is to be moved from a deposition plan, comparing the measured height acquired in the base measurement processing and the planned height to obtain a differential height, and setting a welding condition in a feedback correction for reducing the differential height; and a correction ratio update processing of performing a selection from a plurality of correction ratios set in advance and updating a correction ratio in the welding condition based on a selected correction ratio are executed.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 15, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Akinori YOSHIKAWA
  • Patent number: 11897230
    Abstract: The present invention relates to a surface-treated metal sheet for polyolefin resin bonding having a metal substrate and an adhesive layer laminated on at least one surface of the metal substrate with a chemical conversion coating film interposed between the metal substrate and the adhesive layer. This surface-treated metal sheet for polyolefin resin bonding is characterized in that a coating liquid for forming the chemical conversion coating film contains an acid-modified polyolefin resin, a colloidal silica, and a silane coupling agent; a coating amount of the chemical conversion coating film is 0.05 to 3 g/m2 in terms of dry mass; the adhesive layer contains an acid-modified polyolefin resin; and the adhesive layer has a thickness of 5 to 100 ?m.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 13, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Yasuo Hirano, Takeshi Watase, Tetsuya Yamamoto
  • Publication number: 20240044759
    Abstract: A method for checking quality of a heat exchanger includes the steps of: performing a liquid pressure test for the heat exchanger including a first flow path and a second flow path adjacent to the first flow path by filling the first flow path and the second flow path with a liquid in a pressurized state; discharging the liquid from the first flow path and the second flow path; and promoting evaporation of the liquid remaining in the first flow path and the second flow path by reducing pressure inside each of the first flow path and the second flow path using a vacuum pump. The step of promoting evaporation of the liquid is performed to feed heated gas into the first flow path and the second flow path.
    Type: Application
    Filed: July 19, 2023
    Publication date: February 8, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroaki KANAZAWA, Kentaro TANAKA, Hideki TAKAFUJI, Tadashi IKEUCHI
  • Publication number: 20240043978
    Abstract: A TiAl alloy may be suitable for forging and may be used to produce a TiAl alloy material having excellent oxidation resistance, high-temperature creep strength, excellent hot forgeability, and can be subjected to die forging. The TiAl alloy may contain, in atomic percentage: Ti; Al in a range of from 42.0 to 43.6%; Cu in a range of from 0.5 to 2.0%; and Nb in a range of from 3.0 to 7.0%; and unavoidable impurities.
    Type: Application
    Filed: March 14, 2022
    Publication date: February 8, 2024
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Takeo MIYAMURA, Masao TAKEYAMA, Hirotoyo NAKASHIMA
  • Publication number: 20240025089
    Abstract: A method for manufacturing a metal-resin composite includes preparing a mold including a first mold forming a housing portion and a second mold movable with respect to the first mold, housing an extruded material in the housing portion, arranging resin material on the first mold, moving the second mold to form a cavity defined by the extruded material and the mold, and filling the cavity with the resin material. In the filling, a protrusion of the extruded material is brought into close contact with the housing portion or its peripheral edge by molding pressure applied from the mold to the extruded material, and the cavity is disconnected from a gap between an inner surface of the housing portion and the extruded material.
    Type: Application
    Filed: May 31, 2023
    Publication date: January 25, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kenichi WATANABE, Hiroko KASHIMA, Shu SEKIGUCHI
  • Publication number: 20240017770
    Abstract: A side sill reinforcement structure includes a battery unit for drive, a side sill extending in a vehicle front-rear direction on an outer side in a vehicle width direction of the battery unit, and a reinforcing member that connects the battery unit and the side sill. The reinforcing member includes a closed cross-sectional portion group having a first closed cross-sectional portion disposed on the innermost side in the vehicle width direction and a second closed cross-sectional portion disposed adjacent to the first closed cross-sectional portion. The first closed cross-sectional portion includes a first upper wall and a first lower wall. The second closed cross-sectional portion includes a second upper wall and a second lower wall. The thickness of the first upper wall is larger than the thickness of the second upper wall, and the thickness of the first lower wall is larger than the thickness of the second lower wall.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 18, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventor: Masatoshi YOSHIDA
  • Publication number: 20240017339
    Abstract: An additive manufacturing method includes dividing a three-dimensional model shape into a plurality of layers, and dividing each divided layer into a plurality of bead models. A trapezoidal bead model has four vertices. The dividing into the plurality of bead models includes, in the same layer, the bead model for a previously formed weld bead and the bead model for a subsequently formed weld bead that is adjacent to the previously formed weld bead are arranged to have an overlapping portion, and among four vertices of the bead model for the subsequently formed weld bead, selecting as a selected vertex the vertex positioned at an end of the bottom line of the bead model, the end being away from the overlapping portion, and rotating the other three vertices about the selected vertex to change a shape of the trapezoidal bead model.
    Type: Application
    Filed: November 12, 2021
    Publication date: January 18, 2024
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Satoshi CHIKAGUCHI, Shuo HUANG