Patents Assigned to Kabushiki Kaisha Kobe Seiko Sho
  • TIRE DYNAMIC LOAD RADIUS CALCULATING DEVICE AND CALCULATING METHOD
    Publication number: 20200408643
    Abstract: A tire dynamic load radius calculating device includes a tire rotation sensor, a drum rotation sensor, a drum rotation angle calculating unit, and a tire dynamic load radius calculating unit. The drum rotation angle calculating unit is configured to calculate a rotation angle of a drum per one rotation of a tire based on signals from the sensors. The tire dynamic load radius calculating unit is configured to calculate a dynamic load radius of the tire based on a formula (R=L/2?), using the rotation angle calculated by the drum rotation angle calculating unit. In this formula, R represents a dynamic load radius of the tire, and L represents a distance traveled by the tire per one rotation of the tire.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 31, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Yuichiro MIZUTA
  • JOINED BODY AND METHOD FOR MANUFACTURING SAME
    Publication number: 20200406333
    Abstract: A joined body includes: a first member having a pipe shape; and a second member including a wall portion having a plate shape, and a flange portion having a cylinder shape provided with an insertion hole through which the first member is inserted. In a state where the first member is inserted into the insertion hole of the flange portion of the second member, the first member and the second member are joined with the first member pipe-expanded. A material of the second member is larger than a material of the first member in a spring-back amount.
    Type: Application
    Filed: November 6, 2018
    Publication date: December 31, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Yasuhiro MAEDA, Kenichi WATANABE, Takayuki KIMURA, Toru HASHIMURA
  • COMPRESSOR
    Publication number: 20200408302
    Abstract: The present invention discloses a compressor configured to compress gas. The compressor includes: a cylinder part; a piston disposed in the cylinder part to form in the cylinder part a compression chamber in which the gas is compressed, the piston being configured to compress the gas in the compression chamber; a first sealing part located adjacent to the compression chamber and attached to an outer circumference of the piston, and formed mainly containing at least one type of component that is selected from a group of polyetheretherketone, polyimide, and polybenzimidazole; and a second sealing part located more separated from the compression chamber than the first sealing part is from the compression chamber and attached to the outer circumference of the piston, the second sealing part having a hardness equal to or smaller than that of the first sealing part.
    Type: Application
    Filed: April 30, 2020
    Publication date: December 31, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Naofumi KANEI, Tomohiro OTSUKA
  • HIGH-STRENGTH STEEL SHEET, HIGH-STRENGTH GALVANIZED STEEL SHEET, METHOD FOR PRODUCING HIGH-STRENGTH STEEL SHEET, AND METHOD FOR PRODUCING HIGH-STRENGTH GALVANIZED STEEL SHEET
    Publication number: 20200407818
    Abstract: The present invention relates to a high-strength steel sheet which satisfies a specific chemical component composition, and which is configured such that: when the metal structure thereof is observed with a scanning electron microscope, polygonal ferrite is 30 to 60% by area; when the metal structure thereof is observed with an optical microscope, MA mixed structure is 21% by area or less; when the metal structure thereof is measured by an X-ray diffraction method, retained austenite is 8% by volume or more; an area ratio of polygonal ferrite having a circle equivalent diameter of 35.0 ?m or more is 0% and an area ratio of polygonal ferrite having a circle equivalent diameter of 10.0 ?m or more and less than 35.0 ?m is 10% or less in the polygonal ferrite; and connectivity as defined by a specific relational expression is 10% or more.
    Type: Application
    Filed: February 6, 2019
    Publication date: December 31, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Muneaki IKEDA, Kenji SAITO
  • COMPRESSED AIR ENERGY STORAGE POWER GENERATION DEVICE
    Publication number: 20200408469
    Abstract: A CAES power generation device includes a plurality of compression/expansion/combined machines, a pressure accumulation unit for storing compressed air, a plurality of heat exchangers, a heat storage unit for storing a heating medium, and a plurality of first containers 10 having a rectangular parallelepiped shape for accommodating the plurality of compression/expansion/combined machines and the plurality of heat exchangers. The plurality of first containers are arranged side by side so that long side surfaces face each other. The long side surface of the first container is provided with at least one vent being an outlet of a pipe for communicating the compression/expansion/combined machine with the outside of the container.
    Type: Application
    Filed: January 18, 2019
    Publication date: December 31, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Masaki MATSUKUMA, Hiroki SARUTA, Yuji MATSUO
  • MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR JOINT BODY
    Publication number: 20200398376
    Abstract: Provided is a manufacturing method for a joint body having a blank material plated with a metal material and a hoop material plated with a metal material joined together by placing the hoop material on the blank material and causing a laser oscillation system to irradiate a surface of the hoop material with laser light to form a joint portion including a line-shaped welded portion where the blank material and the hoop material are joined together. In this manufacturing method, the hoop material is supplied to be placed on the blank material and form a predetermined gap d between the blank material and the hoop material, and the hoop material is irradiated with a laser at a position where the predetermined gap d is located between the blank material and the hoop material to join the blank material and the hoop material together by laser welding.
    Type: Application
    Filed: August 1, 2018
    Publication date: December 24, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kenichi WATANABE, Takayuki KIMURA, Liang CHEN, Masao HADANO, Reiichi SUZUKI
  • METHOD AND DEVICE FOR MANUFACTURING SHAPED OBJECTS
    Publication number: 20200391316
    Abstract: A method for producing a built-up object, includes: producing maps beforehand, the maps indicating bead heights BH and bead widths BW corresponding to a base-surface inclination angle ? and a track inclination angle ?, in which the base-surface inclination angle is an angle between a base surface on which the weld beads are to be formed and a vertical direction, and the track inclination angle is an angle between a track direction of the torch and a vertical direction on the base surface; selecting a bead height BH0 and a bead width BW0 from the maps correspondingly to the base-surface inclination angle ? and the track inclination angle ? in forming a weld bead on the base surface; and forming the weld bead based on the selected bead height BH0 and bead width BW0.
    Type: Application
    Filed: November 6, 2018
    Publication date: December 17, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Takemasa YAMASAKI, Shinji SATO, Takeshi YAMADA, Tatsuya FUJII
  • VEHICLE HOOD
    Publication number: 20200391805
    Abstract: A double-lock vehicle hood that can secure flare rigidity, dent resistance, and pedestrian protection performance in a region near the center between a pair of strikers while suppressing an increase in manufacturing cost and weight. The vehicle hood includes an outer panel, an inner panel disposed below the outer panel, and a left striker and a right striker provided on the inner panel and disposed separately in a vehicle lateral direction. The inner panel includes an inner joining part projecting from a bottom toward the outer panel inside an outer joining part. The inner joining part includes a body part disposed behind the left and right strikers and joined to the outer panel, and an extension part extended forward from the body part to be disposed between the left and right strikers and joined to the outer panel.
    Type: Application
    Filed: May 4, 2020
    Publication date: December 17, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroko KASHIMA, Masatoshi YOSHIDA
  • ARC WELDING METHOD FOR DISSIMILAR MATERIAL BONDING
    Publication number: 20200384567
    Abstract: The present invention relates to an arc welding method for dissimilar material joining for joining a first plate made of an aluminum alloy or a magnesium alloy and a second plate made of steel. A steel-made joining assist member has a stepped external shape including a large-diameter portion and a small-diameter portion, has a hollow portion formed to penetrate the large-diameter portion and the small-diameter portion, and has a total height of the large-diameter portion and the small-diameter portion being equal to or larger than a thickness of the first plate. A pressure is applied to the joining assist member to punch the first plate. The hollow portion of the joining assist member is filled with a weld metal. The weld metal is melted until a penetration bead is formed on the second plate, to weld the second plate and the joining assist member together.
    Type: Application
    Filed: January 25, 2019
    Publication date: December 10, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Reiichi SUZUKI
  • VEHICLE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20200377046
    Abstract: A vehicle structure includes a first member that extends in a vehicle width direction, second members that extend in a front-back direction that are inserted in the front-back direction with respect to the first member, and third members that are arranged at end portions of the first member in the vehicle width direction and joined to the end portions.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 3, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Toru HASHIMURA, Taiki YAMAKAWA, Yasuhiro MAEDA, Kenichi WATANABE, Junya NAITO, Akihiko TATSUMI
  • METHOD FOR PRODUCING TI-AL ALLOY
    Publication number: 20200377972
    Abstract: A method includes the production of a primary ingot, the production of a secondary ingot, and the removal of a flux layer. A CaO—CaF2 flux in a content of 3-20 mass % and obtained by mixing 35-95 mass % of CaF2 with CaO is added to a Ti—Al alloy material including a total of at least 0.1 mass % of oxygen and at least 40 mass % of Al, and the resultant substance is melted by a melting method using a water-cooled copper container in an atmosphere having a pressure of 1.33 Pa or higher and held to produce the primary ingot. The primary ingot is continuously drawn downwards while being melted by a melting method using a bottomless water-cooled copper casting mould in an atmosphere having a pressure of 1.33 Pa or higher to produce the secondary ingot. The flux layer deposited on the surface of the secondary ingot is mechanically removed.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 3, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Fumiaki KUDO, Daisuke MATSUWAKA, Hitoshi ISHIDA, Tetsushi DEURA
  • METHOD FOR PRODUCING SHAPED ARTICLE AND SHAPED ARTICLE
    Publication number: 20200376601
    Abstract: A method for manufacturing a built-up object, in which the built-up object includes a plurality of blades provided around a shaft body at circumferential intervals, and concave portions provided between adjacent ones of the blades, each of the concave portions having a curved shape in a section perpendicular to an axial direction, the method includes: a building step of depositing weld beads obtained by melting and solidifying a filler material on a circumferential surface of a base material having a circular shape in a sectional view and having a larger diameter than a bottom portion circle passing through bottom portions of the concave portions, thereby forming built-up portions to serve as the blades; and a cutting step of cutting parts of surfaces of the built-up portions and the circumferential surface of the base material, thereby forming the blades and the concave portions between the blades.
    Type: Application
    Filed: March 8, 2019
    Publication date: December 3, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Shinji SATO, Takeshi YAMADA, Takemasa YAMASAKI
  • MANUFACTURING METHOD FOR JOINT BODY AND MANUFACTURING APPARATUS FOR JOINT BODY
    Publication number: 20200376598
    Abstract: A manufacturing method for a joint body having a first metal member and a second metal member joined together by causing a laser oscillation system to irradiate a surface of the second metal member placed on the first metal member with laser light to form a joint portion including a welded portion where the first metal member and the second metal member are joined together includes continuously supplying the second metal member while pressing the second metal member against the first metal member, the second metal member being a hoop material, and causing the laser oscillation system to emit the laser light.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 3, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kenichi WATANABE, Takayuki KIMURA, Liang CHEN, Masao HADANO, Reiichi SUZUKI
  • ALUMINUM ALLOY DOOR BEAM
    Publication number: 20200369129
    Abstract: A door beam including an aluminum alloy extruded material of a closed section structure having a welded part along the longitudinal direction, webs and an outer flange are inhibited from buckling and further the welded part in the outer flange is inhibited from breaking at the time of collision. In a cross section of an aluminum alloy extruded material perpendicular to the extrusion direction, each of the webs includes an outer part connected to the outer flange and an inner part connected to an inner flange and the thickness of the outer part is larger than the thickness of the inner part. Each of the outer parts is positioned in a region outside a cross section center of the aluminum alloy extruded material in the vehicle body width direction.
    Type: Application
    Filed: April 2, 2020
    Publication date: November 26, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Masatoshi YOSHIDA, Takahiro SHIKAMA
  • SCREW EXTRUDER WITH ROLLERS
    Publication number: 20200368958
    Abstract: A screw extruder with rollers includes a screw which extrudes a material; a casing which houses the screw and which is provided with a charging port for the material; and a pair of an upper roller and a lower roller which are arranged in front of the casing and mold the material extruded by the screw into a sheet, in which one of the upper roller and the lower roller has both end portions in an axial direction, and a main body portion between the both end portions, and a cross-section of the main body portion perpendicular to the axial direction has an oval shape.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 26, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kosuke HIGASHI, Kazuhisa FUKUTANI
  • ONE-SIDE SUBMERGED ARC WELDING METHOD AND ONE-SIDE SUBMERGED ARC WELDING DEVICE
    Publication number: 20200368842
    Abstract: A one-side submerged arc welding method, includes joining two steel plates butted against each other by submerged arc welding from one side using a plurality of electrode. During the submerged arc welding, at least one of electrode distances between adjacent electrodes in an end part region of the steel plates is reduced to be smaller than the at least one of electrode distances in a region in front of the end part region. In reducing the at least one of electrode distances, an increasing section of change rate from when a change of the at least one of electrode distances starts to when the change rate of the at least one of electrode distances reaches its maximum has a time of 2 seconds or more.
    Type: Application
    Filed: January 25, 2019
    Publication date: November 26, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyoshi YOKOTA, Takanobu SUWA, Masaharu KOMURA, Shigeru KIHATA, Daisuke SUGIYAMA
  • METHOD FOR MANUFACTURING VEHICULAR SIDE DOOR, DOOR COMPONENT, AND SIDE DOOR
    Publication number: 20200368802
    Abstract: A method for manufacturing a vehicular side door capable of suppressing occurrence of a residual deformation in a frame of a sash part and a panel member of a door body part in a manufacturing step including a heating step. The method for manufacturing a vehicular side door includes joining each of one end part of a front frame in the vehicle longitudinal direction and one end part of a rear frame to at least one door panel member, heating at least one door panel member, the front frame, and the rear frame joined in the first joining step, and joining the other end part of the front frame and the other end part of the rear frame to each other after the heating step.
    Type: Application
    Filed: March 30, 2020
    Publication date: November 26, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventor: Keisuke AKASAKI
  • METHOD FOR CORRECTING TIRE UNIFORMITY DATA AND TIRE UNIFORMITY MACHINE
    Publication number: 20200355577
    Abstract: A load transfer function of a uniformity measuring apparatus in a second state, in which a tire to be measured is attached, is obtained using at least either a load transfer function or an acceleration transfer function measured in a step of measuring reference transfer functions and a natural frequency measured in a step of measuring a natural frequency. The obtained load transfer function is used to correct tire uniformity data obtained by performing a certain type of signal processing on a tire uniformity waveform.
    Type: Application
    Filed: April 13, 2020
    Publication date: November 12, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Toru OKADA, Keita KANAI
  • ARC SPOT WELDING METHOD
    Publication number: 20200353552
    Abstract: The present invention pertains to: a method for arc spot welding a steel plate having a carbon equivalent CeqBM of 0.35 or more (the carbon equivalent CeqBM is defined in the specification), the method being characterized in that a welding wire containing 98.5 mass % or more of Fe is used, and the ratio between the carbon equivalent CeqWM of a weld metal formed by the method (the carbon equivalent CeqWM of the weld metal is defined in the specification) and the carbon equivalent CeqBM of the steel plate, CeqWM/CeqBM is 0.2-1.0. According to the arc spot welding method, brittle fracture can be prevented and high joint strength can be obtained even when the C content in the steel plate is high.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 12, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takashi YASHIMA, Reiichi SUZUKI, Minoru MIYATA
  • FLUID FLOW-PASSAGE DEVICE
    Publication number: 20200338546
    Abstract: Provided is a fluid flow-passage device in which the flow passage length of each of a plurality of fluid flow-passages can be increased even if the plurality of fluid flow-passages are formed so as to extend in parallel to each other, and in which the inside of each of the plurality of fluid flow-passages can be easily cleaned. In the fluid flow-passage device, a plurality of fluid flow-passages which extend in parallel to each other and through which a fluid is made to flow are disposed. The fluid flow-passage device comprises: a body having a plurality of substrates that are laminated in a prescribed lamination direction; and a plurality of lids, each of which can be attached to and detached from the body.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 29, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Tomohiro OZONO, Yutaka YAGI, Koji NOISHIKI