公开(公告)号：US20240120595A1

公开(公告)日：2024-04-11

申请号：US18276317

申请日：2022-02-07

Applicant: NIPPON STEEL CORPORATION

Inventor： Kyohei MIYAKE ,  Atsuo KOGA ,  Kohei UEDA ,  Yutaka MIKAZUKI ,  Katsunari NORITA ,  Sho MATSUI ,  Takashi OKE

IPC: H01M50/24 ,  H01M10/613 ,  H01M10/6568 ,  H01M50/224 ,  H01M50/227 ,  H01M50/231

CPC classification number: H01M50/24 ,  H01M10/613 ,  H01M10/6568 ,  H01M50/224 ,  H01M50/227 ,  H01M50/231

Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path is made of a Zn-based plated steel sheet, an inorganic film or a resin film is formed as a chemical conversion coating film on a surface of the Zn-based plated steel sheet, and the inorganic film contains a Si-based component or a Zr-based component as a main component.

公开(公告)号：US20240154208A1

公开(公告)日：2024-05-09

申请号：US18274995

申请日：2022-02-04

Applicant: NIPPON STEEL CORPORATION

Inventor： Kyohei MIYAKE ,  Atsuo KOGA ,  Kohei UEDA ,  Yutaka MIKAZUKI ,  Katsunari NORITA ,  Sho MATSUI ,  Takashi OKE

IPC: H01M10/6556 ,  B32B15/01 ,  C21D8/02 ,  C21D9/46 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C2/12 ,  C23C2/20 ,  C23C2/28 ,  C23C2/40 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/6568 ,  H01M50/224 ,  H01M50/231 ,  H01M50/24

CPC classification number: H01M10/6556 ,  B32B15/012 ,  C22C21/02 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/6568 ,  H01M50/224 ,  H01M50/231 ,  H01M50/24 ,  C21D8/0226 ,  C21D8/0236 ,  C21D9/46 ,  C23C2/12 ,  C23C2/20 ,  C23C2/28 ,  C23C2/40 ,  H01M2220/20

Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path of the battery pack is made of an Al-based plated steel sheet.

公开(公告)号：US20250018456A1

公开(公告)日：2025-01-16

申请号：US18714431

申请日：2022-12-13

Applicant: NIPPON STEEL CORPORATION

Inventor： Katsunari NORITA ,  Shinnosuke NISHIJIMA

IPC: B21D28/26 ,  B32B15/01

Abstract: A processing apparatus capable of manufacturing a metallic member with improved corrosion resistance at its cut edge surface is provided. A processing apparatus (20) includes a punch (21) and a die (22) to be positioned on one side and the other side of a workpiece constituted by a metal sheet (10), the one and the other sides being arranged in the sheet-thickness direction, each of the punch (21) and the die (22) includes an end face (211), (221) and a side face (212), (222), the punch (21) and the die (22) are positioned such that the end face (211) of the punch (21) and the end face (221) of the die (22) do not overlap in plan view, at least one of the side face (212) of the punch (21) and the side face (222) of the die (22) includes an inclined portion (212a) providing a surface inclined to face the metal sheet (10) and shaped to overlap the other one of the punch (21) and the die (22) in plan view, and the surface provided by the inclined portion (212a) and the sheet-thickness direction form an angle θ not smaller than 15°.

公开(公告)号：US20250108864A1

公开(公告)日：2025-04-03

申请号：US18730568

申请日：2023-02-27

Applicant: NIPPON STEEL CORPORATION

Inventor： Katsunari NORITA ,  Yasunori SAWA ,  Ryuichi NISHIMURA

IPC: B62D25/10 ,  B60R21/34 ,  B62D25/12

Abstract: In an automobile hood, further enhancement of pedestrian protection properties when a pedestrian collides with a rear part of the automobile hood is enabled. An inner panel 2 of an automobile hood 1 includes: a pedestal 7; a plurality of units 9 each including an inclined wall 12 rising from the pedestal 7, and a flange 11; and beads 21 and 22 including at least one of a structure for connecting together outer end portions 55 of the inner panel 2 in a height direction Z perpendicular to a sheet thickness direction of the inner panel 2 and a structure for connecting an outer circumferential portion 73 of the pedestal 7 and the outer end portion 55. A plurality of the beads 21 and 22 are provided, and are arranged on a rear portion 1a side of the inner panel 2.

公开(公告)号：US20240250336A1

公开(公告)日：2024-07-25

申请号：US18289594

申请日：2022-04-15

Applicant: NIPPON STEEL CORPORATION

Inventor： Shinji KODAMA ,  Sho MATSUI ,  Kyohei MIYAKE ,  Yutaka MIKAZUKI ,  Takashi OKE ,  Katsunari NORITA

IPC: H01M10/6556 ,  B21D22/02 ,  B23K1/00 ,  B23K1/005 ,  H01M10/613 ,  H01M10/651

CPC classification number: H01M10/6556 ,  B21D22/02 ,  B23K1/0016 ,  B23K1/0056 ,  H01M10/613 ,  H01M10/651

Abstract: A cooling structure according to an aspect of the present invention includes a press forming member including a groove part and a bank part provided around the groove part, a flow path upper lid positioned on a position covering the groove part of the press forming member, and a joint portion which joins opposing surfaces of the flow path upper lid and the bank part to form a flow path through which a cooling liquid is capable of flowing, in which the press forming member and the flow path upper lid are plated steel sheets having a base steel sheet and having an Al-based plating having a film thickness of 10.0 μm or more or a Zn-based plating having a film thickness of 5.0 μm or more, in which a sheet thickness of the plated steel sheets 0.3 mm to 1.2 mm, the joint portion is formed of a joining metal brazing the base steel sheets of the press forming member and the flow path upper lid, and a partial flow path interval is 20 mm or less and a joining width is 3 mm or more.

公开(公告)号：US20240243386A1

公开(公告)日：2024-07-18

申请号：US18289564

申请日：2022-04-15

Applicant: NIPPON STEEL CORPORATION

Inventor： Sho MATSUI ,  Shinji KODAMA ,  Kyohei MIYAKE ,  Yutaka MIKAZUKI ,  Takashi OKE ,  Katsunari NORITA

IPC: H01M10/6556 ,  H01M10/04 ,  H01M10/613 ,  H01M10/651 ,  H01M10/6568

CPC classification number: H01M10/6556 ,  H01M10/0481 ,  H01M10/651 ,  H01M10/6568 ,  H01M10/613

Abstract: A cooling structure according to an aspect of the present invention includes a press forming member including a groove part and a bank part provided around the groove part, a flow path upper lid which is a flat sheet overlapped at a position covering the groove part of the press forming member and forms a flat cooling surface, and a laser weld which joins opposing surfaces of the flow path upper lid and the bank part to form a flow path through which a cooling liquid is capable of flowing, in which the press forming member and the flow path upper lid are plated steel sheets including a base steel sheet and an Al-based plating, the flow path has a parallel flow path portion in which a plurality of partial flow paths extending along a first direction are arranged in a second direction orthogonal to the first direction, and in the parallel flow path portion, an interval between adjacent partial flow paths is 20 mm or less.