公开(公告)号：US20230242190A1

公开(公告)日：2023-08-03

申请号：US18013149

申请日：2021-06-30

Applicant: NIPPON STEEL CORPORATION

Inventor： Yasunori SAWA ,  Mai NAGANO ,  Ryuichi NISHIMURA

IPC: B62D29/00

CPC classification number: B62D29/007 ,  C22C38/54

Abstract: There is provided an exterior panel including a steel sheet, the steel sheet including a flat portion, wherein in an outer-layer region of the flat portion, a microstructure contains, in volume fraction, ferrite of 80% or more, an average grain diameter of ferrite is 1.0 to 15.0 μm, an intensity ratio XODF{001}/{111},S of ferrite is 0.30 or more to less than 3.50, when uEl1 denotes a uniform elongation measured with a tensile test specimen cut from the flat portion, and uEl2 denotes a theoretical uniform elongation that is derived from volume fractions, hardnesses, and average grain diameters of ferrite and martensite in a microstructure of an inside region of the flat portion, and a sheet thickness of the flat portion, uEl1/uEl2 is 0.44 to 0.80.

公开(公告)号：US20240166268A1

公开(公告)日：2024-05-23

申请号：US18283073

申请日：2022-06-06

Applicant: NIPPON STEEL CORPORATION

Inventor： Yasunori SAWA ,  Ryuichi NISHIMURA ,  Koichi HAMADA

IPC: B62D25/10 ,  B62D29/00 ,  F16B5/06

CPC classification number: B62D25/10 ,  B62D29/008 ,  F16B5/0621

Abstract: An automobile hood 1 has a first-direction joint row 30 in which a plurality of joints 20 are arranged at an interval from each other in a cross direction X, and a second-direction joint row 40 in which a plurality of the joints 20 are arranged at an interval from each other in a longitudinal direction Y. A curvature 1/R1 in a direction along the first-direction joint row 30 in a region of the outer panel 3 corresponding to the first-direction joint row 30 is smaller than a curvature 1/R2 in a direction along the second-direction joint row 40 in a region of the outer panel 3 corresponding to the second-direction joint row 40. An interval X1 between the joints 20 in the first-direction joint row 30 is greater than an interval Y2 between the joints 20 in the second-direction joint row 40.

公开(公告)号：US20240182121A1

公开(公告)日：2024-06-06

申请号：US18284810

申请日：2022-02-25

Applicant: NIPPON STEEL CORPORATION

Inventor： Yutaka YAKUSHIJIN ,  Ryuichi NISHIMURA ,  Yasunori SAWA

IPC: B62D29/00 ,  B62D25/06 ,  B62D25/10 ,  B62D27/02 ,  F16B5/08

CPC classification number: B62D29/005 ,  B62D25/06 ,  B62D25/10 ,  B62D27/026 ,  F16B5/08

Abstract: A vehicle panel structure has: a sheet-like outer panel member; an inner member disposed to face an inner surface of the outer panel member; and a resin member of which a material is a resin and which is joined to the inner surface of the outer panel member, and at least part of the inner member is buried in the resin member.

公开(公告)号：US20230100272A1

公开(公告)日：2023-03-30

申请号：US17802475

申请日：2021-02-26

Applicant: NIPPON STEEL CORPORATION

Inventor： Kenichiro OTSUKA ,  Toru YONEBAYASHI ,  Satoshi SHIRAKAMI ,  Yasunori SAWA ,  Masafumi AZUMA ,  Ryuichi NISHIMURA

IPC: B62D25/02 ,  B60J5/04 ,  B62D29/00

Abstract: A stiffened panel structure includes a panel-shaped component and a wire. The panel-shaped component has a panel body that curves in such a manner as to be convex outward. The wire has a first end portion and a second end portion. The first end portion is bonded to a first point on the inner surface of the panel body. The second end portion is bonded to a second point on the inner surface of the panel body. The wire is strained between the first point and the second point.

公开(公告)号：US20220126926A1

公开(公告)日：2022-04-28

申请号：US17422129

申请日：2019-12-27

Applicant: NIPPON STEEL CORPORATION

Inventor： Ryuichi NISHIMURA ,  Koichi HAMADA ,  Atsuo KOGA ,  Takeshi KAWACHI ,  Yasunori SAWA ,  Tohru YOSHIDA

IPC: B62D25/12

Abstract: In an automobile inner panel and an automobile panel that includes the automobile inner panel, panel rigidity of the panel is secured while achieving a weight reduction. An automobile inner panel 2 has a plurality of sub-units 10 that each include a flange 11, an inclined wall 12 continuous with the flange 11, and a bottom portion 13 continuous with inclined wall 12 and separated from the flange 11. The bottom portions 13 and 13 of the sub-units 10 and 10 which are adjacent to each other are butted against each other and are directly continuous with each other. A maximum value of a distance D1 between two of the flanges 11 and 11 of two of the sub-units 10 and 10 in which the bottom portions 13 are arranged separated from each other and which are adjacent to each other is 250 mm or less.

公开(公告)号：US20210220897A1

公开(公告)日：2021-07-22

申请号：US16755504

申请日：2017-12-25

Applicant: NIPPON STEEL CORPORATION

Inventor： Yasunori SAWA ,  Masahiro SAITO ,  Shigeru YONEMURA ,  Akira EGAMI ,  Kohki NAKAMURA

IPC: B21D28/26 ,  B21D53/88

Abstract: In a method for producing an outer panel having a character line, a punch includes a projecting portion for forming a bent surface of the character line at a punch top portion, and a punch shoulder R portion. A contact pressure applied to a blank by at least one of the projecting portion and the punch shoulder R portion is higher than a contact pressure applied to the blank by a remaining portion of the punch which excludes the projecting portion and the punch shoulder R portion. A static friction coefficient of a first portion of the punch which includes at least one of the projecting portion and the punch shoulder R portion with respect to the blank is larger than a static friction coefficient of a second portion of the punch which excludes the first portion with respect to the blank.

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：US20240352565A1

公开(公告)日：2024-10-24

申请号：US18579354

申请日：2021-08-27

Applicant: NIPPON STEEL CORPORATION

Inventor： Ryuichi NISHIMURA ,  Yasuhiro ITO ,  Yasunori SAWA ,  Koichi HAMADA ,  Satoshi HIRONAKA

IPC: C22C38/60 ,  B21D28/26 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58

CPC classification number: C22C38/60 ,  B21D28/26 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/021 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58

Abstract: This outer plate component for an automobile includes a steel sheet, and a rolling direction of the steel sheet extends along a vehicle body left-right direction in plan view.

公开(公告)号：US20240190514A1

公开(公告)日：2024-06-13

申请号：US18287945

申请日：2022-06-06

Applicant: NIPPON STEEL CORPORATION

Inventor： Ryuichi NISHIMURA ,  Yasunori SAWA ,  Koichi HAMADA

IPC: B62D25/12 ,  B62D27/02 ,  B62D29/00 ,  F16B5/08

CPC classification number: B62D25/12 ,  B62D27/026 ,  B62D29/007 ,  B62D29/008 ,  F16B5/08

Abstract: An automobile hood 1 has joints 20. The inner panel 2 includes, for example, units 8 and 9 arranged in plurality in an aligned relationship in a cross direction X and arranged in plurality in an aligned relationship in a longitudinal direction Y. The plurality of units 8 and 9 include a plurality of joint-equipped units. In the first form, in some of the joint-equipped units, namely, joint-equipped units 84, 89, and 9, the joints 20 are arranged in an arrangement including a predetermined pattern P1, and in the remaining joint-equipped units 81, 85, 86, 810, 811, and 812, the joints 20 are arranged in an arrangement including a part of the predetermined pattern P1. In the second form, in each of the joint-equipped units 8 and 9, a plurality of the joints 20 are arranged in an arrangement including the predetermined pattern P1.

公开(公告)号：US20240124068A1

公开(公告)日：2024-04-18

申请号：US18279157

申请日：2022-01-21

Applicant: NIPPON STEEL CORPORATION

Inventor： Yasunori SAWA ,  Ryuichi NISHIMURA

IPC: B62D25/10 ,  B62D25/12

CPC classification number: B62D25/105 ,  B62D25/12

Abstract: An automobile panel 1 has a sheet-shaped outer panel 2 and a sheet-shaped inner panel 3, and an interior member 30 arranged in a space S between the inner panel 3 and the outer panel 2. The interior member 30 is an elongated member that extends in a first direction D1 along the outer panel 2, and includes a first end 41 that is one end in the first direction D1, and a second end 42 that is another end. The first end 41 has a first connecting portion 45 which is connected to the inner panel 3. The interior member 30 has a second connecting portion 46 that is connected to the outer panel 2, at a position that is separated from the first end 41 along the first direction D1.