公开(公告)号：US12217594B2

公开(公告)日：2025-02-04

申请号：US18268171

申请日：2021-09-01

Applicant: POSCO Co., Ltd

Inventor： Cheol-hee Choi ,  Kisoo Kim ,  Dukman Lee

IPC: G08B21/14 ,  G01N1/22 ,  G08B5/22 ,  G08B7/06

Abstract: A gas detection device is disclosed. A gas detection device according to an embodiment of the present invention includes a case in which a plurality of grooves are formed in a circumferential surface, an inlet which is coupled to a first groove among the grooves and through which air is introduced into the case, a power button which is coupled to a second groove among the grooves and turns a power source on or off, a gas detector which is provided in the case and detects a gas contained in the introduced air, a light unit which is coupled to a third groove among the grooves and informs a state in which the power source is turned on or off and whether the gas is detected, a battery which supplies power, a beep generator which generates a beep when a gas detection signal is received from the gas detector, and a power switch operated by the power button to turn on or off so as to supply the power from the battery, wherein one or more of the inlet, the power button, and the light unit are coupled to the grooves in a recessed form, the battery, the beep generator, and the power switch are provided inside the case, and the case is formed in a small spherical shape which is carried in a palm of an operator and moved by the operator.

公开(公告)号：US20250030100A1

公开(公告)日：2025-01-23

申请号：US18716682

申请日：2022-12-15

Applicant: POSCO CO., LTD

Inventor： Hong-Woo Lee ,  Hwi-Geon Kim

IPC: H01M50/242 ,  H01M10/613 ,  H01M10/6554 ,  H01M50/209 ,  H01M50/258

Abstract: The present invention provides a battery case comprising: a side frame; longitudinal members which are arranged in the side frame and extend in the longitudinal direction; width-direction members which are arranged in the side frame and extend in the width-direction so as to be connected crosswise with the longitudinal members, and which each include a first lower width-direction unit and a second lower width-direction unit that are arranged overlapping in the height direction; and a cooling panel which is arranged above the first lower width-direction units and cools a battery module.

公开(公告)号：US20250018839A1

公开(公告)日：2025-01-16

申请号：US18711802

申请日：2022-11-30

Applicant: POSCO CO., LTD

Inventor： Jaehyun Kim

IPC: B60N2/16 ,  B60N2/02 ,  B60N2/07 ,  B60N2/14 ,  B60N2/68

Abstract: The present invention provides a seat frame comprising: a cushion part for supporting a cushion; a height-adjusting part which is provided below the cushion part, and which adjusts the height of the cushion part by means of a plurality of rotary links; a rotating part which is provided below the height-adjusting part, and which rotates the height-adjusting part and the cushion part; and reinforcing bracket parts which are coupled to the lower side of the rotating part so as to reinforce the rotating part, and which are provided over a pair of rails of a rail part arranged below same so as to be spaced apart.

公开(公告)号：US20250011912A1

公开(公告)日：2025-01-09

申请号：US18830214

申请日：2024-09-10

Applicant: POSCO CO., LTD

Inventor： Jin-Keun Oh ,  Seong-Woo Kim ,  Yeol-Rae Cho ,  Sang-Heon Kim

IPC: C23C2/12 ,  B32B15/01 ,  C21D9/48 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C23C2/28 ,  C23C2/40

Abstract: The present invention provides an aluminum-based plated steel plate used in hot-press forming, the steel plate comprising: a base steel plate; and a plating layer formed on the base steel plate, wherein the plating layer comprises: an alloying layer formed on the surface of the base steel plate and including one or more of Fe3Al, FeAl(Si), Fe2Al5, and FeAl3; and an aluminum layer formed on the alloying layer and having a thickness less than 10% of the thickness of the plating layer, and the plating layer has a thickness of 5-20 μm and an oxygen content of 10 weight % or less, as measured by GDS, at a depth of 0.1 μm from the surface of the plating layer.

公开(公告)号：US20250011889A1

公开(公告)日：2025-01-09

申请号：US18711777

申请日：2022-11-29

Applicant: POSCO CO., LTD

Inventor： Eun-Young Kim ,  Min-Seo Koo

IPC: C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

Abstract: The present invention relates to an ultra-high strength cold-rolled steel sheet and a manufacturing method thereof and, more specifically, to a cold-rolled steel sheet and a manufacturing method thereof, wherein the cold-rolled steel sheet has a tensile strength of 1.5 GPa and exhibits an excellent elongation rate, and as such, can be suitably used for cold stamping.

公开(公告)号：US20240392407A1

公开(公告)日：2024-11-28

申请号：US18694598

申请日：2022-09-20

Applicant: POSCO CO., LTD

Inventor： Sung-Il KIM ,  Joo-Hyun RYU ,  Chang-Hyo SEO

IPC: C21D9/46 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/32 ,  C22C38/38

Abstract: The present invention relates to: a high-strength cold-rolled steel sheet having excellent quality and low mechanical property deviation; and a manufacturing method therefor. More particularly, the present invention relates to: a high-strength cold-rolled steel sheet that can be suitably used for automotive parts by ensuring high strength and elongation with little surface defects and low mechanical property deviation; and a manufacturing method therefor.

公开(公告)号：US20240344185A1

公开(公告)日：2024-10-17

申请号：US18293850

申请日：2022-07-13

Applicant: POSCO CO., LTD

Inventor： Kwanho KIM ,  Seokhawan CHOI ,  Myungsoo CHOI ,  Youngsoo CHUN

IPC: C22C38/34 ,  B21C1/02 ,  C21D1/18 ,  C21D8/02 ,  C21D9/00 ,  C21D9/52 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26

CPC classification number: C22C38/34 ,  B21C1/02 ,  C21D1/18 ,  C21D8/0205 ,  C21D8/0226 ,  C21D9/0081 ,  C21D9/525 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C21D2211/001

Abstract: Disclosed in the present specification are steel and a steel wire, which are for a spring, and manufacturing methods therefor, the steel and the steel wire having excellent resistance to permanent deformation by having increased in-material dislocation density or reduced average grain diameter. The steel wire for a spring, having excellent resistance to permanent deformation, according to one embodiment of the present invention, comprises, by wt %, 0.4-0.7% of C, 1.2-2.3% of Si, 0.2-0.8% of Mn, 0.2-0.8% of Cr, and the balance of Fe (iron) and other inevitable impurities, wherein the dislocation density thereof can be 1.16×1015/m2 or more, and the average grain diameter thereof can be 8.4 μm or less.

公开(公告)号：US20240326916A1

公开(公告)日：2024-10-03

申请号：US18574624

申请日：2022-06-22

Applicant: POSCO CO., LTD

Inventor： Gyu-Min Lee

IPC: B62D21/15 ,  B62D25/02 ,  B62D27/02

CPC classification number: B62D21/157 ,  B62D25/025 ,  B62D27/023 ,  B62D27/026

Abstract: A side sill for a vehicle according to one embodiment of the present disclosure comprises: a side sill frame formed to have a hollow portion; a first reinforcing frame disposed in the hollow portion and attached to the side sill; a second reinforcing frame disposed in the hollow portion and attached to the first reinforcing frame and the side sill frame, wherein the first reinforcing frame and the second reinforcing frame are disposed in the hollow portion so as to form a closed cross-section in the hollow portion from a thickness-wise cross-section of the side sill frame.

公开(公告)号：US20240308179A1

公开(公告)日：2024-09-19

申请号：US18268576

申请日：2021-12-20

Applicant: POSCO Co., Ltd

Inventor： Jong-Tae Park ,  Jungwoo Kim ,  Bongwoo Ha ,  Donggyu Lee

IPC: B32B7/12 ,  B32B15/04 ,  B32B15/18 ,  B32B37/12

CPC classification number: B32B7/12 ,  B32B15/043 ,  B32B15/18 ,  B32B37/1284 ,  B32B2255/06 ,  B32B2255/20 ,  B32B2255/26 ,  B32B2264/102 ,  B32B2307/54 ,  B32B2307/542 ,  B32B2307/748 ,  B32B2309/02 ,  B32B2311/30

Abstract: The present invention relates to a self-bonding electrical steel sheet and a laminate comprising same, the self-bonding electrical steel sheet comprising an electrical steel sheet and a self-bonding layer positioned on the electrical steel sheet, wherein the amount of inorganic material in the self-bonding layer is 5-35 wt % and the tensile/shear strength of the laminate is 7.5-20 N/mm2.

公开(公告)号：US20240296981A1

公开(公告)日：2024-09-05

申请号：US18268784

申请日：2021-12-16

Applicant: POSCO Co., Ltd

Inventor： Jaewan Hong ,  Hyungdon Joo ,  Junesoo Park

IPC: H01F1/147 ,  C21D6/00 ,  C21D8/12 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14

CPC classification number: H01F1/14791 ,  C21D6/005 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C21D2211/005 ,  C22C2202/02

Abstract: A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention contains, by wt %, 0.005% or less (excluding 0%) of C, 1.2 to 2.7% of Si, 0.4 to 2.0% of Mn, 0.005% or less (excluding 0%) of S, 0.3% or less (excluding 0%) of Al, 0.005% or less (excluding 0%) of N, 0.005% or less (excluding 0%) of Ti, and a balance of Fe and inevitable impurities, wherein the non-oriented electrical steel sheet satisfies the following Expression 1, and a volume fraction of grains having an angle of 15° or less between a {112} plane and a rolling plane in the steel sheet is 40 to 60%.







0.3
≤


(


[
Si
]

+

[
Al
]

-

1
.
5


)

/

[
Mn
]


≤


0
.
8

⁢
5





[

Expression
⁢

1

]









(In Expression 1, [Si], [Al], and [Mn] represent contents (wt %) of Si, Al, and Mn, respectively.)