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Cold Rolled Steel Sheet And Manufacturing Method Therefor
Abstract: The present invention relates to a cold-rolled steel sheet and a manufacturing method therefor and, more specifically, to a cold-rolled steel sheet that is preferably applicable to collision energy absorption members such as a body-in-white (BIW) structural element, and a manufacturing method for the cold-rolled steel sheet. One aspect of the present invention is to provide a cold-rolled steel sheet with excellent strength, excellent elongation, and excellent hole expansion properties, and a manufacturing method therefor.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
28 May 2025
Publication Number
28/2025
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
POSCO CO., LTD
6261, Donghaean-ro, Nam-gu,
Pohang-si,
Gyeongsangbuk-do 37859
Inventors
1. KIM, Sang-Hyun
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
2. IM, Young-Roc
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
3. SEO, Chang-Hyo
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
4. JUNG, Ki-Taek
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517051359-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [28-05-2025(online)].pdf | 2025-05-28 |
| 2 | 202517051359-STATEMENT OF UNDERTAKING (FORM 3) [28-05-2025(online)].pdf | 2025-05-28 |
| 3 | 202517051359-REQUEST FOR EXAMINATION (FORM-18) [28-05-2025(online)].pdf | 2025-05-28 |
| 4 | 202517051359-PROOF OF RIGHT [28-05-2025(online)].pdf | 2025-05-28 |
| 5 | 202517051359-PRIORITY DOCUMENTS [28-05-2025(online)].pdf | 2025-05-28 |
| 6 | 202517051359-POWER OF AUTHORITY [28-05-2025(online)].pdf | 2025-05-28 |
| 7 | 202517051359-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [28-05-2025(online)].pdf | 2025-05-28 |
| 8 | 202517051359-FORM 18 [28-05-2025(online)].pdf | 2025-05-28 |
| 9 | 202517051359-FORM 1 [28-05-2025(online)].pdf | 2025-05-28 |
| 10 | 202517051359-FIGURE OF ABSTRACT [28-05-2025(online)].pdf | 2025-05-28 |
| 11 | 202517051359-DRAWINGS [28-05-2025(online)].pdf | 2025-05-28 |
| 12 | 202517051359-DECLARATION OF INVENTORSHIP (FORM 5) [28-05-2025(online)].pdf | 2025-05-28 |
| 13 | 202517051359-COMPLETE SPECIFICATION [28-05-2025(online)].pdf | 2025-05-28 |
| 14 | 202517051359-FORM-26 [21-08-2025(online)].pdf | 2025-08-21 |
| 15 | 202517051359-Others-260825.pdf | 2025-08-27 |
| 16 | 202517051359-GPA-260825.pdf | 2025-08-27 |
| 17 | 202517051359-Correspondence-260825.pdf | 2025-08-27 |
| 18 | 202517051359-FORM 3 [13-11-2025(online)].pdf | 2025-11-13 |