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Ultra High Strength Steel Sheet Having Excellent Hole Expansion Ratio, And Method For Manufacturing Same
Abstract: The present invention pertains to a steel sheet used in automobiles etc. and, more specifically, to an ultra-high strength steel sheet having an excellent hole expansion ratio, and a method for manufacturing same.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
23 May 2025
Publication Number
24/2025
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. HAN, Sang-Ho
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
2. KONG, Jong-Pan
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
3. KIM, Eun-Young
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
4. BANG, Chan-Woo
20-26, Pokposarang-gil
Gwangyang-si,
Jeollanam-do 57807
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517049899-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [23-05-2025(online)].pdf | 2025-05-23 |
| 2 | 202517049899-STATEMENT OF UNDERTAKING (FORM 3) [23-05-2025(online)].pdf | 2025-05-23 |
| 3 | 202517049899-REQUEST FOR EXAMINATION (FORM-18) [23-05-2025(online)].pdf | 2025-05-23 |
| 4 | 202517049899-PROOF OF RIGHT [23-05-2025(online)].pdf | 2025-05-23 |
| 5 | 202517049899-PRIORITY DOCUMENTS [23-05-2025(online)].pdf | 2025-05-23 |
| 6 | 202517049899-POWER OF AUTHORITY [23-05-2025(online)].pdf | 2025-05-23 |
| 7 | 202517049899-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [23-05-2025(online)].pdf | 2025-05-23 |
| 8 | 202517049899-FORM 18 [23-05-2025(online)].pdf | 2025-05-23 |
| 9 | 202517049899-FORM 1 [23-05-2025(online)].pdf | 2025-05-23 |
| 10 | 202517049899-FIGURE OF ABSTRACT [23-05-2025(online)].pdf | 2025-05-23 |
| 11 | 202517049899-DECLARATION OF INVENTORSHIP (FORM 5) [23-05-2025(online)].pdf | 2025-05-23 |
| 12 | 202517049899-COMPLETE SPECIFICATION [23-05-2025(online)].pdf | 2025-05-23 |
| 13 | 202517049899-FORM-26 [21-08-2025(online)].pdf | 2025-08-21 |
| 14 | 202517049899-Others-220825.pdf | 2025-08-25 |
| 15 | 202517049899-GPA-220825.pdf | 2025-08-25 |
| 16 | 202517049899-Correspondence-220825.pdf | 2025-08-25 |
| 17 | 202517049899-FORM 3 [31-10-2025(online)].pdf | 2025-10-31 |