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Steel Sheet
Abstract: Provided is a steel plate characterized by having: a specific chemical composition; an average Vicker's hardness Hs, in a region spanning from at least one surface to 10% of the plate thickness, that is no greater than 0.60 times the average Vicker's hardness Hc at a position of 1/2 the plate thickness; a ratio of macroscopic brittle fracture surface of 35.0% or less as determined by a Charpy impact test at room temperature; and a tensile strength of 1500 MPa or greater.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
26 December 2024
Publication Number
2/2025
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Inventors
1. OHGA, Koyo
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
2. TAKEDA, Kengo
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
3. HIRONAKA, Satoshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008071
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202417103233-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-12-2024(online)].pdf | 2024-12-26 |
| 2 | 202417103233-STATEMENT OF UNDERTAKING (FORM 3) [26-12-2024(online)].pdf | 2024-12-26 |
| 3 | 202417103233-REQUEST FOR EXAMINATION (FORM-18) [26-12-2024(online)].pdf | 2024-12-26 |
| 4 | 202417103233-PROOF OF RIGHT [26-12-2024(online)].pdf | 2024-12-26 |
| 5 | 202417103233-PRIORITY DOCUMENTS [26-12-2024(online)].pdf | 2024-12-26 |
| 6 | 202417103233-POWER OF AUTHORITY [26-12-2024(online)].pdf | 2024-12-26 |
| 7 | 202417103233-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [26-12-2024(online)].pdf | 2024-12-26 |
| 8 | 202417103233-FORM 18 [26-12-2024(online)].pdf | 2024-12-26 |
| 9 | 202417103233-FORM 1 [26-12-2024(online)].pdf | 2024-12-26 |
| 10 | 202417103233-DECLARATION OF INVENTORSHIP (FORM 5) [26-12-2024(online)].pdf | 2024-12-26 |
| 11 | 202417103233-COMPLETE SPECIFICATION [26-12-2024(online)].pdf | 2024-12-26 |
| 12 | 202417103233-MARKED COPIES OF AMENDEMENTS [31-12-2024(online)].pdf | 2024-12-31 |
| 13 | 202417103233-FORM 13 [31-12-2024(online)].pdf | 2024-12-31 |
| 14 | 202417103233-AMMENDED DOCUMENTS [31-12-2024(online)].pdf | 2024-12-31 |
| 15 | 202417103233-FORM 3 [17-04-2025(online)].pdf | 2025-04-17 |