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Galvanized Steel Sheet And Member, And Production Methods Therefor
Abstract: The present invention provides a galvanized steel sheet which combines high strength, high YS, excellent ductility, and excellent hole expansion properties. The base steel sheet has a predetermined component composition, steel structure, and amount of diffusible hydrogen. In particular, in the steel structure of the base steel sheet, the number density of the MnS particle group and MC/MQ are properly controlled, and the amount of diffusible hydrogen in the base steel sheet is reduced.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
24 June 2025
Publication Number
27/2025
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
JFE STEEL CORPORATION
2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo
1000011
Inventors
1. HATA Katsuya
c/o Intellectual Property Dept., JFE STEEL CORPORATION, 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo
1000011
2. TERASHIMA Shotaro
c/o Intellectual Property Dept., JFE STEEL CORPORATION, 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo
1000011
3. NAKAGAITO Tatsuya
c/o Intellectual Property Dept., JFE STEEL CORPORATION, 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo
1000011
4. TSUDA Seisuke
c/o Intellectual Property Dept., JFE STEEL CORPORATION, 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo
1000011
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517060184-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [24-06-2025(online)].pdf | 2025-06-24 |
| 2 | 202517060184-STATEMENT OF UNDERTAKING (FORM 3) [24-06-2025(online)].pdf | 2025-06-24 |
| 3 | 202517060184-REQUEST FOR EXAMINATION (FORM-18) [24-06-2025(online)].pdf | 2025-06-24 |
| 4 | 202517060184-PROOF OF RIGHT [24-06-2025(online)].pdf | 2025-06-24 |
| 5 | 202517060184-PRIORITY DOCUMENTS [24-06-2025(online)].pdf | 2025-06-24 |
| 6 | 202517060184-POWER OF AUTHORITY [24-06-2025(online)].pdf | 2025-06-24 |
| 7 | 202517060184-FORM 18 [24-06-2025(online)].pdf | 2025-06-24 |
| 8 | 202517060184-FORM 1 [24-06-2025(online)].pdf | 2025-06-24 |
| 9 | 202517060184-DRAWINGS [24-06-2025(online)].pdf | 2025-06-24 |
| 10 | 202517060184-DECLARATION OF INVENTORSHIP (FORM 5) [24-06-2025(online)].pdf | 2025-06-24 |
| 11 | 202517060184-COMPLETE SPECIFICATION [24-06-2025(online)].pdf | 2025-06-24 |
| 12 | 202517060184-FORM 3 [14-11-2025(online)].pdf | 2025-11-14 |