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Hot Stamp Molded Body

Abstract: Provided is a hot-stamp molded body characterized by comprising a steel base material and a plating layer disposed on a surface of the steel base material, wherein: the plating layer has a prescribed chemical composition; the average C concentration from the surface of the steel base material to 1 µm in the depth direction is 0.25 mass% or less; the steel base material contains 90% or more of martensite in terms of area ratio; the adhesion amount of the plating layer is 60 g/m2 or more per one surface; and the hot-stamp molded body has a Vickers hardness is 400 HV or more.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
27 May 2025
Publication Number
24/2025
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. HAYASHIDA, Shota
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. MITSUNOBU, Takuya
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. TAKEBAYASHI, Hiroshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202517050848-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [27-05-2025(online)].pdf 2025-05-27
2 202517050848-STATEMENT OF UNDERTAKING (FORM 3) [27-05-2025(online)].pdf 2025-05-27
3 202517050848-REQUEST FOR EXAMINATION (FORM-18) [27-05-2025(online)].pdf 2025-05-27
4 202517050848-PROOF OF RIGHT [27-05-2025(online)].pdf 2025-05-27
5 202517050848-PRIORITY DOCUMENTS [27-05-2025(online)].pdf 2025-05-27
6 202517050848-POWER OF AUTHORITY [27-05-2025(online)].pdf 2025-05-27
7 202517050848-FORM 18 [27-05-2025(online)].pdf 2025-05-27
8 202517050848-FORM 1 [27-05-2025(online)].pdf 2025-05-27
9 202517050848-DRAWINGS [27-05-2025(online)].pdf 2025-05-27
10 202517050848-DECLARATION OF INVENTORSHIP (FORM 5) [27-05-2025(online)].pdf 2025-05-27
11 202517050848-COMPLETE SPECIFICATION [27-05-2025(online)].pdf 2025-05-27
12 202517050848-FORM 3 [25-09-2025(online)].pdf 2025-09-25