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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12410502 B1

PDFFull Text
Date of Patent:
Sep. 09, 2025

Filed:

Dec. 15, 2021

Steel sheet and production method therefor

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Takuya Hirashima, Tokyo, JP;

Tatsuya Nakagaito, Tokyo, JP;

Masaki Koba, Tokyo, JP;

Kyoko Naito, Tokyo, JP;

Seisuke Tsuda, Tokyo, JP;

Katsuya Hata, Tokyo, JP;

Shotaro Terashima, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

KENJA IP LAW PC

Primary Examiner:

Adam Krupicka

Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 1/18 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/26 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01); C23C 2/02 (2006.01);
U.S. Cl.
CPC ...
C23C 2/024 (2022.08); C21D 1/18 (2013.01); C21D 6/001 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 8/0278 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/26 (2013.01); C22C 38/38 (2013.01); C22C 38/60 (2013.01); C23C 2/02 (2013.01); C23C 2/0224 (2022.08); C21D 2211/001 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract

Provided is a steel sheet having excellent workability while ensuring excellent strength. The steel sheet comprises: a predetermined chemical composition; and a steel microstructure that contains ferrite: 45% to 90%, martensite: 5% to 30%, bainite: 1% to 25%, and retained austenite: 3% or more and in which [Mn]/[Mn] is 1.00 to 1.15 and [Mn]/[Mn]is 1.00 to 1.30, wherein TS×El is 16000 MPa·% or more.

Find Patent Forward Citations

Hirashima, Takuya. (2025). Steel sheet and production method therefor (U.S. Patent No. 12410502). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12410502

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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