Steel sheet, member, and methods for manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12258647
APP PUB NO 20230349020A1
SERIAL NO

17800669

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A steel sheet according to the present invention has a specific chemical composition and a steel microstructure including, in terms of area fraction, ferrite: 40% or more and 70% or less, a total of bainite and tempered martensite: 5% or more and 30% or less, retained austenite: 4% or more and 18% or less, fresh martensite: 8% or more and 35% or less, and the remainder: 5% or less. Cementite particles are present in the retained austenite, a ratio of an area fraction of the cementite particles in the retained austenite to an area fraction of the retained austenite is 5% or more and 25% or less, and the steel sheet has a tensile strength of 780 MPa or more and less than 980 MPa.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATIONTOKYO 100-0011

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakagaito, Tatsuya Tokyo, JP 80 502
Terashima, Shotaro Tokyo, JP 13 3
Wada, Yusuke Tokyo, JP 35 214
Yang, Lingling Tokyo, JP 26 203
Yokota, Takeshi Tokyo, JP 110 1019

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 25, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 25, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 25, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00