Sn-plated steel sheet and method for manufacturing Sn-plated steel sheet

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United States of America Patent

PATENT NO 11021806
APP PUB NO 20200040479A1
SERIAL NO

16603496

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A Sn-plated steel sheet according to the present invention includes a steel sheet, a Sn-plated layer that is provided on at least one surface of the steel sheet, and a film that is provided on a surface of the Sn-plated layer and includes zirconium oxide and tin oxide, in which an amount of the zirconium oxide in the film is 0.2 mg/m2 to 50 mg/m2 in terms of metal Zr amount, in a depth direction analysis by X-ray photoelectron spectroscopy, a depth position A at which an element concentration of Zr present as the zirconium oxide is maximum is positioned closer to a surface of the film than a depth position B at which an element concentration of Sn present as the tin oxide is maximum, and a distance between the depth position A and the depth position B in a depth direction is 0.5 nm or more.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONCHIYODA-KU TOKYO 100-8071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirano, Shigeru Tokyo, JP 68 276
Noda, Masakazu Tokyo, JP 6 39
Sato, Yasuhiko Tokyo, JP 51 955
Yamanaka, Shintaro Tokyo, JP 33 175

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