Austenitic stainless steel sheet for fuel cell separators and production method therefor

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United States of America

PATENT NO 12074348
SERIAL NO

17423897

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Abstract

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An austenitic stainless steel sheet for fuel cell separators comprises a textured structure at a surface of the stainless steel sheet, the textured structure having recessed parts and projected parts, an average height of the projected parts being 30 nm or more and 300 nm or less, and an average interval between the projected parts being 20 nm or more and 350 nm or less, wherein a ratio [Cr]/[Fe] of an atomic concentration of Cr existing in chemical form other than metal to an atomic concentration of Fe existing in chemical form other than metal at the surface of the stainless steel sheet is 1.0 or more.

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  • JFE STEEL CORPORATION

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Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Shin Tokyo, JP 80 311
Yano, Takayoshi Tokyo, JP 31 74

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges579113201 - 1002505007501000125015001750200022502500275030003250350037504000425045004750500052505500575060006250

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