Grain oriented electrical steel sheet, method for manufacturing grain oriented electrical steel sheets, method for evaluating grain oriented electrical steel sheets, and iron core

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United States of America Patent

PATENT NO 10889875
APP PUB NO 20190292623A1
SERIAL NO

16432274

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Abstract

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A grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet, wherein a total area percentage of defective parts scattered on the forsterite film is less than 1.5% relative to a surface area of the forsterite film when viewed from above the surface, and methods for evaluating a grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet.

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Patent Owner(s)

  • JFE STEEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsushima, Tomohiro Chiba, JP 39 767
Nagoshi, Masayasu Kawasaki, JP 32 96
Takajo, Shigehiro Los Alamos, US 43 114
Takamiya, Toshito Kurashiki, JP 57 198
Terashima, Takashi Kurashiki, JP 70 173
Uesaka, Masanori Kurashiki, JP 32 65
Watanabe, Makoto Kurashiki, JP 376 3281

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