GRAIN-ORIENTED ELECTRICAL STEEL SHEET

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United States of America Patent

SERIAL NO

15560454

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Abstract

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Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. An average depth D of the groove is greater than 10 μm and equal to or less than 40 μm in a case where the groove is seen on a groove-width-direction cross-section that is perpendicular to a groove extension direction, when a center of the groove in the groove width direction is defined as a groove width center, a deepest portion of the groove deviates from the groove width center toward one side in the groove width direction, and a cross-sectional shape of the groove is asymmetric with respect to the groove width center as a reference in the groove width direction.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATION6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-8071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HAMAMURA, Hideyuki Futtsu-shi, JP 23 56
MOGI, Hisashi Yachiyo-shi, JP 19 52
SAKAI, Tatsuhiko Oita-shi, JP 92 647
TAKAHASHI, Fumiaki Kisarazu-shi, JP 55 1371

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