Grain-oriented electrical steel sheet and method of producing same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11923116
SERIAL NO

17298672

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Abstract

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Disclosed is a grain-oriented electrical steel sheet with extremely low iron loss by means of a magnetic domain refining technique. In a grain-oriented electrical steel sheet having a plurality of magnetic domains refined via a local strain introduction portion, when a direct-current external magnetic field is applied to the steel sheet in a rolling direction, for a magnetic flux leaked from the local strain introduction portion at a position 1.0 mm away from a surface of the steel sheet at a side of the local strain introduction portion, a value obtained by dividing an intensity level of a total leakage magnetic flux by an intensity level of a magnetic flux leaked due to causes other than strain is more than 1.2.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 1000011 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichihara, Yoshihisa Tokyo, JP 19 2
Koshihara, Takahiro Tokyo, JP 8 30
Omura, Takeshi Tokyo, JP 65 449
Senda, Kunihiro Tokyo, JP 56 239

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