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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11393612 B1

PDFFull Text
Date of Patent:
Jul. 19, 2022

Filed:

Feb. 26, 2019

Grain-oriented electrical steel sheet

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Hideyuki Hamamura, Tokyo, JP;

Satoshi Arai, Tokyo, JP;

Takashi Kataoka, Tokyo, JP;

Shunsuke Okumura, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Humera N Sheikh

Assistant Examiner:

Katherine A Christy

Int. Cl.
CPC ...
B23K 26/364 (2014.01); H01F 1/147 (2006.01); C21D 3/04 (2006.01); C21D 6/00 (2006.01); C21D 8/00 (2006.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); B23K 101/18 (2006.01); B23K 103/04 (2006.01); B23K 101/38 (2006.01);
U.S. Cl.
CPC ...
H01F 1/147 (2013.01); B23K 26/364 (2015.10); C21D 3/04 (2013.01); C21D 6/008 (2013.01); C21D 8/005 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C21D 8/1283 (2013.01); C21D 9/46 (2013.01); C22C 38/02 (2013.01); B23K 2101/18 (2018.08); B23K 2101/38 (2018.08); B23K 2103/04 (2018.08);
Abstract

A grain-oriented electrical steel sheet according to the present embodiment is a grain-oriented electrical steel sheet having a groove formed on a surface, in which, in a cross section of the grain-oriented electrical steel sheet orthogonal to the groove, a KAM value is 0.1 or more and 3.0 or less in a region on a central side in a thickness direction of the grain-oriented electrical steel sheet with respect to the groove, the region being surrounded by a square having one side in contact with a groove bottom of the groove and having a length of 50 μm in each side.

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