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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 10604818 B1

PDFFull Text
Date of Patent:
Mar. 31, 2020

Filed:

Aug. 13, 2015

Grain-oriented electrical steel sheet

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Hiroyoshi Yashiki, Kobe, JP;

Kenichi Murakami, Kitakyushu, JP;

Nobusato Morishige, Kobe, JP;

Hirotoshi Tada, Himeji, JP;

Yoshiaki Natori, Himeji, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Lauren R Colgan

Int. Cl.
CPC ...
B32B 15/04 (2006.01); B32B 17/06 (2006.01); C21D 8/12 (2006.01); C22C 38/60 (2006.01); H01F 1/16 (2006.01); C22C 38/00 (2006.01); B32B 15/18 (2006.01); B22D 11/00 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1222 (2013.01); B22D 11/001 (2013.01); B32B 15/04 (2013.01); B32B 15/18 (2013.01); C21D 8/12 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C21D 8/1283 (2013.01); C21D 9/46 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/60 (2013.01); H01F 1/16 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/206 (2013.01); B32B 2307/208 (2013.01); B32B 2307/732 (2013.01); C21D 2201/05 (2013.01);
Abstract

A grain-oriented electrical steel sheet includes a steel layer and an insulation coating arranged in directly contact with the steel layer thereon. The steel layer includes, as a chemical composition, by mass %, 2.9 to 4.0% of Si, 2.0 to 4.0% of Mn, 0 to 0.20% of Sn, and 0 to 0.20% of Sb. In the steel layer, a silicon content and a manganese content expressed in mass % satisfy 1.2%≤Si−0.5×Mn≤2.0%, and a tin content and an antimony content expressed in mass % satisfy 0.005%≤Sn+Sb≤0.20%.

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