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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 10626474 B1

PDFFull Text
Date of Patent:
Apr. 21, 2020

Filed:

Dec. 24, 2015

Grain-oriented electrical steel sheet and method of manufacturing same

Applicant:

Jfe Steel Corporation, Chiyoda-ku, Tokyo, JP;

Inventors:

Yukihiro Shingaki, Tokyo, JP;

Tomoyuki Okubo, Tokyo, JP;

Hirotaka Inoue, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Chiyoda-ku, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Jie Yang

Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 8/12 (2006.01); C23C 8/26 (2006.01); C22C 38/60 (2006.01); H01F 1/16 (2006.01); C22C 38/00 (2006.01); C23C 8/50 (2006.01); C22C 38/16 (2006.01); C23C 8/02 (2006.01); C22C 38/08 (2006.01); C22C 38/14 (2006.01); C22C 38/12 (2006.01); C22C 38/18 (2006.01); C23C 8/80 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1288 (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 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/60 (2013.01); C23C 8/02 (2013.01); C23C 8/26 (2013.01); C23C 8/50 (2013.01); C23C 8/80 (2013.01); H01F 1/16 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1255 (2013.01);
Abstract

A grain-oriented electrical steel sheet that includes a base coating with a high TiN ratio advantageous for the application of tension to the steel sheet and has excellent magnetic property is provided. The grain-oriented electrical steel sheet includes: a base coating having a peak value PTiN of TiN in the form of osbornite, observed in a range of 42°<2θ<43° and a peak value PMgSiOof MgSiOin the form of forsterite, observed in a range of 35°<2θ<36° of both more than 0 and satisfying a relationship PTiN≥PMgSiO, in thin-film X-ray diffraction analysis; and an iron loss Wof 1.0 W/kg or less.

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