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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 12123065 B1

PDFFull Text
Date of Patent:
Oct. 22, 2024

Filed:

Dec. 23, 2016

Grain-oriented electrical steel sheet and method for manufacturing same

Applicant:

Posco, Pohang-si, KR;

Inventors:

Oh Yeoul Kwon, Pohang-si, KR;

Se Min Park, Pohang-si, KR;

Jong-Tae Park, Pohang-si, KR;

Jae Kyoum Kim, Pohang-si, KR;

Seung Gon Lee, Pohang-si, KR;

Won Gul Lee, Pohang-si, KR;

Assignee:

POSCO CO., LTD, Pohang-si, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Jenny R Wu

Int. Cl.
CPC ...
B23K 26/364 (2014.01); B23K 26/40 (2014.01); C21D 8/12 (2006.01); C21D 10/00 (2006.01); C23G 1/02 (2006.01); H01F 1/18 (2006.01); B23K 103/04 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1283 (2013.01); B23K 26/364 (2015.10); B23K 26/40 (2013.01); C21D 8/12 (2013.01); C21D 10/00 (2013.01); C23G 1/02 (2013.01); H01F 1/18 (2013.01); B23K 2103/04 (2018.08); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1255 (2013.01); C21D 8/1294 (2013.01); C21D 9/46 (2013.01); C21D 2201/05 (2013.01); C22C 38/02 (2013.01);
Abstract

A grain-oriented electrical steel sheet according to an embodiment of the present disclosure includes: a forsterite layer formed on the surface of an electrical steel sheet; a groove which is formed on the forsterite layer in a direction perpendicular to a rolling direction; and a forsterite calcination layer which is formed in the direction of both ends of the electrical steel sheet on the basis of an upper end of the groove and has a width of 1.1 to 1.3 times the width of the groove.

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Kwon, Oh. (2024). Grain-oriented electrical steel sheet and method for manufacturing same (U.S. Patent No. 12123065). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12123065

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