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.:
Date of Patent:
Nov. 23, 2021
Filed:
Dec. 21, 2015
Applicant:
Posco, Pohang-si, KR;
Inventors:
Oh-Yeoul Kwon, Pohang-si, KR;
Seung Gon Lee, Pohang-si, KR;
Hyun-Chul Park, Pohang-si, KR;
Jung Hun Park, Pohang-si, KR;
Seong-Kyu See, Pohang-si, KR;
Sung-Yeun Won, Pohang-si, KR;
Jae-Kyoum Kim, Pohang-si, KR;
Jong-Tae Park, Pohang-si, KR;
Se Min Park, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/30 (2006.01); C21D 8/12 (2006.01); H01F 1/18 (2006.01); C22C 38/00 (2006.01); B23K 26/40 (2014.01); B23K 26/0622 (2014.01); B23K 26/364 (2014.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C23C 8/18 (2006.01); B23K 101/34 (2006.01); B23K 103/04 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1283 (2013.01); B23K 26/0622 (2015.10); B23K 26/364 (2015.10); B23K 26/40 (2013.01); C21D 8/12 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1244 (2013.01); C21D 8/1255 (2013.01); C21D 8/1261 (2013.01); C21D 8/1272 (2013.01); C21D 8/1288 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C23C 8/18 (2013.01); H01F 1/18 (2013.01); B23K 2101/34 (2018.08); B23K 2103/04 (2018.08); C21D 2201/05 (2013.01);
Abstract
Provided is an oriented electrical steel sheet including a groove existing on the surface of the electrical steel sheet and a forsterite layer formed on a part or all of the surface of the electrical steel sheet, in which forsterite which is extended from the forsterite layer and penetrates to a base steel sheet in an anchor form is present on the surface of the side of the groove.