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:
Jun. 01, 2021
Filed:
Jan. 16, 2018
Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
Nippon Steel Corporation, Tokyo, JP;
Hiroyoshi Yashiki, Tokyo, JP;
Yoshiaki Natori, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Susumu Mukawa, Tokyo, JP;
Takuya Matsumoto, Tokyo, JP;
Koji Fujita, Tokyo, JP;
Takashi Morohoshi, Tokyo, JP;
Masafumi Miyazaki, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A non-oriented electrical steel sheet contains, as a chemical composition, by mass %, C: more than 0% and 0.0050% or less, Si: 3.0% to 4.0%, Mn: 1.0% to 3.3%, P: more than 0% and less than 0.030%, S: more than 0% and 0.0050% or less, sol. Al: more than 0% and 0.0040% or less, N: more than 0% and 0.0040% or less, O: 0.0110% to 0.0350%, Sn: 0% to 0.050%, Sb: 0% to 0.050%, Ti: more than 0% and 0.0050% or less, and a remainder including Fe and impurities, in which Sn+Sb: 0.050% or less, Si−0.5×Mn: 2.0% or more, and an O content in a sheet thickness central portion excluding a surface layer portion which is a range from a front surface and a rear surface to a position of 10 μm in a depth direction is less than 0.0100%.