IP Library Granted Patent US 8,840,734
Granted Patent B2
US 8,840,734 · App. 14/115,758 · Granted Sep 23, 2014

Non-oriented electrical steel sheet

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,840,734
App. No.
14/115,758
Granted
Sep 23, 2014
Kind
B2
Abstract

A non-oriented electrical steel sheet, containing: C: 0.01 mass % or less; Si: 1.0 mass % or more and 3.5 mass % or less; Al: 0.1 mass % or more and 3.0 mass % or less; Mn: 0.1 mass % or more and 2.0 mass % or less; P: 0.1 mass % or less; S: 0.005 mass % or less; Ti: 0.001 mass % or more and 0.01 mass % or less; N: 0.005 mass % or less; and Y: more than 0.05 mass % and 0.2 mass % or less, with the balance being iron and inevitable impurities.

Claims (17)

1. A non-oriented electrical steel sheet, containing:

C: 0.01 mass % or less;

Si: 1.0 mass % or more and 3.5 mass % or less;

Al: 0.1 mass % or more and 3.0 mass % or less;

Mn: 0.1 mass % or more and 2.0 mass % or less;

P: 0.1 mass % or less;

S: 0.005 mass % or less;

Ti: 0.001 mass % or more and 0.01 mass % or less;

N: 0.005 mass % or less; and

Y: more than 0.05 mass % and 0.2 mass % or less,

with a balance being iron and inevitable impurities.

2. The non-oriented electrical steel sheet according to claim 1 , further comprising:

elements of group(s) of one type or two types or more selected from:

a first group of one type or two types selected from a group consisting of Cu: 0.5 mass % or less, and Cr: 20 mass % or less;

a second group of one type or two types selected from a group consisting of Sn and Sb for a total of 0.3 mass % or less;

a third group of Ni: 1.0 mass % or less, and

a fourth group of Ca: 0.01 mass % or less.

Assignments (2)
CHANGE OF NAME Recorded May 14, 2019
From: NIPPON STEEL & SUMITOMO METAL CORPORATION
To: NIPPON STEEL CORPORATION
Reel/Frame 049257/0828 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2013
From: MIYAZAKI, MASAFUMI; YAMAMURA, HIDEAKI; KAWAKAMI, KAZUTO
To: NIPPON STEEL & SUMITOMO METAL CORPORATION
Reel/Frame 031554/0272 →