| Patent Number |
Title Of Patent |
Date Issued |
| 8177920 |
Grain-oriented electrical steel sheet and process for producing the same |
May 15, 2012 |
| The present invention provides a grain-oriented electrical steel sheet produced by a method for promoting secondary recrystallization without an inhibitor, the grain-oriented electrical steel sheet including 2.0% or more and 4.5% or less of Si and 0.01% or more and 0.5% or less of Mn on |
| 6811619 |
Method of manufacturing grain-oriented electrical steel sheets |
November 2, 2004 |
| A method of manufacturing a grain-oriented steel sheet including hot-rolling a slab prepared using molten steel containing, by mass %, C of not more than about 0.08%, Si of about 2.0 to about 8.0% and Mn of about 0.005 to about 3.0%; optionally annealing the hot-rolled steel sheet; p |
| 6758915 |
Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for p |
July 6, 2004 |
| The invention is a grain-oriented magnetic steel sheet having extremely low iron loss, suitable for use as an iron core material for transformers and power generators, and a method for producing the same. The method includes forming a coating layer on a surface of a steel sheet having a |
| 6676771 |
Method of manufacturing grain-oriented electrical steel sheet |
January 13, 2004 |
| Manufacturing a grain-oriented electrical steel sheet, a secondary recrystallization step and a forsterite coating forming step are separated into first batch annealing for developing secondary recrystallization and second batch annealing for forming a forsterite coating, with continuous |
| 5876520 |
Semiprocessed nonoriented magnetic steel sheet having excellent magnetic characteristics and met |
March 2, 1999 |
| The present invention relates to a semiprocessed nonoriented magnetic steel sheet which is used in iron cores of motors and transformers, finished to a final product by rolling having a reduction rate of 2 to 18% after final annealing by a manufacturer, and assures desired magnetic chara |
