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.

Date of Patent:
Jun. 19, 2001

Filed:

Aug. 14, 1998
Applicant:
Inventors:

Osamu Kondo, Chiba, JP;

Akihiro Matsuzaki, Chiba, JP;

Shigeaki Takajo, Chiba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/16 ; H01F 1/147 ;
U.S. Cl.
CPC ...
H01F 1/16 ; H01F 1/147 ;
Abstract

Electromagnetic steel sheet having excellent magnetic properties and a texture gratly integrated in the &lcub;100&rcub;<001> orientation, and an uncomplicated and low cost production method; with about a 15 &mgr;&OHgr;&middot;cm or more specific resistivity, about a 2.0 or more &lcub;100&rcub;<001> integration degree /&lcub;111&rcub;<uvw> integration degree and about a 10 &mgr;m to 500 &mgr;m grain diameter; when about 0.1 to 3.5% by weight of Si is present, the &lcub;100&rcub;<001> integration degree is about 10 or more; when about 0.2 to 1.2% by weight of P is present, the &lcub;100&rcub;<001> integration degree is about 3 or more; by applying a large reduction ratio to a steel slab in the vicinity of the final stage of hot rolling, with the hot rolling finishing temperature controlled at about 750 to 1150&deg; C., hot rolled steel having a texture highly integrated in the &lcub;100&rcub;<001> orientation is economically produced.


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