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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.:

US 10889871 B1

PDFFull Text
Date of Patent:
Jan. 12, 2021

Filed:

Oct. 29, 2013

Method of manufacturing grain-oriented electrical steel sheet exhibiting low iron loss

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Shigehiro Takajo, Tokyo, JP;

Masanori Uesaka, Tokyo, JP;

Kazuhiro Hanazawa, Tokyo, JP;

Assignee:

JFE Steel Corporation, Tokyo, JP;

Attorney:

RatnerPrestia

Primary Examiner:

Jophy S Koshy

Int. Cl.
CPC ...
C21D 1/34 (2006.01); H01F 1/16 (2006.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); H01F 41/04 (2006.01);
U.S. Cl.
CPC ...
C21D 1/34 (2013.01); C21D 8/12 (2013.01); C21D 8/1244 (2013.01); C21D 9/46 (2013.01); H01F 1/16 (2013.01); H01F 41/04 (2013.01); C21D 2201/05 (2013.01);
Abstract

A method of manufacturing a grain-oriented electrical steel sheet is provided. When irradiating the surface of a grain-oriented electrical steel sheet having a sheet thickness t with an electron beam in a direction intersecting a rolling direction, the irradiation energy E(t) of the electron beam is adjusted to satisfy Ewmin(0.23)×(1.61−2.83×t (mm))≤E(t)≤Ewmin(0.23)×(1.78−3.12×t (mm)) (Expression (1)) using the value of the irradiation energy Ewmin(0.23) that minimizes iron loss for material with a sheet thickness of 0.23 mm.

Find Patent Forward Citations

Takajo, Shigehiro. (2021). Method of manufacturing grain-oriented electrical steel sheet exhibiting low iron loss (U.S. Patent No. 10889871). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10889871

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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