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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 11377569 B1

PDFFull Text
Date of Patent:
Jul. 05, 2022

Filed:

Jul. 15, 2011

Electrical steel sheet and method for manufacturing the same

Applicants:

Kazutoshi Takeda, Tokyo, JP;

Kenji Kosuge, Tokyo, JP;

Tatsuya Takase, Tokyo, JP;

Kohji Muneda, Tokyo, JP;

Inventors:

Kazutoshi Takeda, Tokyo, JP;

Kenji Kosuge, Tokyo, JP;

Tatsuya Takase, Tokyo, JP;

Kohji Muneda, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
C09D 7/61 (2018.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); H01F 1/18 (2006.01); C09D 5/08 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); B05D 7/14 (2006.01); C23C 22/74 (2006.01); C09D 7/65 (2018.01); C09D 7/40 (2018.01); H01B 7/02 (2006.01); C09D 1/00 (2006.01); C09D 127/18 (2006.01); C09D 167/00 (2006.01); C09D 127/12 (2006.01); C09D 133/00 (2006.01); C09D 163/00 (2006.01); C09D 127/04 (2006.01); C08K 3/22 (2006.01); C08K 3/02 (2006.01); B05D 3/02 (2006.01);
U.S. Cl.
CPC ...
C09D 7/61 (2018.01); B05D 7/14 (2013.01); C09D 5/084 (2013.01); C09D 7/65 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C21D 8/12 (2013.01); C21D 8/1283 (2013.01); C21D 9/46 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C23C 22/74 (2013.01); H01B 7/02 (2013.01); H01F 1/18 (2013.01); B05D 3/0254 (2013.01); B05D 2502/00 (2013.01); B05D 2504/00 (2013.01); B05D 2506/10 (2013.01); B05D 2508/00 (2013.01); C08K 2003/026 (2013.01); C08K 2003/2237 (2013.01); C08K 2003/2258 (2013.01); C09D 1/00 (2013.01); C09D 7/40 (2018.01); C09D 127/04 (2013.01); C09D 127/12 (2013.01); C09D 127/18 (2013.01); C09D 133/00 (2013.01); C09D 163/00 (2013.01); C09D 167/00 (2013.01); C21D 2201/05 (2013.01); C21D 2211/005 (2013.01); Y10T 428/254 (2015.01); Y10T 428/3154 (2015.04); Y10T 428/31511 (2015.04); Y10T 428/31529 (2015.04); Y10T 428/31681 (2015.04); Y10T 428/31699 (2015.04);
Abstract

An electrical steel sheet () is provided with a base iron () and an insulating film () formed on a surface of the base iron (). The insulating film () contains: a first component: 100 parts by mass, the first component containing: a metal phosphate: 100 parts by mass; and one kind selected from a group consisting of an acrylic resin, an epoxy resin and a polyester resin which have an average particle size of 0.05 μm to 0.50 μm, or a mixture or copolymer of two or three kinds selected from the group: 1 part by mass to 50 parts by mass; and a second component composed of dispersion or powder of a fluorine resin having an average particle size of 0.05 μm to 0.35 μm: 0.5 parts by mass to 10 parts by mass.

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