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.:
Date of Patent:
May. 29, 2018
Filed:
Nov. 10, 2009
Kazutoshi Takeda, Tokyo, JP;
Kenji Kosuge, Tokyo, JP;
Tatsuya Takase, Tokyo, JP;
Hiroyasu Fujii, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Kenji Kosuge, Tokyo, JP;
Tatsuya Takase, Tokyo, JP;
Hiroyasu Fujii, Tokyo, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
An electrical steel sheet is provided which is capable of improving heat conductivity. The electrical steel sheet includes: a steel strip () for an electrical steel sheet; and an insulating film () formed at a surface of the steel strip () and containing metal phosphate and organic resin. At least a part of the metal phosphate includes at least one kind of crystal structure selected from a group consisting of a cubic system, a tetragonal system, a hexagonal system, and an orthorhombic system. The organic resin contains at least one kind selected from a group consisting of an acryl-based resin, an epoxy-based resin, and a polyester resin having a carboxyl group or a hydroxyl group at a surface of an emulsion particle for one part by mass to 50 parts by mass relative to 100 parts by mass of the metal phosphate.