Invention Grant
- Patent Title: Electrical steel sheet, laminated core, and laminated core manufacturing method
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Application No.: US17795432Application Date: 2021-06-17
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Publication No.: US11749431B2Publication Date: 2023-09-05
- Inventor: Ichiro Tanaka , Kazutoshi Takeda , Minako Fukuchi , Shinsuke Takatani , Shuichi Yamazaki
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP 20104245 2020.06.17
- International Application: PCT/JP2021/023030 2021.06.17
- International Announcement: WO2021/256534A 2021.12.23
- Date entered country: 2022-07-26
- Main IPC: H01F1/18
- IPC: H01F1/18 ; H01F41/02 ; B32B15/01

Abstract:
This electrical steel sheet includes a base steel sheet, a first insulation coating formed on a first surface of the base steel sheet and having adhesiveness, and a second insulation coating formed on a second surface of the base steel sheet which is a back surface to the first surface and having adhesiveness, in which an average pencil hardness of the first insulation coating is HB or higher and 3 H or lower, and an average pencil hardness of the second insulation coating is higher than the average pencil hardness of the first insulation coating.
Public/Granted literature
- US20230064468A1 ELECTRICAL STEEL SHEET, LAMINATED CORE, AND LAMINATED CORE MANUFACTURING METHOD Public/Granted day:2023-03-02
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