Title:
ELECTROMAGNETIC STEEL SHEET, LAMINATED CORE, AND LAMINATED CORE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/256534
Kind Code:
A1
Abstract:
This electromagnetic steel sheet comprises a base steel sheet, a first insulating coating that is formed on a first surface of the base steel sheet and is capable of adhesion, and a second insulating coating that is formed on a second surface of the base steel sheet on the reverse of the first surface and is capable of adhesion. The average pencil hardness of the first insulating coating is HB to 3H, and the average pencil hardness of the second insulating coating is greater than the average pencil hardness of the first insulating coating.
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Inventors:
TANAKA ICHIRO (JP)
TAKEDA KAZUTOSHI (JP)
FUKUCHI MINAKO (JP)
TAKATANI SHINSUKE (JP)
YAMAZAKI SHUICHI (JP)
TAKEDA KAZUTOSHI (JP)
FUKUCHI MINAKO (JP)
TAKATANI SHINSUKE (JP)
YAMAZAKI SHUICHI (JP)
Application Number:
PCT/JP2021/023030
Publication Date:
December 23, 2021
Filing Date:
June 17, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C09D5/25; B32B15/04; B32B15/18; C09D201/00; C22C38/00; C22C38/06; C23C26/00; H01F1/147; H01F1/18; H01F27/24; H01F41/02; H02K1/04
Domestic Patent References:
| WO2019235264A1 | 2019-12-12 | |||
| WO2018116881A1 | 2018-06-28 | |||
| WO2019123885A1 | 2019-06-27 |
Foreign References:
| JP2020104245A | 2020-07-09 | |||
| JP2019508573W | ||||
| JP2017186542A | 2017-10-12 |
Other References:
See also references of EP 4169987A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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