MUMBAI, India, Nov. 7 -- Intellectual Property India has published a patent application (202517094468 A) filed by Nippon Steel Corporation, Tokyo, on Oct. 1, for 'grain-oriented electromagnetic steel sheet and method for forming insulating coating.'
Inventor(s) include Takeda Kazutoshi; Takatani Shinsuke; Kataoka Takashi; and Kogakura Yuuki.
The application for the patent was published on Nov. 7, under issue no. 45/2025.
According to the abstract released by the Intellectual Property India: "This grain-oriented electromagnetic steel sheet comprises a base material steel sheet and an insulating coating formed on the surface of the base material steel sheet. The base material steel sheet comprises a flat section and a groove section that extends in a direction at a 45-135 angle to a rolling direction; the depth of the groove section is 10-30 m; and the width of the groove section is 10-200 m. The insulating coating comprises: an intermediate layer that is formed on the base material steel sheet side, that includes a crystalline metal phosphate and that has a thickness of 0.1-15.0 m; and a tensile coating layer that is formed on the surface side of the insulating coating. For at least 50% of the groove section, by area ratio, the base material steel sheet is covered by the insulating coating which includes the tensile coating layer and the intermediate layer that has a thickness of 0.1-9.0 m."
The patent application was internationally filed on Apr. 12, 2024, under International application No.PCT/JP2024/014842.
Disclaimer: Curated by HT Syndication.
