MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517047424 A) filed by Nippon Steel Corporation, Tokyo, on May 16, for 'grain-oriented electrical steel sheet.'
Inventor(s) include Mogi Hisashi; Iwaki Masataka; Wada Naoki; and Takahashi Masaru.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "This grain-oriented electrical steel sheet has a steel sheet in which a plurality of grooves that extend in a direction intersecting the rolling direction and that have a depth in the sheet thickness direction are formed on the surface thereof. Taking a groove edge part to be the range of 40 m from a groove entrance in a direction perpendicular to the sheet thickness direction and away from the widthwise center of the groove in a cross-section of the steel sheet parallel to the rolling direction and parallel to the sheet thickness direction: in the groove edge parts in a plurality of said cross-sections, the proportion of the number of protrusions having a height of 2.0 m to smaller than 6.0 m is from 10% to lower than 40%; and when viewed from above, brush marks having a width of 4-25 m and a depth 4 m or below are present in from 10% to less than 80% of the groove edges in terms of area percentage."
The patent application was internationally filed on Nov. 22, 2023, under International application No.PCT/JP2023/042058.
Disclaimer: Curated by HT Syndication.
