MUMBAI, India, Oct. 31 -- Intellectual Property India has published a patent application (202517093961 A) filed by Nippon Steel Corporation, Tokyo, on Sept. 30, for 'grain-oriented electromagnetic steel sheet and method for producing grain-oriented electromagnetic steel sheet.'
Inventor(s) include Atsumi Haruhiko; Yamagata Ryutaro; Kataoka Takashi; Hirayama Takaaki; and Sakai Tatsuhiko.
The application for the patent was published on Oct. 31, under issue no. 44/2025.
According to the abstract released by the Intellectual Property India: "In this grain-oriented electromagnetic steel sheet, when measurement points of crystal orientation by x-ray diffraction are arranged at a 6-mm pitch in the rolling direction and the direction orthogonal to the rolling direction, respectively, the proportion of measurement points with an orientation difference of within 15 from [211]011 to all measurement points is 5% or less. Oxygen intensity reduction regions are present periodically in an oxygen intensity profile of the surface of the primary coating film obtained by line analysis along the rolling direction by an electron beam microanalyzer, and the ratio Iosubmin/sub/Iosubmax/sub of the minimum oxygen intensity Iosubmin/sub in an oxygen intensity reduction region and the maximum oxygen intensity Iosubmax/sub of a region other than an oxygen intensity reduction region is 0.85-0.96 inclusive."
The patent application was internationally filed on Apr. 11, 2024, under International application No.PCT/JP2024/014697.
Disclaimer: Curated by HT Syndication.
