MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202647085122 A) filed by Posco Co. , Ltd on July 11, 2026, for Electrical Steel Sheet For Electromagnetic Shielding And Method For Manufacturing Same.
Inventors include Kwon, Yunik; Han, Minsoo; Ko, Hyunseok; and Kim, Jae Hyung.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: An electrical steel sheet for electromagnetic shielding, according to one embodiment of the present invention, has 70 area% or more of crystal grains having a ratio (D2/D1) of a diameter of a circumscribed circle (D1) to a diameter of an inscribed circle (D2) of 0.5 or more among all crystal grains on the surface of the steel sheet, wherein an average crystal grain size in the surface portion from the surface of the steel sheet to less than 1/4 of the steel sheet thickness in the thickness direction is between 80 µm and 500 µm, while the average crystal grain size in the central portion of 1/4 to 1/2 of the steel sheet thickness is 50 µm or less.
Disclaimer: Curated by HT Syndication.
