MUMBAI, India, Nov. 14 -- Intellectual Property India has published a patent application (202517097087 A) filed by Nippon Steel Corporation, Tokyo, on Oct. 8, for 'insulation coating treatment liquid for grain-oriented electrical steel sheet, method for producing same, and method for producing grain-oriented electrical steel sheet.'

Inventor(s) include Takatani, Shinsuke; Takeda, Kazutoshi; and Shibayama, Atsushi.

The application for the patent was published on Nov. 14, under issue no. 46/2025.

According to the abstract released by the Intellectual Property India: "This insulating film processing liquid for grain-oriented electrical steel sheets contains colloidal silica and a phosphoric acid metal salt of at least one metal selected fro...