MUMBAI, India, April 11 -- Intellectual Property India has published a patent application (202517016486 A) filed by Nippon Steel Corporation, Tokyo, on Feb. 25, for 'stacked iron core and manufacturing method of stacked iron core.'
Inventor(s) include Mizumura, Takahito; Mogi, Hisashi; and Takahashi, Masaru.
The application for the patent was published on April 11, under issue no. 15/2025.
According to the abstract released by the Intellectual Property India: "1 Ra(D)/Ra(S) ? 12 is satisfied in each of at least one pair of block opposing end faces (for example, a pair of block opposing end faces (111a, 111i)). Here, Ra(D) is the surface roughness of the block opposing end face in the stacking direction. Ra(S) is the surface roughness in ...