MUMBAI, India, Aug. 29 -- Intellectual Property India has published a patent application (202517075664 A) filed by Nippon Steel Corporation, Tokyo, on Aug. 8, for 'oxygen opening device.'
Inventor(s) include Maegawa Hiroki; and Matsuoka Yukihiro.
The application for the patent was published on Aug. 29, under issue no. 35/2025.
According to the abstract released by the Intellectual Property India: "This oxygen opening device 8 comprises: a conveyance device 10 that conveys an oxygen lance pipe for guiding oxygen such that the tip of the oxygen lance pipe is placed in a pouring hole 3 provided in a lower portion of a ladle 2 for molten steel, and at a position heated by a heat source positioned away from the pouring hole 3; an ignition con...