MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517050802 A) filed by Jfe Steel Corporation, Tokyo, on May 27, for 'blast-furnace operating method.'

Inventor(s) include Okamoto Yuki; Ohira Yasuyoshi; Fukumoto Yasuhiro; Kimiya Koji; Kaise Tatsuya; Wakai Hajime; and Yamamoto Tetsuya.

The application for the patent was published on June 13, under issue no. 24/2025.

According to the abstract released by the Intellectual Property India: "The present invention resolves the problem that conventional blast-furnace banking techniques have required long-term shutdowns of at least 5.5 months post-shutdown, and proposes a blast-furnace operating method that allows smooth startup of blast furnaces and a sh...