MUMBAI, India, Oct. 12 -- Intellectual Property India has published a patent application (202617070375 A) filed by Jfe Steel Corporation on June 05, 2026, for Seamless Steel Pipe, Seamless Steel Pipe Manufacturing Method, Pressure Vessel, And Pressure Vessel Manufacturing Method.

Inventors include Matsubara Kazuki; Okano Hiroshi; Takagi Shusaku; Toda Yuki; Kageyama Taisuke; and Takemura Yasumasa.

The application for the patent was published on October 09, 2026, under issue no. 41/2026.

Abstract: One purpose of the present invention is to provide a seamless steel pipe that can be highly suitably used as a member for a pressure vessel or the like, that has a thick wall with a high martensite fraction, and that exhibits excellent quenching ...