Company Filing History:
Years Active: 2024-2025
Title: Norifumi Asahara: Innovator in Chromium-Containing Molten Iron Production
Introduction
Norifumi Asahara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of metallurgy, particularly in the production of chromium-containing molten iron. With a total of 2 patents, Asahara's work has advanced the methods used in electric furnace operations.
Latest Patents
Asahara's latest patents focus on innovative methods for producing chromium-containing molten iron. The first patent describes a process where a charged material, consisting of alloy iron and unreduced slag containing Cr oxide, is introduced into an electric furnace. The mixture is carefully controlled, with a mass ratio of metallic Si to Cr oxide set between 0.30 and 0.40, and a carbon concentration ranging from 2.0% by mass to saturation. The process requires specific heating conditions, with an attainment temperature between 1400° C. and 1700° C., ensuring optimal reduction processing of Cr oxide.
The second patent also outlines a method for producing chromium-containing molten iron, utilizing a charged material that includes ferrochromium and unreduced slag. This method is implemented in an AC electric furnace with three electrodes, maintaining the same mass ratio and carbon concentration as the first patent. These innovations are crucial for enhancing the efficiency and quality of chromium-containing molten iron production.
Career Highlights
Norifumi Asahara is associated with Nippon Steel Corporation, where he has applied his expertise in metallurgy. His work has not only contributed to the company's advancements but has also positioned him as a key figure in the industry.
Collaborations
Asahara has collaborated with notable colleagues, including Katsuhiko Kato and Mikio Futaka. Their combined efforts have fostered innovation and development in the field of metallurgy.
Conclusion
Norifumi Asahara's contributions to the production of chromium-containing molten iron through his innovative patents highlight his role as a significant inventor in the metallurgy sector. His work continues to influence the industry and improve production methods.