Location History:
- Kitakyushu, JA (1976)
- Kitakyushu, JP (1980)
Company Filing History:
Years Active: 1976-1980
Title: Makoto Inatomi: Innovator in Steel Refining Technologies
Introduction
Makoto Inatomi is a prominent inventor based in Kitakyushu, Japan. He has made significant contributions to the field of metallurgy, particularly in the refining of metals and alloys. With a total of 2 patents, Inatomi's work focuses on improving the quality and efficiency of steel production.
Latest Patents
Inatomi's latest patents include a method of dephosphorization of metal or alloy. This innovative technique involves using a carbon-unsaturated molten metal or molten alloy that contains elements more oxidizable than iron, such as chromium and silicon. By adding a flux composition comprising calcium carbide and a halide of alkali earth metal, such as calcium fluoride, in a non-oxidizing atmosphere, the method effectively dephosphorizes the metal. This process is particularly beneficial in refining ferrochromium or crude stainless steel, making it feasible to produce low phosphorus stainless steel economically.
Another notable patent is a method for producing an extremely low carbon and nitrogen steel in a vacuum refining apparatus. This method effectively prevents air leaks from the furnace tank, thereby lowering the nitrogen partial pressure within the tank. This innovation is crucial for producing high-quality steel with minimal impurities.
Career Highlights
Makoto Inatomi is associated with Nippon Steel Corporation, where he has applied his expertise in metallurgy to advance steel production technologies. His work has been instrumental in enhancing the efficiency and quality of steel manufacturing processes.
Collaborations
Inatomi has collaborated with notable colleagues, including Hiroyuki Katayama and Hiroyuki Kajioka. These partnerships have contributed to the development of innovative solutions in the field of metallurgy.
Conclusion
Makoto Inatomi's contributions to steel refining technologies have made a significant impact on the industry. His innovative methods for dephosphorization and low carbon steel production demonstrate his commitment to advancing metallurgy. Inatomi's work continues to influence the future of steel manufacturing.