Company Filing History:
Years Active: 1993-1994
Title: Shigeto Fujii: Innovator in Galvanized Steel Manufacturing
Introduction
Shigeto Fujii is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of steel manufacturing, particularly in the process of galvanizing steel sheets. With a total of 2 patents to his name, Fujii's work has had a notable impact on the industry.
Latest Patents
Fujii's latest patents focus on innovative processes for manufacturing galvanized steel sheets through nickel pre-coating. The first patent describes a method that involves coating a steel sheet with nickel in an amount ranging from 0.2 to 2 g/m². The coated steel sheet is then heated to a temperature between 420°C and 500°C in a non-oxidative atmosphere. Following this, the nickel-coated steel sheet is dipped into a molten zinc bath containing aluminum at a concentration of 0.1% to 1%, ensuring that the process occurs without contact with air. The steel sheet must be dipped into the molten zinc bath within 15 seconds after its temperature exceeds 350°C during the heating step.
The apparatus designed for this process includes a nickel electroplating apparatus, a non-oxidative atmosphere-heating apparatus, and a galvanizing apparatus equipped with a molten zinc adhering amount-controlling device. This setup is arranged sequentially in the direction of steel sheet delivery. The non-oxidative atmosphere-heating apparatus features a ring transformer with a space for steel sheet delivery, a conductor roll at the inlet side, and an atmospheric gas-feeding device for supplying a non-oxidative gas to the atmospheric chamber.
Career Highlights
Fujii is associated with Nippon Steel Corporation, where he has been instrumental in advancing steel manufacturing techniques. His innovative approaches have contributed to the efficiency and quality of galvanized steel products.
Collaborations
Fujii has worked alongside notable colleagues such as Kazumi Nishimura and Hisao Odashima, contributing to various projects and innovations within the steel industry.
Conclusion
Shigeto Fujii's contributions to the field of galvanized steel manufacturing through his innovative patents highlight his role as a key inventor in the industry. His work continues to influence manufacturing processes and improve product quality.