Company Filing History:
Years Active: 2015-2025
Title: Hitoshi Sueyoshi: Innovator in Abrasion-Resistant Steel Technology
Introduction
Hitoshi Sueyoshi is a prominent inventor based in Fukuyama, Japan. He has made significant contributions to the field of materials science, particularly in the development of abrasion-resistant steel plates. With a total of 4 patents to his name, Sueyoshi's work has garnered attention for its innovative approaches to enhancing the durability and workability of steel products.
Latest Patents
One of Sueyoshi's latest patents focuses on an abrasion-resistant steel plate and the method of producing it. This invention provides an abrasion-resistant steel plate that excels in both abrasion resistance and wide bending workability. The steel plate features a specific chemical composition, wherein the volume fraction of martensite at a depth of 1 mm from the surface is 90% or more. Additionally, the hardness at this depth ranges from 500 HBW 10/3000 to 650 HBW 10/3000 in Brinell hardness. Furthermore, the transverse direction hardness difference is maintained at 30Hv10 or less in Vickers hardness, ensuring consistent performance across the material.
Another patent by Sueyoshi also addresses the production of abrasion-resistant steel plates. This invention emphasizes the importance of a number density of TiC precipitates of 0.5 μm or more in equivalent circular diameter at a depth of 1 mm from the surface, which should be 400/mm or more. The hardness at this depth is specified to be 360 HBW 10/3000 or more in Brinell hardness, with the same transverse direction hardness difference criteria as his previous patent.
Career Highlights
Hitoshi Sueyoshi is currently employed at JFE Steel Corporation, where he continues to innovate in the field of steel manufacturing. His work has not only advanced the technology behind abrasion-resistant materials but has also contributed to the overall efficiency and effectiveness of steel products used in various industries.
Collaborations
Sueyoshi has collaborated with notable colleagues, including Nobuyuki Ishikawa and Akihiko Tanizawa. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise, further enhancing the quality of their innovations.
Conclusion
Hitoshi Sueyoshi's contributions to the field of abrasion-resistant steel technology