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1 out of 1,233 Years Active: 2018
Title: Katsutoshi Yamashita: Innovator of High Strength Steel for Springs
Introduction
Katsutoshi Yamashita, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of metallurgy. With a keen focus on developing high strength steel for springs, he has innovated a method that enhances the performance of springs in various applications. His dedication to enhancing material properties has resulted in the issuance of one notable patent.
Latest Patents
Yamashita holds a patent for "Steel for spring, and method for producing spring." This invention introduces a high strength steel that boasts excellent decarburization resistance and scale exfoliation properties. By optimizing the composition of elements such as carbon (C), silicon (Si), manganese (Mn), chromium (Cr), antimony (Sb), and tin (Sn), the steel demonstrates enhanced durability and performance. The specific composition of the steel includes C: more than 0.45 mass % and less than 0.65 mass %, Si: 0.15 mass % or more and 0.70 mass % or less, Mn: 0.10 mass % or more and 1.00 mass % or less, Cr: 0.20 mass % or more and 1.50 mass % or less, P: 0.025 mass % or less, S: 0.025 mass % or less, O: 0.0015 mass % or less, Sb: 0.010 mass % or more and less than 0.030 mass %, and Sn: 0.010 mass % or more and 0.030 mass % or less, all produced under predetermined conditions.
Career Highlights
Yamashita has had an impressive career, working with prestigious companies such as JFE Steel Corporation and Sumihatsu Co., Ltd. His experience in these organizations has provided him with valuable insights into the industry and has allowed him to refine his innovative techniques in metallurgy.
Collaborations
Throughout his career, Yamashita has collaborated with notable coworkers such as Minoru Honjo and Kiyoshi Uwai. These partnerships have fostered an environment of creativity and progress, leading to advancements in steel production techniques and material science.
Conclusion
Katsutoshi Yamashita's contributions to high strength steel for springs exemplify the spirit of innovation. His patented method represents a significant advancement in material properties, paving the way for improved applications in various industries. With a strong foundation built on collaboration and experience, Yamashita stands out as an influential figure in the field of metallurgy.