Keiichi Hattori

Title: Keiichi Hattori: Innovator in High-Strength Steel Production

Introduction

Keiichi Hattori is a notable inventor based in Tokai, Japan. He has made significant contributions to the field of materials science, particularly in the production of high-strength steel. His innovative approach has led to advancements that enhance the weldability and toughness of steel, making it more suitable for various applications.

Latest Patents

Hattori holds a patent for a method of producing high-strength steel that boasts improved weldability. This steel has a tensile strength of 80 kgf/mm.sup.2 or more and is produced through one-line quenching or on-line quenching and tempering. The resulting steel exhibits excellent low-temperature toughness and eliminates the need for high-temperature preheating prior to welding. The specific composition of this high-strength steel includes: C=0.04% to 0.11%; Si ≤ 1.0%; Mn=0.5% to 2.00%; Mo=0.10% to 1.0%; Nb=0.005% to 0.05%; B=0.0009% to 0.0012%; Al ≤ 0.1%; and N ≤ 0.0060%.

Career Highlights

Hattori is associated with Nippon Steel Corporation, a leading company in the steel industry. His work has been instrumental in developing materials that meet the demands of modern engineering and construction. His innovative methods have positioned him as a key figure in the advancement of steel production technologies.

Collaborations

Throughout his career, Hattori has collaborated with esteemed colleagues such as Ryota Yamaba and Yukio Tsuda. These partnerships have fostered an environment of innovation and have contributed to the successful development of new materials and methods in the steel industry.

Conclusion

Keiichi Hattori's contributions to high-strength steel production exemplify the impact of innovation in materials science. His patented methods and collaborative efforts continue to influence the industry, paving the way for future advancements.