Toshio Ohba

Title: Toshio Ohba: Innovator in Ferritic Heat-Resistant Steel

Introduction

Toshio Ohba is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the field of materials science, particularly in the development of ferritic heat-resistant steel. His innovative work has implications for various industrial applications, enhancing the performance and durability of materials used in high-temperature environments.

Latest Patents

Toshio Ohba holds a patent for a ferritic heat-resistant steel and the method for producing it. The invention focuses on improving the creep rupture ductility of the steel without compromising its creep strengths. The chemical composition of this steel includes C: 0.03 to 0.15, Si: 0 to 0.8, Mn: 0.1 to 0.8, Cr: 8.0 to 11.5, Mo: 0.2 to 1.5, W: 0.4 to 3.0, V: 0.1 to 0.4, Nb: 0.02 to 0.12, and N: 0.02 to 0.10, with the balance being iron and inevitable impurities. This steel features a tempered martensite microstructure, which allows for improved ductility under load at high temperatures.

Career Highlights

Toshio Ohba is affiliated with the National Institute for Materials Science, where he conducts research and development in advanced materials. His work has been recognized for its innovative approach to enhancing the properties of heat-resistant materials, making significant strides in the field.

Collaborations

Toshio Ohba has collaborated with notable colleagues, including Kazuhiro Kimura and Kota Sawada. Their joint efforts have contributed to advancements in materials science and the development of new technologies.

Conclusion

Toshio Ohba's contributions to the field of ferritic heat-resistant steel exemplify the importance of innovation in materials science. His patented work not only improves the performance of steel but also paves the way for future advancements in high-temperature applications.