Tadao Katagiri

Title: Tadao Katagiri: Innovator in Seamless Steel Pipe Technology

Introduction

Tadao Katagiri is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to the field of materials engineering, particularly in the development of high-strength seamless steel pipes. His innovative work has led to advancements that enhance the durability and performance of pipeline materials.

Latest Patents

One of Tadao Katagiri's notable patents is for a "Thick-walled high-strength seamless steel pipe with excellent sour resistance for pipeline, and process for producing same." This invention provides a heavy wall and high strength seamless steel pipe that exhibits exceptional sour resistance. The patent details a quenching and tempering treatment that adjusts the yield strength to exceed 450 MPa. Additionally, it specifies that the Vickers hardness HV5, measured at either the outermost or innermost side of the pipe under a 5 kgf load, should be 250 HV5 or less.

Career Highlights

Tadao Katagiri is associated with JFE Steel Corporation, a leading company in the steel industry. His work at JFE Steel has been instrumental in pushing the boundaries of steel pipe technology. His innovative approaches have not only contributed to the company's success but have also set new standards in the industry.

Collaborations

Throughout his career, Tadao Katagiri has collaborated with esteemed colleagues, including Yasuhide Ishiguro and Mitsuo Kimura. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Tadao Katagiri's contributions to the field of seamless steel pipe technology exemplify the impact of innovation in engineering. His patented work continues to influence the industry, ensuring the reliability and strength of pipeline materials.