Company Filing History:
Years Active: 1989
Title: Yazuru Kataoka: Innovator in Steel Rail Heat Treatment
Introduction
Yazuru Kataoka is a prominent inventor based in Tokyo, Japan. He is known for his innovative contributions to the field of metallurgy, particularly in the heat treatment of steel rails. His work has significant implications for the railway industry, enhancing the durability and performance of rail infrastructure.
Latest Patents
Kataoka holds a patent for a method for heat-treating a steel rail head. This method involves heating the steel rail head to the austenization temperature, followed by cooling it with a hot water jet until the surface temperature drops to below 420°C. Subsequently, the rail head is cooled using an air jet to reach the pearlite transformation temperature, resulting in a uniform and fine pearlite structure on the surface. This innovative approach may also include a preliminary cooling step using a water spray to lower the surface temperature to below 530°C before applying the hot water jet.
Career Highlights
Yazuru Kataoka is associated with NKK Corporation, a leading company in the steel and railway sectors. His expertise in heat treatment processes has contributed to advancements in the manufacturing and maintenance of steel rails, ensuring safety and efficiency in railway operations.
Collaborations
Kataoka has worked alongside notable colleagues such as Toyokazu Teramoto and Akio Fujibayashi. Their collaborative efforts have furthered research and development in the field of steel treatment technologies.
Conclusion
Yazuru Kataoka's innovative methods for heat-treating steel rail heads represent a significant advancement in railway technology. His contributions continue to impact the industry positively, ensuring safer and more reliable rail systems.