Company Filing History:
Years Active: 2001-2008
Title: **Shigeharu Ukai: A Pioneer in High-Temperature Steel Innovations**
Introduction
Shigeharu Ukai, based in Higashiibaraki-gun, Japan, is a notable inventor with a strong focus on developing advanced steel materials. He holds five patents that contribute significantly to the field of metallurgical engineering, particularly in high-temperature applications.
Latest Patents
Ukai's recent innovations include two pivotal patents:
1. **Method for Producing Dispersed Oxide Reinforced Ferritic Steel**: This method elaborates on creating ferritic steel characterized by a coarse grain structure and excellent high-temperature creep strength. The process involves mixing alloy powders with Yttrium Oxide (Yo) powder, mechanically alloying the mixture, hot extruding the alloyed powder, and conducting final heat treatments to enhance its properties. Key components include carbon, chromium, tungsten, titanium, and yttrium, which together ensure that the carbon concentration remains optimal throughout the manufacturing process.
2. **Method of Manufacturing Oxide Dispersion Strengthened Martensitic Steel**: This patent details a technique to produce high-temperature strength martensitic steel with finely dispersed oxide particles. The approach utilizes mechanical alloying and careful control of powder ratios to maintain the integrity of the material during hot extrusion. This ensures a high density of well-distributed oxide particles within the steel, leading to improved performance at elevated temperatures.
Career Highlights
Shigeharu Ukai is associated with the Japan Nuclear Cycle Development Institute, where he applies his expertise to advance innovations in steel that can withstand the rigors of high-temperature environments. His contributions have positioned him as a leading figure in the field of materials science, particularly in applications relevant to nuclear industries.
Collaborations
Throughout his career, Ukai has collaborated with fellow researchers such as Satoshi Ohtsuka and Takeji Kaito. Their combined efforts have fostered a collaborative environment that encourages the exchange of ideas and enhances the development of groundbreaking technologies in steel materials.
Conclusion
In summary, Shigeharu Ukai's work exemplifies significant advancements in high-temperature steel engineering. Through his innovative patents and collaborative efforts, he continues to influence the direction of research in metallurgy, making substantial contributions to the industry and research institutions alike. His dedication to improving material properties paves the way for future innovations in high-performance steels.