Takenori Umeki

Title: Innovations of Takenori Umeki

Introduction

Takenori Umeki is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced alloy films and highly pure titanium. With a total of 3 patents to his name, Umeki's work has implications for various industrial applications.

Latest Patents

One of his latest patents is for a sputtering alloy target and method of producing an alloy film. This invention involves a sputtering target that comprises 15 to 50 atomic percent of molybdenum or tungsten, with the remaining atomic percent being tantalum and concomitant impurities. This innovation provides electrical wiring with very low specific resistance, excellent workability, and stability, enabling high definition and high integration of semiconductor devices. It is considered to be industrially very useful. Another significant patent is for highly pure titanium, which contains not more than 200 ppm of oxygen and not more than 30 ppm each of iron, nickel, and chromium. The process for preparing this titanium involves melting crude titanium obtained by molten salt electrolysis in a high vacuum of 5 × 10^-5 mbar or less.

Career Highlights

Umeki is associated with Kabushiki Kaisha Toshiba, a leading company in technology and electronics. His work at Toshiba has allowed him to focus on innovative solutions that enhance the performance and reliability of materials used in various applications.

Collaborations

He has collaborated with notable coworkers such as Hideo Ishihara and Kazumi Shimotori, contributing to a dynamic environment of innovation and research.

Conclusion

Takenori Umeki's contributions to the field of materials science through his patents reflect his commitment to advancing technology. His work continues to influence the development of high-performance materials in various industries.