Yoshio Itoh

Title: Inventor Yoshio Itoh: Innovations in Copper Titanium Alloys

Introduction

Yoshio Itoh, based in Nagoya, Japan, is a notable inventor recognized for his significant contributions in the field of materials engineering, specifically focusing on the development of age-hardening copper titanium alloys. With a total of two patents to his name, Itoh's work reflects a deep understanding of alloy properties and their applications in various industries.

Latest Patents

Itoh's latest innovations include two distinct patents that demonstrate his expertise and innovative approach. The first patent is for an "Age-hardening copper titanium alloy," which contains 2 to 6% by weight of titanium. This alloy is characterized by a substantially fully solution heat-treated structure with an average crystal grain size not exceeding 25 microns. Notably, when cold-rolled after solution heat treatment, the alloy maintains an elongation within 20% in both rolling and perpendicular directions, ensuring that the bend radius to thickness ratios in both directions are substantially equal.

The second patent is focused on the "Process for producing an age-hardening copper titanium alloy strip." This process encompasses several steps, including preparing a copper titanium alloy melt, casting, hot-working, cold-working, and annealing the alloy. The solution heat treatment of the annealed alloy is executed with precision, ensuring it is terminated before a complete solid solution of a precipitated secondary phase occurs, allowing the master phase to maintain its average crystal grain size. The alloy's titanium content remains consistent at 2 to 6% by weight, contributing to its enhanced properties.

Career Highlights

Yoshio Itoh is affiliated with NGK Insulators, Inc., a company recognized for its advancements in insulating materials and technologies. His work there has significantly impacted the field of materials science, particularly in developing innovative solutions that enhance the performance and durability of alloys.

Collaborations

Throughout his career, Itoh has collaborated with esteemed coworkers, including Kazuo Ikushima and Toshiaki Ishihara. These partnerships have fostered an environment of innovation, allowing them to share insights and collectively advance their research in alloy development.

Conclusion

Yoshio Itoh exemplifies the spirit of innovation through his work on copper titanium alloys. His patents not only highlight his dedication to material science but also contribute to the industry's growth by providing solutions that meet modern technological demands. The strides he has made in this field reflect a commitment to excellence and a pioneering approach to material properties, setting a benchmark for future innovations.