Keigo Nojiri

Title: Keigo Nojiri: Innovator in Beryllium-Copper Alloys

Introduction

Keigo Nojiri is a notable inventor based in Handa, Japan. He has made significant contributions to the field of materials science, particularly in the production of beryllium-copper alloys. His innovative processes have implications for various industrial applications.

Latest Patents

Keigo Nojiri holds a patent for the production of beryllium-copper alloys. The patent describes a process that involves casting a beryllium-copper alloy composed of 1.00 to 2.00% by weight of beryllium (Be), 0.18 to 0.35% by weight of cobalt (Co), with the balance being copper (Cu). The process includes rolling the cast alloy, annealing it at temperatures between 500°C to 800°C for 2 to 10 hours, and then cold rolling the alloy at a reduction rate of not less than 40%. This is followed by a second annealing and further cold rolling to achieve the desired thickness. The resulting beryllium-copper alloy has an average grain size of not more than 20 micrometers, with a natural logarithm of the coefficient of variation of the grain size not exceeding 0.25.

Career Highlights

Keigo Nojiri is associated with NGK Insulators, Inc., where he applies his expertise in materials engineering. His work has led to advancements in the production techniques of beryllium-copper alloys, enhancing their properties and applications in various industries.

Collaborations

One of his notable collaborators is Takaharu Iwadachi. Together, they have worked on projects that focus on improving the quality and efficiency of alloy production.

Conclusion

Keigo Nojiri's contributions to the field of beryllium-copper alloys exemplify the importance of innovation in materials science. His patented processes not only advance industrial applications but also highlight the collaborative efforts in research and development.