Ryo-ma Yamaguma

Title: Ryo-ma Yamaguma: Innovator in Nickel Powder Production

Introduction

Ryo-ma Yamaguma is a notable inventor based in Niihama, Japan. He has made significant contributions to the field of materials science, particularly in the production of nickel powder. His innovative methods have the potential to impact various industries, including electronics and battery manufacturing.

Latest Patents

Yamaguma holds a patent for a method of producing nickel powder. This patent describes a process where a nickel sulfate amine complex liquid and nickel powder with a particle diameter ranging from 0.1 µm to 300 µm are introduced into a reaction container. Hydrogen gas is continuously supplied while maintaining the temperature between 150°C to 250°C and the pressure set between 2.5 MPa to 3.5 MPa. This process allows for the reduction of nickel ions in the nickel sulfate amine complex liquid to nickel, which then deposits on the surfaces of the nickel powder. The reacted slurry is subsequently transferred to a pressurized storage container, where the pressure is reduced before extraction.

Career Highlights

Yamaguma is currently employed at Sumitomo Metal Mining Company, Ltd., where he continues to develop innovative solutions in materials production. His work has garnered attention for its efficiency and potential applications in various sectors.

Collaborations

Yamaguma collaborates with talented colleagues, including Kazuyuki Takaishi and Shin-ichi Heguri. Their combined expertise fosters a creative environment that enhances the development of new technologies.

Conclusion

Ryo-ma Yamaguma is a pioneering inventor whose work in nickel powder production exemplifies innovation in materials science. His contributions are poised to influence multiple industries, showcasing the importance of research and development in advancing technology.