Kohji Tsukuma

Title: Kohji Tsukuma: Innovator in Silicon Nitride Manufacturing

Introduction

Kohji Tsukuma is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of materials science, particularly in the manufacturing of high-purity silicon nitride powder. His innovative methods have implications for various industrial applications.

Latest Patents

Kohji Tsukuma holds a patent for a "Method of manufacturing high-purity silicon nitride powder." This patent describes a process that includes preparing a nitrogen-containing silane from tetra-amide-monosilane and silicon imide. The method involves heat-treating the silane in the presence of ammonia at temperatures above 400°C for at least two hours. The resulting silicon nitride has a chlorine content of less than 0.05 weight percent and a nitrogen content of over 38 weight percent.

Career Highlights

Tsukuma is associated with Toyo Soda Manufacturing Co., Ltd., where he has applied his expertise in materials science. His work has contributed to advancements in the production of high-purity materials, which are essential for various technological applications.

Collaborations

Kohji Tsukuma has collaborated with notable colleagues such as Kiyoshi Kasai and Takaaki Tsukidate. These partnerships have fostered innovation and enhanced the research and development efforts within their field.

Conclusion

Kohji Tsukuma's contributions to the manufacturing of high-purity silicon nitride powder exemplify the impact of innovative thinking in materials science. His work continues to influence the industry and pave the way for future advancements.