Kazuo Torii

Title: Kazuo Torii: Innovator in Mixed-Layer Silicates and Composite Oxides

Introduction

Kazuo Torii is a notable inventor based in Sendai, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative mixed-layer silicates and composite oxides. With a total of 4 patents to his name, Torii's work has implications for various industrial applications.

Latest Patents

One of Torii's latest patents is for a synthetic mixed-layer silicate and method for its preparation. This novel synthetic mixed-layer silicate consists of layers of serpentine and saponite, each with a specified chemical composition. It exhibits excellent dispersibility in water, forming a colloidal dispersion that can be converted into a gel, making it useful as a gelating agent with thixotropic properties. The preparation process involves several steps, including creating an acidic aqueous solution, alkalifying it, collecting precipitates, and subjecting the slurry to hydrothermal treatment.

Another significant patent involves a hydrous composite cerium-phosphorus oxide for the immobilization of strontium ions. This innovative composite oxide is characterized by a unique chemical composition and X-ray diffractometric pattern. It serves as an effective adsorbent or immobilizing agent for strontium ions in aqueous solutions, such as those found in radioactive waste from atomic power plants. The preparation process includes a precipitation reaction and heat treatment under hydrothermal conditions to enhance its adsorption capacity.

Career Highlights

Throughout his career, Kazuo Torii has worked with various organizations, including Co-op Chemical Co., Ltd. and served as the Director-General of the Agency of Industrial Science and Technology. His leadership and expertise have contributed to advancements in industrial science and technology in Japan.

Collaborations

Torii has collaborated with notable colleagues, including Takashi Iwasaki and Hiromichi Hayashi. Their combined efforts have furthered research and development in the field of materials science.

Conclusion

Kazuo Torii's innovative work in mixed-layer silicates and composite oxides has made a significant impact on materials science. His patents reflect a commitment to advancing technology and addressing industrial challenges.