Shigeharu Naka

Title: Shigeharu Naka: Innovator in Cubic Boron Nitride Technology

Introduction

Shigeharu Naka is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of materials science, particularly in the preparation of cubic boron nitride. With a total of 2 patents, Naka's work has advanced the understanding and application of this important material.

Latest Patents

Naka's latest patents focus on methods for preparing sintered bodies containing cubic boron nitride. One of the disclosed methods involves pyrolyzing borazine and/or a borazine derivative to obtain boron nitride. This process includes mixing the boron nitride with a catalyst composed of a metal and/or metallic compound. The mixture is then reacted at a pressure of 3 GPa or more and at a temperature of 700°C or more. Another method also involves similar steps but emphasizes the removal of the catalyst from the formed product. The conversion rate into cubic boron nitride achieved with these methods is as high as 100%, resulting in highly pure and fine cubic boron nitride.

Career Highlights

Shigeharu Naka is associated with Toshiba Tungaloy Co., Ltd., where he has been instrumental in developing innovative materials and processes. His expertise in cubic boron nitride has positioned him as a key figure in the industry.

Collaborations

Naka has collaborated with Shin-ichi Hirano, contributing to advancements in their field through shared knowledge and expertise.

Conclusion

Shigeharu Naka's work in the preparation of cubic boron nitride has made a significant impact on materials science. His innovative methods and collaborations continue to push the boundaries of technology in this area.