Kazuharu Itoh

Title: Kazuharu Itoh: Innovator in Propylene-based Polymers

Introduction

Kazuharu Itoh is a notable inventor based in Oita, Japan. He has made significant contributions to the field of polymer science, particularly in the development of propylene-based polymers. With a total of 3 patents to his name, Itoh's work has advanced the understanding and production of high-performance polymers.

Latest Patents

Itoh's latest patents focus on a propylene-based polymer characterized by several key features. The polymer has a xylene-extraction insoluble portion (XI) of 99.0 wt % or greater. Additionally, it boasts an isotactic pentad ratio (IP) of 98.0% or greater, as measured by carbon nuclear magnetic resonance spectroscopy. The isotactic average chain length (N) is 500 or greater, and the total amount of fractions obtained by column separation of the xylene insolubles, with an average chain length (N) of 800 or greater, accounts for 10 wt % or more of the entirety. Furthermore, the polymer composition is prepared by combining this propylene-based polymer with at least a nucleating agent in the range of 0.05-15 wt %. Itoh has also developed a polymerization catalyst component that facilitates the production of such a propylene-based polymer.

Career Highlights

Throughout his career, Kazuharu Itoh has worked with prominent companies, including Showa Denko K.K. and Showa Denko Kabushiki Kaisha. His expertise in polymer science has allowed him to contribute to various innovative projects and advancements in the industry.

Collaborations

Itoh has collaborated with notable colleagues, including Hisayoshi Yanagihara and Kazuyuki Watanabe. These collaborations have further enriched his work and contributed to the development of advanced polymer technologies.

Conclusion

Kazuharu Itoh's contributions to the field of propylene-based polymers demonstrate his innovative spirit and dedication to advancing polymer science. His patents and collaborations reflect a commitment to excellence in research and development.