Yoshihiro Irizato

Title: The Innovations of Yoshihiro Irizato

Introduction

Yoshihiro Irizato, an esteemed inventor located in Kanagawa, Japan, has made significant contributions to the field of polymer chemistry. With a remarkable portfolio of eight patents, he is best known for his innovative production processes for polysuccinimide and cross-linked polyaspartic acid resins. His work not only advances materials science but also addresses environmental considerations through the development of biodegradable products.

Latest Patents

Among his latest patents, the production process of polysuccinimide stands out. This process involves several critical steps: first, aspartic acid and an acidic catalyst are mixed and heated to create a low molecular weight polymer mixture. The acidic catalyst is then separated to convert the liquid polymer phase into a solid mixture. Finally, solid-state polymerization is conducted on the obtained solid, resulting in high molecular weight polysuccinimide with a weight average molecular weight of 40,000 or higher.

Another important patent is for the production process of cross-linked polysuccinimide resin. This method aims to produce a cross-linked polyaspartic acid resin with high productivity, biodegradability, and significant water absorbency. The process includes various steps such as reacting a dispersed polysuccinimide with a cross-linking agent and controlling the hydrolysis of imide rings to create the desired cross-linked resin.

Career Highlights

Yoshihiro's career is highlighted by his collaborations with notable companies, including Mitsui Chemicals, Inc. and Mitsui Toatsu Chemicals, Incorporated. These collaborations have greatly influenced his research and led to innovative advancements in material production processes.

Collaborations

Throughout his career, Yoshihiro has worked alongside talented colleagues such as Makoto Sukegawa and Toshio Katoh. These collaborations have allowed for the exchange of ideas and techniques, enriching his contributions to the field of polymer science.

Conclusion

Yoshihiro Irizato's innovative approaches to polymer production processes exemplify how inventors can bridge the gap between scientific research and practical applications. His patents not only contribute to advancements in materials science but also emphasize the importance of sustainability. Through his work, Irizato continues to inspire future generations of inventors and researchers in the world of innovations.