Katsumi Tokumoto

Title: Innovations of Katsumi Tokumoto

Introduction

Katsumi Tokumoto is a notable inventor based in Tokuyama, Japan. He has made significant contributions to the field of polyurethane foam production, holding a total of 7 patents. His work focuses on developing innovative catalyst compositions and methods for producing rigid polyurethane foams.

Latest Patents

Among his latest patents, Tokumoto has developed a catalyst composition for the production of rigid polyurethane foam and isocyanurate-modified rigid polyurethane foam. This invention utilizes a catalyst composition comprising specific amine compounds and a raw material-blended composition that includes a polyol component and water. The patent details the chemical structure of the compounds involved, emphasizing the importance of hydrocarbon groups and organic acid groups in the process. Another significant patent outlines a method for producing rigid polyurethane foam by reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, specifically using HFC-245fa and HFC-365mfc.

Career Highlights

Katsumi Tokumoto is currently associated with Tosoh Corporation, where he continues to innovate in the field of polymer chemistry. His expertise in catalyst compositions has positioned him as a key figure in the development of advanced materials.

Collaborations

Throughout his career, Tokumoto has collaborated with notable colleagues such as Yutaka Tamano and Shuichi Okuzono. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Katsumi Tokumoto's contributions to the field of polyurethane foam production highlight his innovative spirit and dedication to advancing material science. His patents reflect a deep understanding of chemical processes and a commitment to developing effective solutions in the industry.