Katsunobu Sato

Title: Innovations of Katsunobu Sato

Introduction

Katsunobu Sato is a notable inventor based in Minoo, Japan. He has made significant contributions to the field of dye chemistry, particularly in the development of innovative compounds for dyeing hydrophobic fibers. With a total of 2 patents, Sato's work has garnered attention for its practical applications in the textile industry.

Latest Patents

Sato's latest patents include a compound known as 2-Cyano-4-nitro-6-chlorophenylazo 3-acetyl. This compound is characterized by a specific formula where R¹ is methyl or ethyl, R² and R³ are each C₅ or C₆ alkyl, and Z is chlorine. It is designed for use as a blue disperse dye for hydrophobic fibers, either alone or in combination with anthraquinone. This compound offers a low-cost alternative to anthraquinone while providing superior stability in dye baths and excellent dyeability. Additionally, Sato has developed azo disperse dye mixtures, which consist of at least two members selected from a specific group of compounds. These mixtures are particularly useful for dyeing polyester fibers and exhibit good dyeability and build-up properties.

Career Highlights

Katsunobu Sato is associated with Sumitomo Chemical Company, Limited, where he has been instrumental in advancing dye technology. His work has not only contributed to the company's portfolio but has also impacted the broader textile industry by enhancing dye performance and cost-effectiveness.

Collaborations

Sato has collaborated with notable coworkers such as Yoshihisa Sueda and Yoshiro Izutsutani. Their combined expertise has fostered innovation and development in the field of dye chemistry.

Conclusion

Katsunobu Sato's contributions to dye technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative approaches continue to influence the dyeing processes for hydrophobic fibers, showcasing the importance of research and development in textile applications.