Company Filing History:
Years Active: 1991-1993
Title: Koichi Kubota: Innovator in Synthetic Fiber Technology
Introduction
Koichi Kubota is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of synthetic fiber technology, holding 2 patents that showcase his innovative approach to materials science.
Latest Patents
His latest patents include a dyed synthetic fiber comprising silver-substituted zeolite and copper. This invention describes a dyed synthetic fiber that possesses antibacterial and antifungal properties. The fiber contains 0.01 to 20 weight % of a silver-substituted zeolite and 0.001 to 1.0 weight % of a substantially water-insoluble copper compound. The copper compound is present independently of zeolite particles in the fiber. The preparation process involves incorporating the silver-substituted zeolite in a monomer or polymerization mixture before polymerization is complete, followed by the addition of the copper compound before spinning the fiber. The resulting dyed fiber retains a high level of antibacterial and antifungal properties.
Another significant patent is for a high-tenacity conjugated fiber and the process for its preparation. This conjugated fiber features a sheath-core structure, with a polyester core component primarily made of polyethylene terephthalate and a polyamide sheath component mainly composed of polyhexamethylene adipamide. This fiber exhibits excellent mechanical properties, including high tenacity, high modulus, and improved dimensional stability. It also shows enhanced adhesion to rubber, particularly at high temperatures, and high fatigue resistance, making it a valuable industrial material.
Career Highlights
Koichi Kubota is associated with Toray Industries, Inc., a leading company in the field of advanced materials. His work has significantly impacted the development of innovative synthetic fibers that meet various industrial needs.
Collaborations
He has collaborated with notable coworkers, including Isoo Saito and Takuji Sato, contributing to advancements in fiber technology.
Conclusion
Koichi Kubota's contributions to synthetic fiber technology through his innovative patents demonstrate his expertise and commitment to advancing material science. His work continues to influence the industry and pave the way for future innovations.