This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Teijin Fibers Limited. Active years: 2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2012
Title: Kei Tachibana: Innovator in Cationic Dyeable Polyester
Introduction
Kei Tachibana is a notable inventor based in Matsuyama, Japan. He has made significant contributions to the field of materials science, particularly in the development of cationic dyeable polyesters. His innovative work has led to advancements that enhance the dyeing process of polyester fibers.
Latest Patents
Tachibana holds a patent for a "Normal pressure cationic dyeable polyester and fiber." This invention addresses the need for a polyester that can be dyed under normal pressure while maintaining high strength. The polyester is characterized as a copolymerized polyester with a main repeating unit that includes ethylene terephthalate. It incorporates a metal salt of sulfoisophthalic acid and a phosphonium salt of sulfoisophthalic acid, ensuring it meets specific mathematical criteria. The copolymerized polyester has a glass transition temperature ranging from 70 to 85°C and an intrinsic viscosity between 0.55 to 1.00 dL/g. This innovation allows for the production of high-quality polyester fibers through melt spinning.
Career Highlights
Tachibana is associated with Teijin Fibers Limited, a company known for its advancements in fiber technology. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the industry. His patent reflects his commitment to improving the properties of synthetic fibers.
Collaborations
Throughout his career, Tachibana has collaborated with esteemed colleagues such as Tetsuya Chikatsune and Kenji Kawamura. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Kei Tachibana's contributions to the field of cationic dyeable polyesters exemplify the impact of innovative thinking in materials science. His patent for a normal pressure cationic dyeable polyester showcases his dedication to enhancing fiber technology. Through his work at Teijin Fibers Limited, Tachibana continues to influence the industry and drive advancements in textile materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile