Company Filing History:
2 out of 105 
2 out of 16 
1 out of 305 
Years Active: 1989-1992
Title: Innovator Shosuke Oku: Advancements in Polyester Colorants
Introduction
Shosuke Oku, an accomplished inventor based in Sabae, Japan, has made significant contributions to the field of colorants and polyester fibers. With two patents to his name, his work reflects a commitment to improving materials through innovation, particularly in the textile industry.
Latest Patents
Oku's latest patents focus on groundbreaking processes for creating heat-resistant colorants for mass-coloring polyester. His first patent details a method for producing a colorant that incorporates 100 parts of pigments and/or dyes combined with a liquid aliphatic polyester dispersing medium. This medium, which has a specific viscosity and hydroxyl value, allows for excellent blending and dispersion without degrading the polyester. This innovation leads to fibers that exhibit high stability during manufacturing and uniform quality.
The second patent centers on a black liquid colorant for dope dyeing polyester fibers, featuring a unique formulation of carbon black and a liquid dispersion medium. This gives rise to deep black polyester fibers that maintain their integrity throughout the dyeing process, ensuring both aesthetic appeal and durability.
Career Highlights
Shosuke Oku has worked with leading companies in the industry, including Toyo Ink Manufacturing Co., Ltd. and Nippon Ester Co., Ltd. His experience in these organizations has provided him with a strong foundation in the development of advanced materials, particularly in the realm of colorants for synthetic fibers.
Collaborations
Throughout his career, Oku has collaborated with notable figures in the field, including Fumio Hirota and Tsutomu Kado. These partnerships have likely influenced the innovative approaches seen in his patents, fostering an environment of creativity and advancement.
Conclusion
Shosuke Oku represents the spirit of innovation in the textile industry. Through his patents, he has set new standards for colorant formulations and polyester fibers, enhancing quality and performance in manufacturing. As research and development continue to evolve, Oku's contributions will undoubtedly remain influential in shaping the future of synthetic materials.