Masanao Kohashi

Title: Masanao Kohashi: Innovator in Polyester Fiber Technology

Introduction

Masanao Kohashi is a notable inventor based in Tsuruga, Japan. He has made significant contributions to the field of polyester fibers, particularly in their application for rubber reinforcement. His innovative work has led to advancements that benefit various industries.

Latest Patents

Kohashi holds a patent for "Polyester fibers for rubber reinforcement and dipped cords using same." This patent describes a polyester fiber that contains polyethylene terephthalate at 90 mol % or higher. The fiber exhibits an intrinsic viscosity (IV) of 0.85 dl/g or higher, along with several key characteristics. These include a strength of at least 6.0 cN/dtex, a specific strength and breaking elongation ratio, a monofilament linear density of 5.0 dtex or less, and a main dispersion peak temperature of loss tangent in dynamic viscoelasticity measurements at 110 Hz of 147.0°C or lower. Additionally, the patent details a polyester dipped cord created by twisting base yarns made from the polyester fiber, which undergoes a dip treatment to achieve high tenacity and low elongation at specific loads.

Career Highlights

Kohashi is associated with Toyo Boseki Kabushiki Kaisha, a company known for its advancements in textile technology. His work has not only contributed to the company's reputation but has also positioned him as a key figure in the development of innovative materials.

Collaborations

Kohashi has collaborated with notable coworkers, including Katsutoshi Imaoka and Mitsuhiro Sakuda. Their combined expertise has fostered an environment of innovation and creativity within their projects.

Conclusion

Masanao Kohashi's contributions to polyester fiber technology exemplify the impact of innovation in material science. His patent for polyester fibers and dipped cords showcases his commitment to advancing industry standards. Kohashi's work continues to influence the field and inspire future developments.