Eiji Tsunematsu

Title: Eiji Tsunematsu: Innovator in Insulating Urethane-forming Compositions

Introduction

Eiji Tsunematsu is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of insulating materials, particularly through his innovative urethane-forming curable compositions. His work has implications for the protection of electric and electronic parts, ensuring their durability and performance under various conditions.

Latest Patents

Tsunematsu holds 1 patent for his invention titled "Insulating Urethane-forming Curable Compositions and Insulated Electric." This patent describes a urethane-forming curable composition characterized by low viscosity, allowing it to flow into minute cavities of electric or electronic devices. The composition provides flexible curing products that exhibit excellent heat resistance, hydrolysis resistance, and moistureproofness. It effectively prevents changes in hardness and reductions in insulating performance over time, even in severe conditions. The formulation includes a hydrogenated OH-containing liquid polyisoprene and a polyester polyol, which is liquid at ordinary temperatures and consists of fatty acid and polyhydric alcohol units.

Career Highlights

Throughout his career, Eiji Tsunematsu has worked with several companies, including San-yu Resin and Itoh Seiyu. His experience in these organizations has contributed to his expertise in developing innovative materials for the electronics industry.

Collaborations

Tsunematsu has collaborated with notable coworkers such as Naokatsu Hisanaga and Kenji Ueda. Their combined efforts have likely enhanced the development and application of his patented technologies.

Conclusion

Eiji Tsunematsu's contributions to insulating materials through his innovative urethane-forming compositions demonstrate his commitment to advancing technology in the electronics sector. His work continues to impact the reliability and performance of electric and electronic devices.