Akitoshi Takahira

Title: Akitoshi Takahira and Moisture-Proof Paper Innovation.

Introduction

Akitoshi Takahira is an inventor associated with Kyoto, Japan, and Sumitomo Chemical Company, Limited. His listed patent work includes an aqueous emulsion designed for moisture-proof, water-repellent paper that remains easy to macerate. The supplied information credits him with 2 patents.

Latest Patents

The listed invention, “Aqueous Emulsion and Easily Macerating Moisture-Proof Paper,” describes an aqueous emulsion containing a copolymer of ethylene, vinyl chloride, and vinyl acetate, with a glass transition temperature from −15°C to 35°C. It also includes an emulsion of rosin ester with a softening point from 110°C to 150°C and a Gardner color scale no higher than 5, along with a wax emulsion with a melting point from 50°C to 100°C.

The emulsion is applied to at least one surface of base paper. According to the supplied description, the resulting paper combines moisture resistance and water repellency with easy maceration, while avoiding blocking.

Career Highlights

The available information identifies Takahira’s work with Sumitomo Chemical Company, Limited, and highlights his contribution to paper-coating technology. The described formulation brings together polymer, rosin ester, and wax components to address several performance requirements in coated paper.

Collaborations

Yuuzi Yoshii is listed as a coworker associated with Takahira’s patent work.

Conclusion

Akitoshi Takahira’s listed invention focuses on an aqueous coating that aims to make paper moisture-resistant and water-repellent while preserving its ability to macerate easily.