Kumie Yamana

Title: Kumie Yamana: Innovating Electret Material Production in Osaka

Introduction

Kumie Yamana is an innovative inventor based in Osaka, Japan, recognized for her contributions to the field of materials science. With a focus on enhancing electret materials, her work showcases a blend of creativity and technical expertise that has led to the development of a unique patent.

Latest Patents

Yamana's notable patent is a "Process for production of electret material." This invention provides a method to produce electret materials that boast excellent thermal resistance and charge retentivity. The process includes three main steps: an irradiation step, a formation step, and a charging step. In the irradiation step, a dispersion containing fine polytetrafluoroethylene particles is subjected to gamma radiation. This is followed by the formation step, where the irradiated dispersion is applied to an electrode plate and dried, resulting in the sintering of the polytetrafluoroethylene particles into a cohesive layer. Lastly, in the charging step, the surface of the polytetrafluoroethylene layer undergoes a charging treatment, completing the innovative process.

Career Highlights

Yamana is associated with Nitto Denko Corporation, a company well-regarded for its advanced materials. During her career, she has exhibited a commitment to research and development, striving to create materials that perform under extreme conditions.

Collaborations

A notable collaborator of Kumie Yamana is Seiichi Takaoka. As a woman in a predominantly male field, Yamana stands as an exemplary figure, demonstrating the essential role of diverse perspectives in driving innovation forward.

Conclusion

Kumie Yamana's dedication to the advancement of electret materials through her patented processes positions her as a significant inventor in Japan. Her work not only enhances material performance but also contributes to the broader field of materials science, paving the way for future innovations.