Machiko Yokoyama

Title: **Innovative Contributions of Machiko Yokoyama in the Field of Wiping Sheets and Cosmetic Materials**

Introduction

Machiko Yokoyama, an accomplished inventor based in Tochigi-ken, Japan, has made significant strides in the development of innovative materials for everyday products. With a total of two patents to her name, Yokoyama's work particularly focuses on enhancing the functionality and effectiveness of wiping sheets and cosmetic materials.

Latest Patents

Yokoyama's latest patents reflect her penchant for innovation and practicality. One of her notable inventions is a **base material for wiping sheets**. This material is designed to support powder, characterized by a specific ratio of the average pore diameter of the surface when dry to the average particle diameter of the powder. The D/d ratio ranges from 0.03 to 30, with the base material having a bulk softness of 0.1 to 5 N/30 mm and a thickness of 0.3 to 5 mm. This innovation enhances the efficiency of wiping sheets in various cleaning applications.

Another significant patent introduced by Yokoyama is a **sheet pack that includes a moisture-permeable support** along with a film-forming cosmetic material. This unique combination ensures that the cosmetic material is at least partially supported by the moisture-permeable support. Notably, the moisture-permeable support boasts a specific yield point in its elongation-stress curve, which enhances its usability in cosmetic applications.

Career Highlights

Machiko Yokoyama is currently associated with Kao Corporation, a leading company known for its innovative products in beauty and personal care. Her role in the company emphasizes her commitment to research and development, further driving advancements in materials that enhance consumer products.

Collaborations

Throughout her career, Yokoyama has partnered with esteemed colleagues like Manabu Kaneda and Takashi Kawai. These collaborations have not only enriched her research experience but have also contributed to the successful development and implementation of groundbreaking inventions in the industry.

Conclusion

In summary, Machiko Yokoyama’s contributions to the fields of wiping sheets and cosmetic materials showcase her expertise and inventive spirit. With her patents leading the way, she has instrumentalized research and practicality, ultimately enhancing user experience in daily products. Her work continues to impact the industry positively, paving the path for future innovations.