Rie Umebayashi

Title: Rie Umebayashi: Innovator in Coated Steel Technology

Introduction

Rie Umebayashi is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of coated steel technology, holding a total of 2 patents. Her work focuses on enhancing the properties of steel sheets through innovative coating methods.

Latest Patents

Umebayashi's latest patents include a hot-dip Zn–Al alloy coated steel sheet and a method for producing it. This coated steel sheet exhibits a beautiful coating appearance with metallic luster, avoiding the formation of spangles while providing excellent blackening resistance. The coating consists of a hot-dip Zn–Al alloy layer containing specific percentages of aluminum, magnesium, nickel, and zinc. The manufacturing method involves dipping the steel sheet into a coating bath and cooling it at a controlled rate. Another notable patent is for a surface-treated galvanized steel sheet that offers superior corrosion resistance and appearance after press forming. This sheet is produced using a specially formulated aqueous surface-treatment liquid containing various compounds, ensuring it is chromate-free.

Career Highlights

Throughout her career, Umebayashi has worked with notable companies such as JFE Steel Corporation and JFE Galvanizing & Coating Co., Ltd. Her experience in these organizations has allowed her to develop and refine her innovative approaches to steel coating technologies.

Collaborations

Umebayashi has collaborated with esteemed colleagues, including Satoru Ando and Hideo Koumura. These partnerships have contributed to her success and the advancement of her inventions.

Conclusion

Rie Umebayashi's contributions to coated steel technology demonstrate her innovative spirit and dedication to improving material properties. Her patents reflect a commitment to excellence in engineering and materials science.