Company Filing History:
7 out of 399 
1 out of 50 
Years Active: 2018-2025
Title: Raisa Grigorieva: Innovator in Coated Steel Technology
Introduction
Raisa Grigorieva is a prominent inventor based in Metz, France, known for her significant contributions to the field of coated steel technology. With a total of seven patents to her name, she has made remarkable advancements in the manufacturing processes of pre-coated steel parts.
Latest Patents
Among her latest patents, Raisa has developed a hot formed pre-coated steel part. This innovation includes a steel sheet precoated with a metallic coating that consists of 2.0 to 24.0% by weight of zinc and 1.1 to 7.0% by weight of silicon. Additionally, it may contain magnesium and other elements in specific proportions. The microstructure of the steel after hot forming is designed to be martensitic or martensitic-bainitic, ensuring enhanced durability and performance. Another notable patent is for a pre-coated steel sheet, which also features a metallic coating with similar composition requirements, excluding In and Sn, thus optimizing its properties for various applications.
Career Highlights
Raisa has had a successful career, working with leading companies in the steel industry. She has been associated with ArcelorMittal and ArcelorMittal Investigación y Desarrollo, S.L., where she has honed her expertise in steel technology and innovation. Her work has significantly impacted the development of advanced materials in the