This inventor holds 2 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignee: Jfe Steel Corporation. Active years: 2025-2026.
Company Filing History:
Years Active: 2025-2026
Title: Mayumi Ojima: Innovator in High-Strength Steel Technology
Introduction
Mayumi Ojima is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of materials science, particularly in the development of high-strength steel sheets. Her innovative work has garnered attention in both academic and industrial circles.
Latest Patents
Ojima holds a patent for a high-strength steel sheet and the method for manufacturing it. This steel sheet boasts a tensile strength of 1,180 MPa or more, achieved through a carefully controlled chemical composition and microstructure. The microstructure includes specific area fractions of ferrite, martensite, bainite, and tempered martensite, along with a defined average grain size, ensuring optimal performance in various applications.
Career Highlights
Mayumi Ojima is currently employed at JFE Steel Corporation, where she continues to advance her research and development efforts. Her work has not only contributed to the company's reputation as a leader in steel manufacturing but has also paved the way for innovations in the industry.
Collaborations
Ojima collaborates with esteemed colleagues, including Takeshi Yokota and Yoshimasa Funakawa. These partnerships enhance her research capabilities and foster a collaborative environment for innovation.
Conclusion
Mayumi Ojima's contributions to high-strength steel technology exemplify her dedication to innovation in materials science. Her patent and ongoing work at JFE Steel Corporation highlight her role as a key figure in the advancement of steel manufacturing.