This inventor holds 1 USPTO granted patent and 1 published patent application, plus 1 CIPO patent and 1 EPO patent. Top assignee: Jfe Steel Corporation. Active years: 2021.
Company Filing History:
Years Active: 2021
Title: Yoshiaki Ota: Innovator in High-Strength Steel Plates
Introduction
Yoshiaki Ota is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to the field of materials engineering, particularly in the development of high-strength steel plates for structural applications. His innovative work has led to advancements that enhance the performance and durability of structural pipes and tubes.
Latest Patents
Yoshiaki Ota holds a patent for a steel plate designed for structural pipes or tubes. This invention focuses on a high-strength steel plate of API X80 grade or higher, with a thickness of 38 mm or more. The steel plate exhibits excellent resistance to post-weld heat treatment (PWHT) and remarkable toughness at the heat-affected zone, especially at the butting faces joined by welding. Notably, this invention does not require the addition of large amounts of alloying elements. The specific chemical composition of the steel plate ensures that it maintains mechanical properties, including a yield strength of 555 MPa or more, a tensile strength of 625 MPa or more, and a Charpy absorption energy of 250 J or more at -10°C, even after heat treatment at 650°C for 2 hours.
Career Highlights
Yoshiaki Ota is currently employed at JFE Steel Corporation, where he continues to innovate and contribute to the field of steel manufacturing. His work has been instrumental in advancing the technology behind high-strength steel products, making them more efficient and reliable for various structural applications.
Collaborations
Throughout his career, Yoshiaki Ota has collaborated with notable colleagues, including Shusaku Ota and Shinichi Kakihara. These collaborations have fostered a productive environment for innovation and have led to the successful development of new materials and technologies.
Conclusion
Yoshiaki Ota's contributions to the field of high-strength steel plates have made a significant impact on structural engineering. His innovative patent showcases his expertise and commitment to advancing material science. His work continues to influence the industry and improve the performance of structural applications.