Yoshikazu Yaginuma

Title: Innovations by Yoshikazu Yaginuma

Introduction

Yoshikazu Yaginuma is a notable inventor based in Hoya, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced coated steel products. With a total of 2 patents, his work focuses on enhancing the durability and performance of metal components.

Latest Patents

Yaginuma's latest patents include innovative methods for creating duplex coated steel composite products. These products feature a first layer of a nitrided layer formed through glow discharge at a current density ranging from 0.001 to 2.0 mA/cm². This process utilizes gaseous ammonia and hydrogen while maintaining the metal parts at temperatures between 300 to 650 degrees Celsius. The second layer consists of a hard film made from nitrides, carbides, and/or carbonitrides of elements such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, and chromium. This hard film is applied using the Physical Vapor Deposition (PVD) method, resulting in laminate or gradient laminate films. The treated products exhibit excellent adhesion, durability, oxidation resistance, and wear resistance.

Career Highlights

Throughout his career, Yaginuma has worked with prominent organizations, including Sumitomo Metal Mining Company, Ltd. and the Research Institute for Metal Surface of High Performance, Ltd. His experience in these companies has contributed to his expertise in metal surface treatments and coatings.

Collaborations

Yaginuma has collaborated with notable colleagues such as Shinichi Okabe and Yoshiro Ishii. Their combined efforts have further advanced the field of coated materials and their applications.

Conclusion

Yoshikazu Yaginuma's innovative work in duplex coated steel composite products showcases his commitment to enhancing material performance. His patents reflect a deep understanding of materials science and engineering, contributing to advancements in the industry.