Hiroaki Okubo

Title: **Innovations by Hiroaki Okubo: A Visionary in Copper Powder Engineering**

Introduction

Hiroaki Okubo is an esteemed inventor based in Kyoto, Japan, recognized for his groundbreaking work in the development of copper powder technologies. With a total of four patents to his name, Okubo's contributions significantly enhance the efficiency and electrical conductivity of laminated and shaped copper products.

Latest Patents

Two of his latest patents focus on innovative methods of lamination shaping copper powder. The first patent introduces a copper powder with added tin (Sn), enabling the production of a high-density laminated and shaped product through a unique laminating and shaping process that utilizes fiber laser technology. This approach effectively reduces the electrical conductivity of pure copper, allowing for higher density and electrical conductivity in the final product. Ideally, this copper powder contains 0.5 wt % or more of the tin element, with an optimal range of 5.0 wt % or more, while maintaining electrical conductivity below 6.0 wt % for quality copper products.

The second patent outlines a similar innovation, where a phosphorus (P) element is incorporated into copper powder, also aimed at creating high-density laminated and shaped products through fiber laser heating. The parameters for this invention specify that the phosphorus content should be between 0.01 wt % to 0.30 wt %, ensuring that no other elements are added, providing purity and effectiveness in the lamination shaping process.

Career Highlights

Throughout his career, Hiroaki Okubo has had the privilege of working with notable companies such as Fukuda Metal Foil & Powder Co., Ltd. and Daihen Corporation. His experience in these organizations has greatly contributed to his expertise in the field of materials engineering and product development.

Collaborations

Okubo has collaborated with distinguished professionals in the industry, including Yoshito Nishizawa and Takeshi Maruyama. Their collective efforts have fostered advancements in the applications of copper powder, making significant strides in manufacturing and technology.

Conclusion

Hiroaki Okubo's innovations in copper powder technology exemplify how targeted research and development can lead to enhanced materials for industrial applications. His work not only provides new methodologies for producing high-density laminated products but also opens avenues for future advancements in copper engineering and beyond.