Raharjo Purwadi

Title: Innovations by Raharjo Purwadi in Surface Treatment Technology

Introduction

Raharjo Purwadi is a notable inventor based in Niigata, Japan. He has made significant contributions to the field of surface treatment technology, particularly through his innovative methods involving electron beam irradiation.

Latest Patents

Raharjo Purwadi holds a patent for a method titled "Method for surface treating a die by electron beam irradiation and a die treated thereby." This invention focuses on treating metal dies using a low energy, pulsed electron beam. The process enhances the surface smoothness, glossiness, hardness, and corrosion resistance of the die. The method involves irradiating the die with an energy density of at least 1 J/cm per pulse, utilizing a minimum of five pulse irradiations, and maintaining a pulse duration of at least 1 microsecond. The results of this treatment lead to improved performance and durability of the dies.

Career Highlights

Raharjo Purwadi is associated with Nagata Seiki Kabushiki Kaisha, where he applies his expertise in surface treatment technologies. His work has been instrumental in advancing the capabilities of metal dies used in various industrial applications.

Collaborations

Raharjo has collaborated with notable colleagues, including Yoshiyuki Uno and Akira Okada, to further enhance the research and development of innovative surface treatment methods.

Conclusion

Raharjo Purwadi's contributions to surface treatment technology through his patented methods demonstrate his commitment to innovation in the field. His work not only improves the quality of metal dies but also sets a benchmark for future advancements in surface treatment techniques.