Nobutoshi Kawamura

Title: Nobutoshi Kawamura: Innovator in Copper Conductor Technology

Introduction

Nobutoshi Kawamura is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of materials science, particularly in the development of copper conductor compositions. His innovative work has implications for various industries, including electronics and electrical engineering.

Latest Patents

Kawamura holds a patent for a copper conductor composition. This composition comprises a copper powder, an inorganic oxide powder, a glass powder, and an organic vehicle. The copper powder has an average particle size of 0.5 to 3 µm, a tap density of 3.0 to 5.0 g/cm³, and an oxygen content of 0.05 to 0.15% by weight. The use of zinc oxide powder, and optionally nickel powder, as the inorganic oxide powder enhances the properties of the conductor. This composition provides excellent conductor properties such as solderability, adhesive strength, and matching property to resistances.

Career Highlights

Throughout his career, Kawamura has worked with prominent companies, including Dai-ichi Kogyo Seiyaku Co., Ltd. and Dowa Mining Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials and contribute to innovative solutions in the industry.

Collaborations

Kawamura has collaborated with notable colleagues, including Masatoshi Suehiro and Masashi Echigo. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Nobutoshi Kawamura's contributions to copper conductor technology exemplify the impact of innovation in materials science. His patent and career achievements highlight the importance of research and development in advancing technology.