Motohisa Miyafuji

Title: Motohisa Miyafuji: Innovator in Copper Alloys

Introduction

Motohisa Miyafuji is a prominent inventor based in Shimonoseki, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative copper alloys. With a total of 12 patents to his name, his work focuses on enhancing the antibacterial and sterilizing properties of these materials.

Latest Patents

Miyafuji's latest patents include an alloy that exhibits both antibacterial and sterilizing effects. This copper alloy comprises 0.1-7.3% titanium and may also contain zinc, silicon, and silver in specific amounts. The surface layer of this alloy contains a titanium oxide, which provides its antibacterial properties through an optical catalyst function. The alloy can be produced by heating it to temperatures between 200-800°C, allowing for the preferential oxidation of titanium and other elements. Another notable patent is for a corrosion-resistant copper alloy tube designed for heat exchangers. This tube contains 0.05 to 1.5 wt. % manganese and is deoxidized to maintain low oxygen concentration. It also allows for the addition of various elements to enhance its corrosion resistance and brazing properties.

Career Highlights

Throughout his career, Motohisa Miyafuji has worked with notable companies, including Kobe Steel, Ltd. His experience in these organizations has contributed to his expertise in developing advanced materials that address specific industrial challenges.

Collaborations

Miyafuji has collaborated with Isao Hosokawa, further enhancing his research and development efforts in the field of copper alloys.

Conclusion

Motohisa Miyafuji's innovative work in copper alloys has led to significant advancements in antibacterial and corrosion-resistant materials. His contributions continue to impact various industries, showcasing the importance of innovation in materials science.