Company Filing History:
2 out of 5 
2 out of 17 
1 out of 1 Years Active: 1995-2007
Title: The Innovative Contributions of Takumi Sone
Introduction
Takumi Sone is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of surface treatment of titanium metals. With a total of two patents to his name, Sone's work focuses on enhancing the properties of titanium through innovative methods.
Latest Patents
Sone's latest patents include a method of surface treatment of titanium metal. This method proposes a carburizing treatment that allows carbon to penetrate between metallic atoms without turning amorphous or depositing on the surface. The process involves heating titanium to a temperature of 400-690°C in a cleaning gas atmosphere containing hydrogen gas. It also includes applying a DC voltage of 200-1500 V for surface cleaning and plasma carburizing in a controlled atmosphere. His second patent details a method of treating the surface of titanium to reduce friction coefficient and wear loss while maintaining corrosion resistance. This involves plasma-carburizing pure titanium or titanium alloy in an atmosphere containing hydrocarbon gas at a pressure of 0.5 to 15 Torr and a temperature of 700°C to 1100°C.
Career Highlights
Throughout his career, Takumi Sone has worked with reputable companies such as Tanaka Limited and Osaka Prefecture. His experience in these organizations has contributed to his expertise in the field of materials science and surface treatment technologies.
Collaborations
Sone has collaborated with notable coworkers, including Yukihiro Sato and Kei Demizu. Their combined efforts have further advanced the research and development of titanium surface treatments.
Conclusion
Takumi Sone's innovative patents and career achievements highlight his significant contributions to the field of titanium surface treatment. His work continues to influence advancements in materials science and engineering.