Company Filing History:
2 out of 227 
2 out of 832,880 Years Active: 1999-2000
Title: The Innovative Contributions of Yoshihiro Ashino
Introduction
Yoshihiro Ashino is a notable inventor based in Chigasaki, Japan. He has made significant contributions to the field of metal refining, holding a total of 2 patents. His work focuses on methods that enhance the purity of metals through advanced techniques.
Latest Patents
One of Yoshihiro Ashino's latest patents is a method of refining metal to a high degree of purity. This innovative process involves heat-melting the metal in a crucible placed within a vacuum vessel. The method requires evacuating the vessel prior to melting and preheating the entire vacuum atmosphere to maintain a total pressure of 1.times.10.sup.-8 Torr or lower. High-frequency induction heating is applied while controlling the partial pressures of O₂, H₂, and CO within the vessel. Additionally, the vacuum vessel, metal crucible, and induction heating coil are designed with a double jacket structure, allowing for effective heating or cooling through circulating water.
Career Highlights
Yoshihiro Ashino has worked with Shinko Electric Company, Ltd., where he has further developed his expertise in metal refining technologies. His career reflects a commitment to innovation and excellence in his field.
Collaborations
Throughout his career, Yoshihiro has collaborated with notable individuals such as Kenji Abiko and Hitoshi Kawano. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Yoshihiro Ashino's contributions to metal refining through his innovative patents demonstrate his significant impact on the industry. His work continues to influence advancements in achieving high-purity metals.