This inventor holds 2 USPTO granted patents. Top assignees: Shinko Electric Company, Ltd., Other. Active years: 1999-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 227 
2 out of 834,513 Years Active: 1999-2000
Title: The Innovations of Tadahito Nakajima
Introduction
Tadahito Nakajima is a notable inventor based in Ise, Japan. He has made significant contributions to the field of metal refining and induction melting technologies. With a total of 2 patents, Nakajima's work showcases his expertise and innovative spirit.
Latest Patents
One of Nakajima's latest patents is a method of refining metal to a high degree of purity. This method involves heat-melting the metal in a crucible placed within a vacuum vessel. The process includes 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 employed 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.
Another significant patent is the cold crucible induction melting furnace. This innovative furnace features multiple segments separated by slits, forming a melting chamber. The design includes a radially extending flange that creates gaps for improved magnetic flux density. The induction coil is strategically placed to enhance the efficiency of the melting process.
Career Highlights
Throughout his career, Nakajima has worked with Shinko Electric Company, Ltd., where he has applied his innovative techniques in metal refining and induction melting. His contributions have been instrumental in advancing the technology used in these industries.
Collaborations
Nakajima has collaborated with notable coworkers such as Hitoshi Kawano and Kenji Abiko. Their combined expertise has furthered the development of advanced technologies in their field.
Conclusion
Tadahito Nakajima's contributions to metal refining and induction melting technologies highlight his innovative capabilities as an inventor. His patents reflect a commitment to advancing industrial processes and improving efficiency in metal processing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile