Location History:
- Ehime, JP (2016)
- Niihama, JP (2020 - 2024)
Company Filing History:
Years Active: 2016-2024
Title: Innovations of Yu Yamashita in Metal Recovery
Introduction
Yu Yamashita is a prominent inventor based in Niihama, Japan, known for his significant contributions to the field of metal recovery from waste materials. With a total of seven patents to his name, he has developed innovative methods that enhance the efficiency of recovering valuable metals from waste lithium-ion batteries.
Latest Patents
One of his latest patents is a method for recovering valuable metals from waste lithium-ion batteries. This invention provides a more efficient dry refining process aimed at improving the recovery rate of phosphorus-free valuable metals. The method involves a melting step where waste lithium-ion batteries are melted to obtain a molten substance, followed by a slag separation step to recover an alloy containing valuable metals. The process includes adding flux containing a calcium compound to ensure optimal mass ratios in the slag.
Another notable patent is a method for recovering valuable metals such as copper, nickel, and cobalt. This method allows for strict control of the oxygen partial pressure during the heating and melting of raw materials, leading to more efficient recovery. The process includes preparing a charge with phosphorus and a valuable metal, heating it to form a molten body, and separating the slag to recover the alloy.
Career Highlights
Yu Yamashita is currently employed at Sumitomo Metal Mining Company, Ltd., where he continues to innovate in the field of metal recovery. His work has significantly impacted the efficiency of recycling processes, contributing to sustainable practices in the industry.
Collaborations
He has collaborated with notable coworkers, including Ryo Togashi and Yoshitomo Ozaki, to further advance the research and development of metal recovery technologies.
Conclusion
Yu Yamashita's innovative methods for recovering valuable metals from waste materials demonstrate his commitment to enhancing recycling processes. His contributions are vital for promoting sustainability in the metal recovery industry.