Toshiyuki Yamaoka

Title: Innovations of Toshiyuki Yamaoka

Introduction

Toshiyuki Yamaoka is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of resource recovery, particularly in the extraction of valuable materials from lithium-ion batteries. With a total of 2 patents, his work is pivotal in advancing sustainable practices in the mining and recycling industries.

Latest Patents

Yamaoka's latest patents include a method for separating and recovering nickel and lithium. This innovative method involves a solvent extraction process that utilizes three or more extraction stages. The process subjects a solution containing lithium and nickel to solvent extraction with 2-Ethylhexyl phosphonic acid mono-2-ethylhexyl ester at a pH of 8.0 to 8.5, allowing for the co-extraction of nickel and lithium into a resultant organic phase. Another significant patent is the preparation method of lithium carbonate from lithium-ion secondary battery recovered material. This method focuses on recovering valuable resources from lithium-ion batteries while reducing impurities in lithium carbonate through a pretreatment process.

Career Highlights

Yamaoka is currently associated with JX Nippon Mining & Metals Corporation, where he continues to innovate in the field of resource recovery. His work is instrumental in developing methods that enhance the efficiency of extracting valuable materials from waste.

Collaborations

He collaborates with esteemed colleagues such as Makoto Narisako and Daisuke Kobayashi, contributing to a dynamic team focused on advancing technology in resource recovery.

Conclusion

Toshiyuki Yamaoka's contributions to the field of resource recovery through his innovative patents highlight the importance of sustainable practices in modern industry. His work not only addresses current challenges but also paves the way for future advancements in the extraction of valuable materials.