This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: Sumitomo Metal Mining Company, Ltd.. Active years: 2007-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2007-2009
Title: Harumasa Kurokawa: Innovator in Silver and Platinum Group Metal Separation
Introduction
Harumasa Kurokawa is a notable inventor based in Niihama, Japan. He has made significant contributions to the field of metal separation and purification, particularly focusing on silver and platinum group metals. With a total of 2 patents, Kurokawa's work has advanced the methods used in the extraction and refinement of these valuable materials.
Latest Patents
Kurokawa's latest patents include a method of separation and purification for high-purity silver chloride and a process for producing high-purity silver. The first patent describes an efficient method for obtaining high-purity silver chloride without the need for pretreatment of refining intermediates. This method involves a leaching step with an aqueous sulfite solution, followed by a silver chloride generation step and a purification step that utilizes an oxidizing agent to remove impurities. The second patent outlines a process for the mutual separation of platinum group metals, ensuring that each metal, including palladium, platinum, iridium, ruthenium, and rhodium, is separated with sufficient purity for commercial use.
Career Highlights
Kurokawa is currently employed at Sumitomo Metal Mining Company, Ltd., where he continues to innovate in the field of metal extraction and purification. His work has not only contributed to the efficiency of metal recovery processes but has also enhanced the overall quality of the products derived from these metals.
Collaborations
Throughout his career, Kurokawa has collaborated with esteemed colleagues such as Satoshi Asano and Shinichi Heguri. These collaborations have fostered a productive environment for innovation and have led to advancements in their respective fields.
Conclusion
Harumasa Kurokawa's contributions to the field of metal separation and purification are noteworthy. His innovative patents and ongoing work at Sumitomo Metal Mining Company, Ltd. highlight his commitment to advancing technology in this area. Kurokawa's efforts continue to impact the industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile