This inventor holds 3 USPTO granted patents, plus 1 CIPO patent. Top assignee: Sumitomo Metal Mining Company, Ltd.. Active years: 1997-2008.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Saijo, JP (1997)
- Niihama, JP (2001)
- Ehime, JP (2008)
Company Filing History:
Years Active: 1997-2008
Title: Ryoichi Nakayama: Innovator in Environmental Technology
Introduction
Ryoichi Nakayama is a notable inventor based in Ehime, Japan. He has made significant contributions to environmental technology, particularly in the processing of sulfide minerals and cyanide ions. With a total of 3 patents, Nakayama's work focuses on innovative methods that address critical environmental challenges.
Latest Patents
One of Nakayama's latest patents is an anti-oxidation method for sulfide minerals in sulfide ore. This invention effectively suppresses the oxidation of sulfide minerals, preventing the elution of heavy metals from sulfide ore. It also enhances flotation performance when processing sulfide ore stored in stockpiles. Additionally, this method simplifies the processing of acidic wastewater from stockpiles or tailings dumpsites. The approach involves adding an antioxidant containing plant polyphenol, primarily an organic acid with a carboxyl group, to the sulfide ore.
Another significant patent is a method for processing cyanide ions using ozone. This method decomposes free cyanide ions and metallic cyano complex ions in a liquid. It involves bringing the liquid into contact with ozone gas under specific conditions, ensuring effective treatment of hazardous materials.
Career Highlights
Ryoichi Nakayama is currently associated with Sumitomo Metal Mining Company, Ltd. His work at this esteemed company has allowed him to focus on developing innovative solutions for environmental issues. His expertise in the field has positioned him as a key figure in advancing sustainable practices within the mining industry.
Collaborations
Nakayama has collaborated with notable colleagues, including Hideyuki Okamoto and Yoshiyuki Tanaka. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Ryoichi Nakayama's contributions to environmental technology through his patents demonstrate his commitment to addressing pressing ecological challenges. His innovative methods for processing sulfide minerals and cyanide ions reflect a dedication to sustainability and environmental protection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile