Patents Assigned to ESRI CO., LTD.
  • Publication number: 20160176726
    Abstract: The present invention provides a method for purifying organic chemical-containing contaminated substances by which various organic chemicals (contaminants) can be readily and sufficiently decomposed in a short time, the method comprising the steps of adding a metal salt and a transition metal ionic compound to water or soil that contains organic chemicals, decomposing the organic chemicals by irradiating with light, and separating/collecting the detoxified organic chemicals.
    Type: Application
    Filed: February 29, 2016
    Publication date: June 23, 2016
    Applicants: OSAKA UNIVERSITY, ESRI CO. LTD.
    Inventors: Hiroyasu Nagase, Kazuhisa Miyamoto, Kazumasa Hirata, Hiroshi Saito
  • Patent number: 9309164
    Abstract: The present invention provides a method for purifying organic chemical-containing contaminated substances by which various organic chemicals (contaminants) can be readily and sufficiently decomposed in a short time, the method comprising the steps of adding a metal salt and a transition metal ionic compound to water or soil that contains organic chemicals, decomposing the organic chemicals by irradiating with light, and separating/collecting the detoxified organic chemicals.
    Type: Grant
    Filed: December 25, 2006
    Date of Patent: April 12, 2016
    Assignees: OSAKA UNIVERSITY, ESRI CO. LTD.
    Inventors: Hiroyasu Nagase, Kazuhisa Miyamoto, Kazumasa Hirata, Hiroshi Saito
  • Publication number: 20100234666
    Abstract: The present invention provides a method for purifying organic chemical-containing contaminated substances by which various organic chemicals (contaminants) can be readily and sufficiently decomposed in a short time, the method comprising the steps of adding a metal salt and a transition metal ionic compound to water or soil that contains organic chemicals, decomposing the organic chemicals by irradiating with light, and separating/collecting the detoxified organic chemicals.
    Type: Application
    Filed: December 25, 2006
    Publication date: September 16, 2010
    Applicants: OSAKA UNIVERSITY,, ESRI CO., LTD.
    Inventors: Hiroyasu Nagase, Kazuhisa Miyamoto, Kazumasa Hirata, Hiroshi Saito