About: http://webisa.webdatacommons.org/6406168

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In the present embodiment, copper is used as the metal to be used in the absorbing structure, but the present invention is not limited to copper and other nontransparent metals such as silver, iron, etc. may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com