PRECIOUS SEMIPRECIOUS GEMSTONES

Brand Owner (click to sort) Address Description
DIAMOND.COM AN ODIMO COMPANY ODIMO.COM, INC. 14001 N.W. 4th Street Sunrise FL 33325 PRECIOUS AND SEMIPRECIOUS GEMSTONES, FINE JEWELRY AND WATCHES;DIAMOND COM;COMPUTERIZED ONLINE RETAIL SERVICES IN THE FIELD OF DIAMONDS, WATCHES AND JEWELRY; AND MAIL ORDER CATALOGUE SERVICES FEATURING DIAMONDS, WATCHES AND JEWELRY;
EVERGREEN Leslie & Co. 30061 HILLSIDE TERRACE SAN JUAN CAPISTRANO CA 92675 Precious and semiprecious gemstones;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The object of the present invention is to provide a catalyst that is highly active and capable of maintaining its activity for a long period of time even in a high-temperature environment. The present invention is a catalyst including: a porous carrier which is comprised of one kind of or two or more kinds of metal oxides; and catalyst particles which are comprised of precious metals or precious metal oxides and supported on the above porous carrier, characterized in that the catalyst particles include: clustered particles formed by the aggregation of first precious metal atoms; and second precious metal ions bound to the above clustered particles. Preferably, the first precious metal and the second precious metal are different metal species which are selected from the group consisting of platinum, palladium, rhodium, ruthenium, silver, gold, iridium and osmium.