Patents Examined by C Koslow
  • Method of preparing a lead and manganese co-activated calcium metasilicate phosphor
    Patent number: 5976413
    Abstract: A CaSiO.sub.3 :Pb,Mn phosphor is synthesized using a colloidal silica suspension wherein a cationic species is added to the suspension to form a well-mixed, easily-filtered, raw blend which reduces the filtering and calcining times required to produce a commercial quality phosphor.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: November 2, 1999
    Assignee: Osram Sylvania Inc.
    Inventors: Anthony L. Diaz, Jenace A. Yurchisin