Patents by Inventor Shawn Vahlstrom

Shawn Vahlstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of preparing indium oxide/tin oxide target for cathodic sputtering
    Patent number: 6187253
    Abstract: An indium oxide/tin oxide powder with 5-15 wt. % tin oxide is subjected to an annealing treatment at T≧1, 000° C. and is then partially reduced and subjected to hot isostatic pressing to produce a sputtering target with a density of at least 95% of the theoretical density and a thermal conductivity of at least 14 Wm−1K−1.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: February 13, 2001
    Assignee: Leybold Material GmbH
    Inventors: Martin Schlott, Wolfgang Dauth, Martin Kutzner, Bruce Gehman, Shawn Vahlstrom
  • Sputter target for cathodic atomization to produce transparent, conductive layers
    Patent number: 5480532
    Abstract: A target for production of transparent electrically conductive layers by cathode sputtering is produced from indium oxide-tin oxide powder mixtures or coprecipitated indium oxide-tin oxide powders. A target with especially high mechanical strength consists of an oxide ceramic material into which metallic phase components have been incorporated in a uniform and finely distributed manner and which has a density of more than 96% of the theoretical density of indium oxide/tin oxide consisting purely of oxide.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: January 2, 1996
    Assignee: Leybold Materials
    Inventors: Martin Schlott, Martin Kutzner, Martin Weigert, Uwe Konietzka, Bruce Gehman, Shawn Vahlstrom