Shuttle Positioners Patents (Class 139/252)
  • Patent number: 8198528
    Abstract: A multilayer anti-reflection structure for a backside contact solar cell. The anti-reflection structure may be formed on a front side of the backside contact solar cell. The anti-reflection structure may include a passivation level, a high optical absorption layer over the passivation level, and a low optical absorption layer over the high optical absorption layer. The passivation level may include silicon dioxide thermally-grown on a textured surface of the solar cell substrate, which may be an N-type silicon substrate. The high optical absorption layer may be configured to block at least 10% of UV radiation coming into the substrate. The high optical absorption layer may comprise high-k silicon nitride and the low optical absorption layer may comprise low-k silicon nitride.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 12, 2012
    Assignee: SunPower Corporation
    Inventors: Hsin-Chiao Luan, Denis De Ceuster
  • Patent number: 5578136
    Abstract: Automatic dishwashing detergent compositions, comprising particular quaternary-substituted bleach activators, are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the selection of quaternary-substituted bleach activators having specific features, such as caprolactam or valerolactam leaving groups and/or the ability to form particular cationic aliphatic peracid structures in solution. Preferred automatic dishwashing compositions comprise amylase enzymes. Included are preferred activator compounds and methods for washing tableware in domestic automatic dishwashing appliances using the activators.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: November 26, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Lucille F. Taylor, Mark R. Sivik, Alan D. Willey, James C. T. Burckett-St. Laurent, Frederick A. Hartman