Patents Assigned to Sandia Corporation, Operator of Sandia National Laboratories
  • PHOTOCATALYTIC METHODS FOR PREPARATION OF ELECTROCATALYST MATERIALS
    Publication number: 20140031193
    Abstract: The invention relates to methods and structures of metal particles on a support material, including platinum-containing nanoparticles on a carbon support. Such materials can be used as electrocatalysts, for example as improved electrocatalysts in polymer electrolyte membrane fuel cells (PEM-FCs).
    Type: Application
    Filed: August 29, 2013
    Publication date: January 30, 2014
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Sandia Corporation, Operator of Sandia National Laboratories, Toyota Motor Corporation
    Inventors: Wen Li, Tetsuo Kawamura, Tetsuo Nagami, Hiroaki Takahashi, John Muldoon, John A. Shelnutt, Yujiang Song, James E. Miller, Michael A. Hickner, Craig John Medforth
  • DENDRITIC METAL NANOSTRUCTURES FOR FUEL CELLS AND OTHER APPLICATIONS
    Publication number: 20130302721
    Abstract: Embodiment of the present invention relate to dendrimers useful for application as catalysts, in particular as improved electrocatalysts for polymer electrolyte membrane fuel cells (PEM-FCs). Methods of preparing such catalysts are described. Examples include dendritic nanostructured metal catalysts, such as platinum and platinum-alloy catalysts.
    Type: Application
    Filed: November 29, 2006
    Publication date: November 14, 2013
    Applicants: Sandia Corporation, Operator of Sandia National Laboratories, Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: John A. Shelnutt, Wen Li, Yujiang Song, Michael A. Hickner
  • Photocatalytic methods for preparation of electrocatalyst materials
    Patent number: 8541146
    Abstract: The invention relates to methods of preparing metal particles on a support material, including platinum-containing nanoparticles on a carbon support. Such materials can be used as electrocatalysts, for example as improved electrocatalysts in polymer electrolyte membrane fuel cells (PEM-FCs).
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: September 24, 2013
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Sandia Corporation, Operator of Sandia National Laboratories
    Inventors: Wen Li, Tetsuo Kawamura, Tetsuo Nagami, Hiroaki Takahashi, John Muldoon, John A. Shelnutt, Yujiang Song, James E. Miller, Michael A. Hickner, Craig Medforth
  • Methods and systems for integrating fluid dispensing technology with stereolithography
    Patent number: 8252223
    Abstract: An integrated system and method of integrating fluid dispensing technologies (e.g., direct-write (DW)) with rapid prototyping (RP) technologies (e.g., stereolithography (SL)) without part registration comprising: an SL apparatus and a fluid dispensing apparatus further comprising a translation mechanism adapted to translate the fluid dispensing apparatus along the Z-, Y- and Z-axes. The fluid dispensing apparatus comprises: a pressurized fluid container; a valve mechanism adapted to control the flow of fluid from the pressurized fluid container; and a dispensing nozzle adapted to deposit the fluid in a desired location. To aid in calibration, the integrated system includes a laser sensor and a mechanical switch. The method further comprises building a second part layer on top of the fluid deposits and optionally accommodating multi-layered circuitry by incorporating a connector trace.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 28, 2012
    Assignees: Board of Regents, The University of Texas System, Sandia Corporation, Operator of Sandia National Laboratories
    Inventors: Francisco Medina, Ryan Wicker, Jeremy A. Palmer, Don W. Davis, Bart D. Chavez, Phillip L. Gallegos
  • Methods and systems for integrating fluid dispensing technology with stereolithography
    Patent number: 7658603
    Abstract: An integrated system and method of integrating fluid dispensing technologies (e.g., direct-write (DW)) with rapid prototyping (RP) technologies (e.g., stereolithography (SL)) without part registration comprising: an SL apparatus and a fluid dispensing apparatus further comprising a translation mechanism adapted to translate the fluid dispensing apparatus along the Z-, Y- and Z-axes. The fluid dispensing apparatus comprises: a pressurized fluid container; a valve mechanism adapted to control the flow of fluid from the pressurized fluid container; and a dispensing nozzle adapted to deposit the fluid in a desired location. To aid in calibration, the integrated system includes a laser sensor and a mechanical switch. The method further comprises building a second part layer on top of the fluid deposits and optionally accommodating multi-layered circuitry by incorporating a connector trace.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 9, 2010
    Assignees: Board of Regents, The University of Texas System, Sandia Corporation, Operator of Sandia National Laboratories
    Inventors: Francisco Medina, Ryan Wicker, Jeremy A. Palmer, Don W. Davis, Bart D. Chavez, Phillip L. Gallegos
  • PHOTOCATALYTIC METHODS FOR PREPARATION OF ELECTROCATALYST MATERIALS
    Publication number: 20090011928
    Abstract: The invention relates to methods of preparing metal particles on a support material, including platinum-containing nanoparticles on a carbon support. Such materials can be used as electrocatalysts, for example as improved electrocatalysts in proton exchange membrane fuel cells (PEM-FCs).
    Type: Application
    Filed: July 2, 2008
    Publication date: January 8, 2009
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Sandia Corporation, Operator of Sandia National Laboratories, Toyota Motor Corporation
    Inventors: Tochi Tudor Nwoga, Kazuo Kawahara, Li Wen, Yujiang Song, John A. Shelnutt, James E. Miller, Craig John Medforth, Yukiyoshi Ueno, Tetsuo Kawamura