Patents by Inventor Jason S. H. Lo

Jason S. H. Lo 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).

  • Reinforcement preform for metal matrix composites
    Patent number: 6844281
    Abstract: A preform for use in a metal matrix composite, particularly for a magnesium metal composite. In the preform the reinforcing material typically is silicon carbide, boron nitride, titanium nitride, carbon or graphite. The binder used in the preform is sintered magnesium fluoride, which avoids the known problems which result from the high reactivity of molten magnesium metal with other binders, such as silica and alumina, which results in the formation of magnesium oxide in the reinforced composite. The presence of magnesium oxide crystals in the metal matrix adversely affects the properties of the composite. The preform generally has a void volume of from about 50% to about 95%.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: January 18, 2005
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources
    Inventors: Jason S. H. Lo, Areekattuthazhayil K. Kuriakose, Raul Santos
  • Reinforcement preform and metal matrix composites including the reinforcement preform
    Patent number: 6506502
    Abstract: A preform for use in a metal matrix composite, particularly for a magnesium metal composite, and a metal matrix composite, typically made by squeeze casting, using the preform. In the preform the reinforcing material typically is silicon carbide, boron nitride, carbon or graphite. The binder used in the preform is magnesium fluoride, which avoids the known problems which result from the high reactivity of magnesium metal with other binders, such as silica and alumina, which results in the formation of magnesium oxide in the reinforced composite. The presence of magnesium oxide crystals in the metal matrix adversely affects the properties of the composite.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: January 14, 2003
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources
    Inventors: Jason S. H. Lo, Areekattuthazhayil K. Kuriakose, Raul Santos
  • Reinforcement preform and metal matrix composites including the reinforcement preform
    Publication number: 20010015271
    Abstract: A preform for use in a metal matrix composite, particularly for a magnesium metal composite, and a metal matrix composite, typically made by squeeze casting, using the preform. In the preform the reinforcing material typically is silicon carbide, boron nitride, carbon or graphite. The binder used in the preform is magnesium fluoride, which avoids the known problems which result from the high reactivity of magnesium metal with other binders, such as silica and alumina, which results in the formation of magnesium oxide in the reinforced composite. The presence of magnesium oxide crystals in the metal matrix adversely affects the properties of the composite.
    Type: Application
    Filed: March 16, 2001
    Publication date: August 23, 2001
    Inventors: Jason S. H. Lo, Areekattuthazhayil K. Kuriakose, Raul Santos