Patents by Inventor Yvan Montardi

Yvan Montardi 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).

  • Submicron rare-earth borates and preparation/luminoshors thereof
    Patent number: 8980130
    Abstract: Liquid phase suspensions of substantially monocrystalline rare-earth borate particles, the mean size thereof ranging from 100 to 400 nm, are prepared by roasting a rare earth borocarbonate or hydroxyborocarbonate at a temperature which is sufficient for forming a borate and obtaining a product whose specific surface area is equal to or greater than 3 m2/g and then wet grinding the roasted product; such borates are useful in the form of luminophors, in particular, as luminescent transparent materials.
    Type: Grant
    Filed: October 9, 2006
    Date of Patent: March 17, 2015
    Assignee: Rhodia Operations
    Inventors: Valerie Buissette, Thierry Le-Mercier, Yvan Montardi, Laurent Thiers
  • Submicronic barium and magnesium aluminate phosphors
    Patent number: 8580150
    Abstract: Submicronic barium and magnesium aluminates, useful as phosphors, are in the form of a liquid-phase suspension of substantially monocrystalline particles having an average particle size ranging from 80 to 400 nm; such aluminates are prepared by a process that includes: providing a liquid mixture containing compounds of aluminum and of other elements that are part of the aluminate composition; drying the mixture by atomization; calcining the dried product in a reducing atmosphere and wet-grinding this product.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: November 12, 2013
    Assignee: Rhodia Operations
    Inventors: Valérie Buissette, Thierry Le-Mercier, Laurent Thiers, Yvan Montardi, Olivier Le-Roux
  • SUBMICRONIC BARIUM AND MAGNESIUM ALUMINATE PHOSPHORS
    Publication number: 20110068303
    Abstract: Submicronic barium and magnesium aluminates, useful as phosphors, are in the form of a liquid-phase suspension of substantially monocrystalline particles having an average particle size ranging from 80 to 400 nm; such aluminates are prepared by a process that includes: providing a liquid mixture containing compounds of aluminum and of other elements that are part of the aluminate composition; drying the mixture by atomization; calcining the dried product in a reducing atmosphere and wet-grinding this product.
    Type: Application
    Filed: March 10, 2009
    Publication date: March 24, 2011
    Applicant: RHODIA OPERATIONS
    Inventors: Valérie Buissette, Thierry Le-Mercier, Laurent Thiers, Yvan Montardi, Olivier Le-Roux
  • SUBMICRON RARE-EARTH BORATES AND PREPARATION/LUMINOSHORS THEREOF
    Publication number: 20100065780
    Abstract: Liquid phase suspensions of substantially monocrystalline rare-earth borate particles, the mean size thereof ranging from 100 to 400 nm, are prepared by roasting a rare earth borocarbonate or hydroxyborocarbonate at a temperature which is sufficient for forming a borate and obtaining a product whose specific surface area is equal to or greater than 3 m2/g and then wet grinding the roasted product; such borates are useful in the form of luminophors, in particular, as luminescent transparent materials.
    Type: Application
    Filed: October 9, 2006
    Publication date: March 18, 2010
    Inventors: Valerie Buissette, Thierry Le-Mercier, Yvan Montardi, Laurent Thiers