Patents by Inventor Gerard Aka

Gerard Aka 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 for generating laser light and laser crystal
    Patent number: 6510169
    Abstract: A crystalline material for optically pumped solid state lasers has the chemical composition of M3RE1-x Ybx(BO3)3, where M is selected from the group Mg, Ca, Sr, Ba, and Ra, optionally replaced at least partially with another element from this group, RE is selected from the group Sc, Y, Lu, and Y partially replaced with Lu, and x is greater than or equal to 0 and less than or equal to 1. The material is useful for preparing lasers having high average initial power and short pulse duration, and has flat amplification and fluorescence spectra, high thermal conductivity and a large emission cross-section.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: January 21, 2003
    Assignee: Forschungsinstitut fur Mineralische und Metallische Werkstoffe Edelsteine/Edemetalle GmbH
    Inventors: Paul Henri Haumesser, Romain Gaume, Bruno Viana, Gerard Aka, Daniel Vivien
  • Method for generating laser light and laser crystal
    Publication number: 20020110168
    Abstract: A crystalline material for optically pumped solid state lasers has the chemical composition of M3RE1−xYbx(BO3)3, where M is selected from the group Mg, Ca, Sr, Ba, and Ra, optionally replaced at least partially with another element from this group, RE is selected from the group Sc, Y, Lu, and Y partially replaced with Lu, and x is greater than or equal to 0 and less than or equal to 1. The material is useful for preparing lasers having high average initial power and short pulse duration, and has flat amplification and fluorescence spectra, high thermal conductivity and a large emission cross-section.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 15, 2002
    Inventors: Paul Henri Haumesser, Romain Gaume, Bruno Viana, Gerard Aka, D. Vivien
  • Non-linear crystals and their applications
    Patent number: 6083319
    Abstract: Non-linear single crystal obtained by crystallization of a congruent molten composition of general formula:M.sub.4 LnO(BO.sub.3).sub.3in which:M is Ca, or Ca partially substituted with Sr or Ba;Ln is one of the lanthanides of the group comprising Y, Gd, La and Lu.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: July 4, 2000
    Assignee: Crismatec
    Inventors: Gerard Aka, Laurence Bloch, Jean Godard, Andree Kahn-Harari, Francois Salin, Daniel Vivien