Patents by Inventor Michael A. Di Giuseppe

Michael A. Di Giuseppe 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).

  • Lanthanum indium gallium garnets
    Patent number: 4202930
    Abstract: Congruently melting compositions of gallium garnets containing lanthanum are provided in which trivalent indium is partially substituted for gallium. The lanthanum indium gallium garnets have larger lattice parameters than other rare earth gallium garnets. The lanthanum indium gallium garnets of the invention are represented by the formulaLa.sub.a In.sub.b Ga.sub.c O.sub.12where "a" ranges from greater than about 3.24 to less than 3.32, "b" ranges from greater than about 1.84 to less than about 2.24 and "c" ranges from greater than about 2.48 to less than about 2.88, the total of "a" plus "b" plus "c" being 8. The garnets of the invention are useful as single crystal substrates for supporting magneto-optic and magnetic garnet thin films having large lattice parameters approaching 13 A.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: May 13, 1980
    Assignee: Allied Chemical Corporation
    Inventors: Milan R. Kokta, Robert C. Linares, Michael A. Di Giuseppe