Patents by Inventor Kathleen M. Paget

Kathleen M. Paget 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).

  • Process for fabricating an article comprising a magneto-optic garnet material
    Patent number: 6733587
    Abstract: Improvements in the production of high-performance latching magneto-optic garnet materials are provided. It has been recognized that high-Europium magneto-optic garnets will offer superior properties in devices such as isolators, circulators and interleavers. However, formation of, e.g., (BiEu)3(FeGa)5O12 on conventional, congruent composition, garnet substrates is difficult, due to poor lattice matching between the magneto-optic garnet and such conventional substrates. The invention addresses this problem, by utilizing a single crystal substrate composed essentially of a solid solution of two or more garnet materials. By use of a solid solution of two or more garnets, e.g., two congruent garnet compositions, an acceptable lattice parameter is able to be attained. Useful solid solutions include gadolinium scandium gallium garnet and gadolinium scandium aluminum garnet, or gadolinium scandium gallium garnet and terbium scandium gallium garnet.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: May 11, 2004
    Assignee: TriQuint Technology Holding Co.
    Inventors: Charles David Brandle, Jr., Vincent Jerome Fratello, Kathleen M. Paget, Shanthi Subramanian
  • Process for fabricating an article comprising a magneto-optic garnet material
    Publication number: 20030072870
    Abstract: Improvements in the production of high-performance latching magneto-optic garnet materials are provided. It has been recognized that high-Europium magneto-optic garnets will offer superior properties in devices such as isolators, circulators and interleavers. However, formation of, e.g., (BiEu)3(FeGa)5O12 on conventional, congruent composition, garnet substrates is difficult, due to poor lattice matching between the magneto-optic garnet and such conventional substrates. The invention addresses this problem, by utilizing a single crystal substrate composed essentially of a solid solution of two or more garnet materials. By use of a solid solution of two or more garnets, e.g., two congruent garnet compositions, an acceptable lattice parameter is able to be attained. Useful solid solutions include gadolinium scandium gallium garnet and gadolinium scandium aluminum garnet, or gadolinium scandium gallium garnet and terbium scandium gallium garnet.
    Type: Application
    Filed: March 5, 2002
    Publication date: April 17, 2003
    Inventors: Charles David Brandle, Vincent Jerome Fratello, Kathleen M. Paget, Shanthi Subramanian