Patents by Inventor Tai-II Mah

Tai-II Mah 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).

  • Methods for fabricating YAG barrier coatings
    Patent number: 7935387
    Abstract: Method embodiments for coating alloys comprise providing a superalloy substrate, applying a bond coat onto the superalloy substrate, forming an oxidation barrier coating comprising an yttrium aluminum garnet (YAG) phase on the bond coat, and depositing a top coat on the oxidation barrier coating.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: May 3, 2011
    Assignee: UES, Inc.
    Inventors: Hee Dong Lee, Tai-II Mah
  • Yttrium aluminum garnet powders and processing
    Publication number: 20040109808
    Abstract: Methods of producing doped and undoped yttrium aluminum garnet and yttrium aluminum perovskite containing powders and the powders produced thereby are provided. Additionally, methods of forming doped and undoped polycrystalline yttrium aluminum garnet having a mean grain size of between about 1 &mgr;m to about 3 &mgr;m and the yttrium aluminum garnet produced thereby are provided. The doped and undoped polycrystalline yttrium aluminum garnet may be formed by sintering a compact and subsequently hot isostatically pressing the compact.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Inventors: HeeDong Lee, Tai-II Mah, Triplicane A. Parthasarathy, Kristin A. Keller