Patents by Inventor Tae-Yeong Koo

Tae-Yeong Koo 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).

  • Devices using a ceramic piezoelectric
    Patent number: 6703765
    Abstract: An electromechanical vice includes a support structure, a component moveable with respect to the support structure, and a piezoelectric device mechanically coupled to both the support structure and the component. The piezoelectric device includes a polycrystalline body and electrodes located on the body. The body has a composition with a stoichiometry described by [Pb(Mg1/3Nb2/3)O3](1−x) [PbTiO3]x. The value of x is in the range of about 0.31 to about 0.47.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: March 9, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Sang-Wook Cheong, Tae-Yeong Koo
  • Devices using a ceramic piezoelectric
    Publication number: 20030038275
    Abstract: A device includes a polycrystalline body having a stoichiometry that is described by [Pb(Mg1/3Nb2/3)O3](1-x)[PbTiO3]x. The value of x is in a range of about 0.31 to about 0.47.
    Type: Application
    Filed: October 9, 2002
    Publication date: February 27, 2003
    Inventors: Sang-Wook Cheong, Tae-Yeong Koo
  • Ceramic piezoelectric and devices using the piezoelectric
    Patent number: 6517737
    Abstract: A device includes a polycrystalline body having a stoichiometry that is described by [Pb(Mg1/3Nb2/3))O3](1−x)[PbTiO3]x. The value of x is in a range of about 0.31 to about 0.47.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: February 11, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Sang-Wook Cheong, Tae-Yeong Koo
  • Ceramic piezoelectric and devices using the piezoelectric
    Publication number: 20020123421
    Abstract: A device includes a polycrystalline body having a stoichiometry that is described by [Pb(Mg⅓Nb⅔)O3](1−x)[PbTiO3]x. The value of x is in a range of about 0.31 to about 0.47.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 5, 2002
    Inventors: Sang-Wook Cheong, Tae-Yeong Koo