Patents by Inventor Sossity A. Sheets

Sossity A. Sheets 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).

  • Electromechanical actuators
    Patent number: 7090785
    Abstract: A perovskite compound of the formula, (Na1/2Bi1/2)1-xMx(Ti1-yM?y)O3±z, where M is one or more of Ca, Sr, Ba, Pb, Y, La, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu; and M? is one or more of Zr, Hf, Sn, Ge, Mg, Zn, Al, Sc, Ga, Nb, Mo, Sb, Ta, W, Cr, Mn, Fe, Co and Ni, and 0.01<x<0.3, and 0.01<y<0.3, and z<0.1 functions as an electromechanically active material. The material may possess electrostrictive or piezoelectric characteristics.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: August 15, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Sossity A. Sheets, Gregory W. Farrey, Nesbitt W. Hagood, IV, Andrey Soukhojak, Haifeng Wang
  • Electromechanical actuators
    Publication number: 20050109263
    Abstract: A perovskite compound of the formula, (Na1/2Bi1/2)1-xMx(Ti1-yM?y)O3±z, where M is one or more of Ca, Sr, Ba, Pb, Y, La, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu; and M? is one or more of Zr, Hf, Sn, Ge, Mg, Zn, Al, Sc, Ga, Nb, Mo, Sb, Ta, W, Cr, Mn, Fe, Co and Ni, and 0.01<x<0.3, and 0.01<y<0.3, and z<0.1 functions as an electromechanically active material. The material may possess electrostrictive or piezoelectric characteristics.
    Type: Application
    Filed: August 5, 2003
    Publication date: May 26, 2005
    Inventors: Yet-Ming Chiang, Sossity Sheets, Gregory Farrey, Nesbitt Hagood, Andrey Soukhojak, Haifeng Wang
  • Electromechanical actuators
    Publication number: 20040139911
    Abstract: A perovskite compound of the formula, (Na1/2Bi1/2)1-xMx(Ti1-yM′y)O3±z, where M is one or more of Ca, Sr, Ba, Pb, Y, La, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu; and M′ is one or more of Zr, Hf, Sn, Ge, Mg, Zn, Al, Sc, Ga, Nb, Mo, Sb, Ta, W, Cr, Mn, Fe, Co and Ni, and 0.01<x<0.3, and 0.01<y<0.3, and z<0.1 functions as an electromechanically active material. The material may possess electrostrictive or piezoelectric characteristics.
    Type: Application
    Filed: August 5, 2003
    Publication date: July 22, 2004
    Inventors: Yet-Ming Chiang, Sossity A. Sheets, Gregory W. Farrey, Nesbitt W. Hagood, Andrey Soukhojak, Haifeng Wang
  • Electromechanical actuators
    Publication number: 20020036282
    Abstract: A perovskite compound of the formula, (Na½Bi½)1−xMx(Ti1−yM′y)O3±z, where M is one or more of Ca, Sr, Ba, Pb, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and M′ is one or more of Zr, Hf, Sn, Ge, Mg, Zn, Al, Sc, Ga, Nb, Mo, Sb, Ta, W, Cr, Mn, Fe, Co and Ni, and 0.01<x<0.3, and 0.01<y<0.3, and z<0.1 functions as an electromechanically active material. The material may possess electrostrictive or piezoelectric characteristics.
    Type: Application
    Filed: April 6, 2001
    Publication date: March 28, 2002
    Inventors: Yet-Ming Chiang, Sossity A. Sheets, Gregory W. Farrey, Nesbitt W. Hagood, Andrey Soukhojak, Haifeng Wang