Patents by Inventor Ala Pismany

Ala Pismany 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).

  • Method of electrophoretic deposition of ferroelectric films using a tri-functional additive and compositions for effecting same
    Patent number: 6479406
    Abstract: An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: November 12, 2002
    Assignee: Cerel (Ceramic Technologies) Ltd.
    Inventors: Leah Gal-Or, Rony Goldner, Nina Sezin, Ala Pismany, David Brandon
  • Method of electrophoretic deposition of ferroelectric films using a tri-functional additive and compositions for effecting same
    Publication number: 20010003681
    Abstract: An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature.
    Type: Application
    Filed: December 11, 2000
    Publication date: June 14, 2001
    Applicant: Cerel (Ceramic Technologies) Ltd.
    Inventors: Leah Gal-Or, Rony Goldner, Nina Sezin, Ala Pismany, David Brandon
  • Method of electrophoretic deposition of ferroelectric films using a trifunctional additive and compositions for effecting same
    Patent number: 6127283
    Abstract: An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 3, 2000
    Assignee: Cerel (Ceramic Technologies) Ltd.
    Inventors: Leah Gal-Or, Rony Goldner, Nina Sezin, Ala Pismany, David Brandon