Patents by Inventor Liudmilla Cherniak

Liudmilla Cherniak 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).

  • Patent number: 5919347
    Abstract: A method of electrophoretic deposition of a ceramic green body. A ceramic powder is optionally washed with a polar solvent such as deionized water, dried, and suspended in a polar organic solvent in a proportion of at least 20% by weight. A positive surface charge is imposed on the suspended particles by conventional means such as ball milling or ultrasonic treatment. A green body is deposited on a cathode by passing a direct electric current of constant current density through the suspension. The density of the green body generally is at least 70% of theoretical. The density of the fired body generally is at least 98% of theoretical. A layered green body may be deposited by using several suspensions of differing global ceramic composition and depositing each microlayer in a different suspension.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: July 6, 1999
    Assignee: Cerel (Ceramic Technologies) Ltd.
    Inventors: Leah Gal-Or, David Brandon, Roni Goldner, Liudmilla Cherniak, Leonid Perlin, Nina Sezin, Sonia Liubovich