Patents by Inventor Vitaly S. Doev

Vitaly S. Doev 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 recording information on a medium in the form of electrical signals
    Patent number: 4438443
    Abstract: A method consisting in that a portion of the working layer is acted upon at first by a uniform thermal field and simultaneously or successively by a uniform vector field whose vector lines are perpendicular to the carried surface. At least one of the fields is obtained by converting the electrical signals transmitting the information being recorded. When recording on a carrier portion heated to a temperature higher that the softening temperature of the working layer binder (3), particles (4) are aligned along the vector lines whereby optical density of said area within the medium is changed according to the recorded information. The time is started to be fixed at the moment the vector field is no longer applied.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: March 20, 1984
    Assignee: Institut Radiotekhniki I Elektroniki Akademii Nauk SSSR
    Inventors: Vitaly S. Doev, Iosif M. Kotelyansky, Valery B. Kravchenko, Yakov A. Monosov, Valery A. Shakhunov, Jury L. Kopylov