Patents by Inventor Rudchenko F. Vladimir

Rudchenko F. Vladimir 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).

  • Cyan coupler for silver halide color photographic light-sensitive material
    Patent number: 5679506
    Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer containing silver halide grains, wherein said silver halide emulsion layer contains a cyan dye forming coupler represented by the following formula (1) or (2), ##STR1##
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 21, 1997
    Assignee: Konica Corporation
    Inventors: Satoru Ikesu, Rudchenko F. Vladimir, Mitsuhiro Fukuda, Yutaka Kaneko
  • Method of forming silver halide photographic cyan dye image
    Patent number: 5415990
    Abstract: A novel cyan coupler for photographic dye, a process of forming a dye using the coupler and a photographic material containing the cyan coupler are disclosed. The coupler is represented by formula ##STR1## R, R.sub.1, X, m and n are defined in the specification.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: May 16, 1995
    Assignee: Konica Corporation
    Inventors: Yutaka Kaneko, Rudchenko F. Vladimir, Satoru Ikesu