Global Patent Index - EP 0573066 B1

EP 0573066 B1 20020220 - Imaging process using an internal latent image type direct positive silver halide emulsion

Title (en)

Imaging process using an internal latent image type direct positive silver halide emulsion

Title (de)

Bilderzeugungsverfahren, das eine direkt-positive Innenlatentbild-Silberhalogenidemulsion verwendet

Title (fr)

Procédé de formation des images utilisant une émulsion positive-directe à l'halogénure d'argent du type à image latente interne

Publication

EP 0573066 B1 20020220 (EN)

Application

EP 93109036 A 19930604

Priority

  • JP 14566492 A 19920605
  • JP 22153792 A 19920820

Abstract (en)

[origin: EP0573066A1] Disclosed is an internal latent image type direct positive silver halide emulsion, which is high in sensitivity and contrasty in low-density portions, comprising a dispersion medium containing at least one metal complex represented by the following general formula (I) and silver halide grains formed therein; and a color diffusion transfer photographic film unit containing the internal latent image type direct positive silver halide emulsion: [M(CN)6]<n-> (I> wherein M represents Cr, Mn, Co, Ir, Ru, Rh, Re or Os; and n is 3 or 4.

IPC 1-7

G03C 1/485; G03C 8/08

IPC 8 full level

G03C 1/015 (2006.01); G03C 1/035 (2006.01); G03C 1/07 (2006.01); G03C 1/09 (2006.01); G03C 1/485 (2006.01); G03C 8/08 (2006.01)

CPC (source: EP)

G03C 1/48538 (2013.01); G03C 8/08 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0573066 A1 19931208; EP 0573066 B1 20020220; DE 69331591 D1 20020328; DE 69331591 T2 20020627; JP 2913529 B2 19990628; JP H0651423 A 19940225

DOCDB simple family (application)

EP 93109036 A 19930604; DE 69331591 T 19930604; JP 22153792 A 19920820