Silver halide photographic emulsion and silver halide...

Details Silver halide photographic emulsion and silver halide... Silver halide photographic emulsion and silver halide...

2007-06-12

2007-06-12

Visconti, Geraldina (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

C430S502000, C430S605000, C430S600000, C430S603000, C430S608000

Reexamination Certificate

active

11371884

ABSTRACT:
A silver halide photographic emulsion, wherein 70% or more of the total projected area of silver halide grains is occupied by silver halide grains satisfying the following requirements (a) to (d).(a) It is composed of a tabular silver halide host grain with an aspect ratio of 12 or more having two mutually parallel principal planes and a silver halide protrusion portion bonded by epitaxial junction on the surface of the host grain.(b) The silver bromide content rates of the host grain and the protrusion portion both are 70 mol % or more.(c) When the average silver iodide content rate of all grains is I mol %, the average silver iodide content rate of the region of 8%, based on the silver amount of the host grain, of the outer shell of the host grain is (I+12) mol % or less.

REFERENCES:
patent: 5494789 (1996-02-01), Daubendiek et al.
patent: 6607874 (2003-08-01), Ihama et al.
patent: 6720134 (2004-04-01), Miyamoto et al.
patent: 6994953 (2006-02-01), Matsuda et al.
patent: 2005/0214698 (2005-09-01), Haraguchi et al.
patent: 8-69069 (1996-03-01), None
patent: 2002-278007 (2002-09-01), None
patent: 2003-15245 (2003-01-01), None

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