Appeal No. 2006-1866
Application No. 10/639,537
a second dopant comprising an iridium coordination complex
having ligands each of which are more electropositive than a
cyano ligand;
wherein the first dopant and the second dopants are located
together in a common dopant band in the central portion of the
silver halide grains, where the common dopant band is formed by
concurrently introducing the first and second dopants into the
silver halide grains after at least 70 percent of the silver has
been precipitated for such grains and before 90 percent of the
silver has been precipitated for such grains, and wherein the
second dopant is present in the silver halide pains in a
concentration of at least 10-7 mole/mole of total silver.
The examiner relies upon the following references in the
rejections of the appealed claims:
Olm et al. (Olm) 5,360,712 Nov. 1, 1994
Bell 5,474,888 Dec. 12, 1995
Mydlarz et al. (Mydlarz) 5,783,373 Jul. 21, 1998
Appellants' claimed invention is directed to a radiation-
sensitive emulsion comprising silver halide grains having a
central portion containing first and second dopants comprising
ruthenium, and iridium, respectively. The first and second
dopants are located together in a common dopant band in the
central portion of the grains that is formed by introducing the
dopants into the grains after at least 70 percent, but before
90 percent, of the silver has been precipitated for such grains.
Appealed claims 1-18 stand rejected under 35 U.S.C.
§ 102(b) as being anticipated by Bell. Claims 1-23 stand
-2-
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