Appeal No. 1997-3701 7
Application No. 08/141,457
of the claimed subject matter. Furthermore, each of Ichijima, Lestina, and Ogawa
disclose the addition of compounds for preventing fog, and/or stabilizing photographic
performance.
Specifically, Ichijima discloses a silver halide photographic light sensitive material
containing a red silver halide emulsion layer among other color emulsion layers. Among
the couplers disclosed by Ichijima, numbers (56) to (60), (64), and (65) fall within the
magenta couplers of the claimed subject matter. Furthermore, 5-pyrazolone magenta
couplers are generally disclosed at column 75, lines 31 to 41. We find that the
photographic emulsions can contain various additional compounds for the purpose of
preventing fog or stabilizing photographic performances. See column 78, lines 30-34.
Lestina discloses silver halide emulsions comprising magenta forming couplers
containing 5-pyrazolone coupler moieties. See column 1, lines 13-36 and column 2,
lines 44-47. Pyrazolone couplers are disclosed at column 3, line 37 through column 6,
line 7. We find that the coupler of Example 17 falls within the scope of the claimed
subject matter. We further find that the couplers may be used in combination with
stabilizing agents. See column 6, lines 9-13.
Ogawa discloses photographic couplers. See column 1, lines 6-9. We find that
the couplers include magenta color image forming couplers including those of the 5-oxo-
2-pyrazoline type. See column 4, lines 58-60 and column 5, lines 27-32 (VII). The
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