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US 5,633,390 AGranted
Silver halide photographic material containing pyrazolone-pentamethine oxonol dye
AssigneeFuji Photo Film Co., Ltd.
InventorsTetsuo Nakamura, Shigeru Ohno, Kiyoshi Kawai
Life of this patent
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Abstract
The pyrazolone-pentamethine oxonol compound represented by the formula (Ib): ##STR1## in which A.sup.3 is methyl, ethyl or sulfoethyl; each of Q.sub.6 and Q.sub.7 independently is hydrogen, methyl, ethyl or sulfoethyl; M.sup.5 is sodium or potassium; and M.sup.6 is hydrogen, sodium or potassium.
Claims5
A pyrazolone-pentamethine oxonol compound represented by the formula (Ib):
- ##STR40## in which A.sup.3 is methyl, ethyl or sulfoethyl;
- each of Q.sup.6 and Q.sup.7 independently is hydrogen, methyl, ethyl or sulfoethyl;
- M.sup.5 is sodium or potassium;
- and M.sup.6 is hydrogen, sodium or potassium.
1 more element
Dependencies are inferred from the claim text.