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    • 5. 发明专利
    • DE69127002D1
    • 1997-09-04
    • DE69127002
    • 1991-01-30
    • FUJI PHOTO FILM CO LTD
    • ONO MICHIOHANAKI KOUICHISAKANOUE KEIHIRANO SHIGEOYAMAMOTO MITSURU
    • G03C7/305
    • A novel silver halide color photographic material is provided comprising on a support at least one silver halide emulsion layer containing at least one of the compounds represented by formulae (I) to (III): wherein R11 represents or in which R13 represents an alkyl, aryl or heterocyclic group, and R14 and R15 each represents hydrogen, alkyl group or aryl group; R12 represents a substituent having a Hammett's substituent constant sigma p of 0.3 or less; n represents an integer 0 to 2, and when n is 2, the two R12's may be the same or different; B represents a group which releases PUG after being separated from a hydroquinone nucleus; PUG represents a development inhibitor; l represents an integer; and A and A' each represents hydrogen or a group capable of being removed by an alkali; R11 and R12, R11 and A or A', R12 and A or A', and two R12's may together form a ring; wherein Q represents an atomic group containing at least one hetero atom and is required for the formation of a heterocyclic group containing 5 or more members together with carbon atoms connected thereto; R represents a group capable of substituting on the hydroquinone nucleus; and B, PUG, l , A and A' are as defined above; wherein R31 represents an alkyl group containing two or more carbon atoms in which the carbon atom adjacent to the carbonyl group is not substituted by a hetero atom, a cycloalkyl group, an aryl group or a heterocyclic group; R32 and R33 each represents hydrogen or a substituent having a Hammett's substituent constant sigma p of 0.3 or less; and B, PUG, l , A and A' are as defined above. In a preferred embodiment, the compound represented by the general formula (III) is one represented by the general formula (IIIA): wherein R34 represents a substituent; PUG, A, A', B and l have the same meanings as defined in the general formula (III); and n' represents an integer 2 or more. The compound represented by the general formula (III) is also one represented by the general formula (IIIB): wherein R35 represents a substituent; A, A', B, PUG, and l have the same meanings as defined in formula (III); and m represents an integer 1 to 5, and when m is 2 ormore, the plurality of R35's may be the same or different.
    • 9. 发明专利
    • AT300059T
    • 2005-08-15
    • AT01106357
    • 2001-03-16
    • FUJI PHOTO FILM CO LTD
    • OYA TOYOHISAKATOH KAZUNOBUHIRANO SHIGEO
    • G03C1/498G03C7/305
    • A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: wherein, in the formula (1), V to V each independently represent hydrogen atom or a substituent, and V represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q -NHNH-V wherein, in the formula (2), Q represents a 5- to 7-membered unsaturated ring bonding to NHNH-V at a carbon atom, and V represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group. The photothermographic material of the present invention shows good photographic properties including sensitivity, fog and so forth, and enables control of color tone of the photothermographic material in an arbitrary wavelength region even as a monosheet type photothermographic material.