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    • 74. 发明授权
    • Silver halide photographic emulsion
    • US4970141A
    • 1990-11-13
    • US154555
    • 1988-02-10
    • Akihiko IkegawaMasaki OkazakiYuichi Ohashi
    • Akihiko IkegawaMasaki OkazakiYuichi Ohashi
    • G03C1/18G03C1/29
    • G03C1/29
    • A silver halide photographic emulsion containing at least one of the compounds of formula (I) and at least one of the compounds of formula (III), or further containing at least one of the compounds of formula (II) besides the above at least two compounds: ##STR1## wherein R.sub.0, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 each represent various groups; X.sub.1.sup..crclbar., X.sub.2.sup..crclbar. and X.sub.3.sup..crclbar. each represent counter anions; l, m and n are each 0 or 1; Z.sub.1 and Z.sub.2 each represent nonmetal atomic groups necessary for forming unsubstituted or substituted benzene rings, or unsubstituted or substituted naphthalene rings; and Z.sub.3 and Z.sub.4 each represent nonmetal atomic groups necessary for forming unsubstituted or substituted naphthalene rings.The silver halide photographic emulsions are enhanced in spectral light-sensitivity of green wavelength region, and photographic light-sensitive materials prepared using these emulsions are not only enhanced in spectral sensitivity of green short wavelength region, but also excellent in inhibiting fog increase and sensitivity lowering during preservation.
    • 75. 发明授权
    • Heat-developable light-sensitive material comprising a sensitizing dye
    • 包含感光染料的可热显影的感光材料
    • US4965181A
    • 1990-10-23
    • US492266
    • 1990-02-28
    • Seiiti KuboderaAkihiko IkegawaMasaki Okazaki
    • Seiiti KuboderaAkihiko IkegawaMasaki Okazaki
    • G03C1/18G03C1/498G03C8/40
    • G03C1/18G03C1/49854
    • A heat-developable light-sensitive material comprising a support having provided thereon a light-sensitive layer comprising a silver halide which is spectrally sensitized with at least one dye represented by formula (I): ##STR1## wherein R.sub.0 and R.sub.1, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a halogen atom, an alkoxycarbonyl group, an acylamino group, an acyl group, a cyano group, a carbamoyl group, a sulfamoyl group, a carboxyl group, or an acyloxy group; provided that at least one of R.sub.0 and R.sub.1 represents a group other than a hydrogen atom; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.3 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, or an acylamino group; provided that when R.sub.3 represents an aryl group, R.sub.0 and R.sub.1 each represents a group other than an aryl group; the group represented by R.sub.3 has a value of S of 544 or less wherein S is represented by formula (Z):S=3.536L-2.661B+535.4 (Z)wherein L represents the length of the group R.sub.3 along the axis of the bond between the group R.sub.3 and the center of the benzene nucleus to which the group R.sub.3 is connected, and B represents the smaller value of B.sub.1 +B.sub.4 and B.sub.2 +B.sub.3 wherein B.sub.1, B.sub.2, B.sub.3, and B.sub.4 each represents the width of the group R.sub.3 which are measured at their maximum points and perpendicular to said axis and each other, provided that B.sub.1 is the smallest value and B.sub.2, B.sub.3, and B.sub.4 are successively larger; R.sub.4 and R.sub.5, which may be the same or different, each represents an alkyl group; X represents an anion; and n is 0 or 1, as required to satisfy charge balance.
    • 一种可热显影的感光材料,其包括在其上设置有感光层的支撑体,所述感光层包含用至少一种由式(I)表示的染料进行光谱增感的卤化银:其中R 0和R 1, 可以相同或不同,分别表示氢原子,烷基,芳基,烷氧基,芳氧基,卤素原子,烷氧基羰基,酰基氨基,酰基,氰基, 氨基甲酰基,氨磺酰基,羧基或酰氧基; 条件是R 0和R 1中的至少一个表示除氢原子以外的基团; R2表示氢原子,烷基或芳基; R3表示烷基,芳基,烷氧基,芳氧基,酰基,酰氧基,烷氧基羰基或酰氨基; 条件是当R 3表示芳基时,R 0和R 1各自表示除芳基以外的基团; 由R3表示的基团的S值为544以下,其中S由式(Z)表示:S = 3.536L-2.661B + 535.4(Z)其中L表示基团R3沿着 组R3与基团R3所连接的苯环的中心之间的键,B表示B1 + B4和B2 + B3的较小值,其中B1,B2,B3和B4各自表示基团的宽度 R3,其最大点和垂直于所述轴线彼此测量,条件是B1是最小值,B2,B3和B4相继较大; R 4和R 5可以相同或不同,各自表示烷基; X表示阴离子; n为0或1,满足电荷平衡的要求。
    • 76. 发明授权
    • Silver halide photographic emulsion
    • US4889796A
    • 1989-12-26
    • US136991
    • 1987-12-23
    • Akihiko IkegawaYuichi OhashiMasaki Okazaki
    • Akihiko IkegawaYuichi OhashiMasaki Okazaki
    • G03C1/18G03C1/29
    • G03C1/29
    • A silver halide photographic emulsion which contains at least one of the compounds represented by the following general formula (I), and at least one compound selected from the group consisting of the compounds represented by the general formula (II) and the compounds represented by the general formula (III): General formula (I) ##STR1## wherein R.sub.0 and R.sub.1 may be the same or different, and represent hydrogen atoms, alkyl, aryl, alkoxy, aryloxy groups, halogen atoms, alkoxycarbonyl, acylamino, acyl, cyano carbamoyl, sulfamoyl, carboxyl, or acyloxy groups under the condition that R.sub.0 and R.sub.1 do not represent hydrogen atoms at the same time; R.sub.2 represents a hydrogen atom, alkyl, or aryl, R.sub.3 represents alkyl, aryl, alkoxy, aryloxy, acyl, acyloxy, alkoxycarbonyl, or acylamino group and moreover R.sub.3 is required to be a substituent having such L and B that S value is 544 or less in the equation ofS=3.536L-2.661B+535.4wherein L (its unit is .ANG.) represents "L" as a STERIMOL parameter, and B (its unit is .ANG.) represents the smaller value among B.sub.1 +B.sub.4 and B.sub.2 +B.sub.3 which are STERIMOL parameters, under the condition that R.sub.1 and R.sub.3, or R.sub.0 and R.sub.3 do not represent aryl groups at the same time; R.sub.4 and R.sub.5 may be the same, and represent alkyl groups; X.sub.1.sup..crclbar. represents a counter anion; and l is 0 or 1, and when an inner salt is formed, l is 0; General formula (II) ##STR2## wherein Z.sub.1 and Z.sub.2 may be the same or different, and represent nonmetal atomic groups necessary for forming benzene rings, or naphthalene rings under the condition that Z.sub.1 and Z.sub.2 do not form naphthalene rings at the same time, and under the further condition that when Z.sub.1 and/or Z.sub.2 represent benzene rings having a substituent, the substituent does not represent a substituent defined as R.sub.3 ; R.sub.7 has the same significance with R.sub.2 ; R.sub.6 and R.sub.8 have the same significances with R.sub.4 and R.sub.5 respectively; X.sub.2.sup..crclbar. has the same significance with X.sub.1.sup..crclbar. ; and n has the same significance with l; General formula (III) ##STR3## wherein Z.sub.3 and Z.sub.4 may be the same or different, and represent nonmetal atomic groups necessary for forming benzene rings; Y represents a sulfur atom or a selenium atom; R.sub.9 and R.sub.11 have the same significances with R.sub.4 and R.sub.5 respectively; R.sub.10 has the same significance with R.sub.2 ; X.sub.3.sup..crclbar. has the same significance with X.sub.1.sup..crclbar., and n has the same significance with l.Photographic light-sensitive materials which have been coated with this emulsion have elevated spectral sensitivities in green short wavelength region and excellent preservabilities and stabilities.
    • 80. 发明授权
    • Silver halide photographic emulsion
    • 卤化银照相乳剂
    • US4800154A
    • 1989-01-24
    • US919418
    • 1986-10-16
    • Masaki OkazakiHaruo Takei
    • Masaki OkazakiHaruo Takei
    • C07D277/62C07D293/12C09B23/02C09B23/10G03C1/10G03C1/12G03C1/08G03C1/19G03C1/24
    • G03C1/12C09B23/02C09B23/10C09B23/102
    • A silver halide photographic emulsion comprising at least one spectral sensitizing dye having the following general formula (I):Dye--J.sup.1 --CONH--J.sup.2 --NHNHG--R (I)wherein Dye represents a dye residue capable of becoming a spectral sensitizing dye; J.sup.1 represents a substituted or unsubstituted alkylene group, a substituted or unsubstituted arylene group, a substituted or unsubstituted aralkylene group, or a substituted or unsubstituted alkarylene group; J.sup.2 represents a substituted or unsubstituted arylene group; R represents hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; and G represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or a substituted or unsubstituted iminomethylene group.
    • 包含至少一种具有以下通式(I)的光谱增感染料的卤化银照相乳剂:染料-J1-CONH-J2-NHNHG-R(I)其中染料代表能够变成光谱增感染料的染料残留物; 取代或未取代的亚芳基,取代或未取代的亚芳基或取代或未取代的亚烷基; J2表示取代或未取代的亚芳基; R表示氢原子,取代或未取代的烷基,取代或未取代的芳基,取代或未取代的烷氧基或取代或未取代的芳氧基; G表示羰基,磺酰基,亚砜氧基,磷酰基或取代或未取代的亚氨基亚甲基。