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    • 4. 发明授权
    • Silver halide photographic material
    • 卤化银照相材料
    • US4740454A
    • 1988-04-26
    • US886490
    • 1986-07-17
    • Naoyasu DeguchiTetsuro KojimaHideo MiyazakiShigeru OhnoKoki Nakamura
    • Naoyasu DeguchiTetsuro KojimaHideo MiyazakiShigeru OhnoKoki Nakamura
    • G03C1/06C07D285/12C07D285/125C07D285/135G03C1/035G03C1/09G03C7/392G03C1/34G03C1/02
    • G03C1/09G03C7/39276
    • A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains which have a diameter not less than 5 times the thickness thereof and account for at least 50% of the total projected area of the silver halide grains present in the silver halide emulsion layer and the silver halide photographic material also contains at least one compound represented by following general formulae (I), (II), (III) and (IV): ##STR1## wherein R represents a straight chain, branched chain or cyclic alkylene group, a straight chain or branched chain alkenylene group, a straight chain or branched chain aralkylene group or an arylene group; R.sub.1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group; Z represents a hydrogen atom or a polar substituent; X represents a hydrogen atom, a cation necessary for neutralizing the molecule or a precursor; and n represents 0 or 1.The silver halide photographic material has improved image sharpness not only at high spatial frequencies but also at low spatial frequencies.
    • 一种卤化银照相材料,包括其上具有至少一种含有片状卤化银颗粒的感光卤化银乳剂层的载体,所述片状卤化银颗粒的直径不小于其厚度的5倍,并且占总投影面积的至少50% 存在于卤化银乳剂层和卤化银照相材料中的卤化银颗粒还含有至少一种由以下通式(I),(II),(III)和(IV)表示的化合物: (III)其中R表示直链,支链或环状亚烷基,直链或支链亚烯基,直链或支链亚芳基或 亚芳基; R1表示取代或未取代的烷基,取代或未取代的烯基,取代或未取代的芳烷基或取代或未取代的芳基; Z表示氢原子或极性取代基; X表示氢原子,中和该分子或前体所必需的阳离子; 并且n表示0或1.卤化银照相材料不仅在高空间频率下而且在低空间频率下具有改善的图像清晰度。
    • 5. 发明授权
    • Silver halide photographic material
    • 卤化银照相材料
    • US4615970A
    • 1986-10-07
    • US678906
    • 1984-12-06
    • Tetsuro KojimaKoki NakamuraTakashi Toyoda
    • Tetsuro KojimaKoki NakamuraTakashi Toyoda
    • C07D249/14C07D401/04C07D487/04G03C1/34
    • C07D401/04C07D249/14C07D487/04G03C1/34
    • A silver halide photographic material containing at least one of compounds represented by formula (I) and salts thereof in at least one hydrophilic colloidal layer of the silver halide photographic material gives photographic images having stable and excellent quality without being accompanied by the increased formation of fog and increased changes of sensitivity and gradation upon high temperature processing: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic ring group; or one or both of said R.sub.1 and R.sub.2 and said R.sub.3 and R.sub.4 combine with each other to form a ring.
    • 在卤化银照相材料的至少一个亲水性胶体层中含有至少一种由式(I)表示的化合物及其盐的卤化银照相材料使摄影图像具有稳定和优异的质量,而不伴随增加的雾形成 并且在高温处理时增加灵敏度和灰度的变化:其中R1,R2,R3和R4各自表示取代或未取代的烷基,取代或未取代的烯基,取代或未取代的环烷基, 取代或未取代的芳基,或取代或未取代的杂环基团; 或者所述R 1和R 2中的一个或两个并且所述R 3和R 4彼此结合形成环。
    • 9. 发明授权
    • Silver halide color photographic lightsensitive material
    • 卤化银彩色照相感光材料
    • US06541192B2
    • 2003-04-01
    • US09989416
    • 2001-11-21
    • Yasuhiro KatoHisashi MikoshibaNaoto MatsudaTetsuro Kojima
    • Yasuhiro KatoHisashi MikoshibaNaoto MatsudaTetsuro Kojima
    • G03C108
    • C07D487/04G03C7/383
    • A silver halide color photographic lightsensitive material comprising at least one layer on a support, wherein the at least one layer contains a coupler represented by formula (I) below wherein X represents a hydrogen atom, halogen atom, arylthio group, carbamoyloxy group, heterocyclic carbonyloxy group, etc., each of R1 and R2 represents an electron-attracting group having a Hammett's substituent constant &sgr;p value of not less than 0.20, the sum of the &sgr;p values of R1 and R2 being not less than 0.65, each of R3 and R4 represents a alkyl group, alkenyl group, alkynyl group, cycloalkyl group, cycloalkenyl group, etc., or alternatively, R3 and R4 may bond together to form a ring structure; and each of R11 to R15 independently represents a hydrogen atom or a substituent.
    • 一种卤化银彩色照相感光材料,其在载体上包含至少一层,其中所述至少一层包含由下式(I)表示的成色剂,其中X表示氢原子,卤素原子,芳硫基,氨基甲酰氧基,杂环羰氧基 等等,R1和R2各自表示哈米特取代基常数sigmap值不小于0.20的吸电子基团,R1和R2的sigmap值之和不小于0.65,R3和R4各自表示 烷基,烯基,炔基,环烷基,环烯基等,或者R3和R4可以键合在一起形成环结构; R 11〜R 15各自独立地表示氢原子或取代基。
    • 10. 发明授权
    • Method for forming images
    • 图像形成方法
    • US5278025A
    • 1994-01-11
    • US931508
    • 1992-08-21
    • Hisashi OkamuraKazunobu KatohTetsuro Kojima
    • Hisashi OkamuraKazunobu KatohTetsuro Kojima
    • G03C1/06G03C1/34G03C1/43G03C5/305G03C5/26G03C5/30
    • G03C1/061G03C1/34G03C1/43G03C5/305Y10S430/158
    • A method for forming an image comprising the steps of: (a) imagewise exposing silver halide photographic materials; where said photographic material contains (1) a compound represented by formula (I) ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group, an alkoxy group, an aryloxy group, an amino group, a carbamoyl group, or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## or an iminomethylene group; and A.sub.1 and A.sub.2 both represent a hydrogen atom, or one of A.sub.1 or A.sub.2 represents a hydrogen atom and the other represents a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group, and (2) a redox compound that can release a development inhibitor when oxidized; and (b) subjecting said imagewise exposed silver halide photographic materials to development-processing where a bath used in said development-processing contains a nucleation development accelerator.
    • 一种用于形成图像的方法,包括以下步骤:(a)成像曝光卤化银照相材料; 其中所述照相材料包含(1)由式(I)表示的化合物(*化学结构*)(I)其中R 1表示脂族基团或芳族基团; R2表示氢原子,烷基或芳基,烷氧基,芳氧基,氨基,氨基甲酰基或氧羰基; G1表示羰基,磺酰基,磺氧基,(*化学结构*)或亚氨基亚甲基; 和A1和A2均表示氢原子,或A1或A2中的一个表示氢原子,另一个表示取代或未取代的烷基磺酰基,取代或未取代的芳基磺酰基或取代或未取代的酰基,(2) 氧化还原化合物,当氧化时可释放显影抑制剂; 和(b)对所述成像曝光的卤化银照相材料进行显影处理,其中所述显影处理中使用的浴含有成核显影促进剂。