会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Development processing method
    • 开发处理方法
    • US5976758A
    • 1999-11-02
    • US995146
    • 1997-12-19
    • Kouta FukuiSenzo SasaokaKohzaburoh Yamada
    • Kouta FukuiSenzo SasaokaKohzaburoh Yamada
    • G03C5/29G03C1/06G03C1/295G03C5/30G03C5/305G03C5/31
    • G03C5/305G03C1/061G03C5/30G03C5/31
    • A development processing method which comprises the steps of: imagewise exposing a silver halide photographic light-sensitive material; and developing the exposed photographic material with a developing solution, wherein the silver halide photographic material comprises a support having thereon at least one light-sensitive silver halide emulsion layer, at least one of the silver halide emulsion layer and other hydrophilic colloidal layers containing at least one hydrazine derivative; and wherein the developing solution is substantially free from a dihydroxybenzene compound, has a pH of from 9.0 to 10.5 and contains (1) at least one ascorbic acid developing agent, (2) at least one 1-phenyl-3-pyrazolidone auxiliary developing agent and (3) a compound represented by the following formula (I): ##STR1## wherein R.sub.1 to R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom or a substituent group bonded to the ring in formula (I) by a carbon atom, a nitrogen atom, an oxygen atom, a sulfur atom or a phosphorus atom, with the proviso that neither R.sub.1 nor R.sub.3 represents a hydroxyl group and that at least one of R.sub.1 to R.sub.4 is an --SM group, wherein M represents a hydrogen, atom, an alkali metal atom or an ammonium group.
    • 一种显影处理方法,包括以下步骤:将卤化银照相感光材料成像曝光; 并用显影液显影所述曝光的照相材料,其中所述卤化银照相材料包括其上具有至少一个感光卤化银乳剂层的载体,所述卤化银乳剂层和至少含有至少一种 一种肼衍生物; 并且其中所述显影液基本上不含二羟基苯化合物,其pH为9.0〜10.5,并含有(1)至少一种抗坏血酸显影剂,(2)至少一种1-苯基-3-吡唑烷酮辅助显影剂 和(3)由下式(I)表示的化合物:其中R 1至R 4可以相同或不同,并且各自表示通过式(I)中与环结合的氢原子,卤素原子或取代基, 碳原子,氮原子,氧原子,硫原子或磷原子,条件是R1和R3都不表示羟基,并且R1至R4中的至少一个为-SM基团,其中M表示 氢原子,碱金属原子或铵基。
    • 5. 发明授权
    • Method of forming image providing a change in sensitivity by altering
the pH of the developer
    • US4873173A
    • 1989-10-10
    • US110981
    • 1987-10-21
    • Senzo SasaokaTetsuo YoshidaNobuaki Inoue
    • Senzo SasaokaTetsuo YoshidaNobuaki Inoue
    • G03C5/29G03C1/06G03C5/30
    • G03C1/061G03C5/30
    • A method of forming an image is provided. The method comprises the steps of (a) imagewise exposing a photographic material which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer and which contains a hydrazine compound represented by the following general formula (I) in the emulsion layer or a hydrophilic colloid layer adjacent thereto, the photographic material being designed so that a difference in sensitivity (sensitivity being defined as log E corresponding to the density of fog+2.0) between (1) the photographic material is development-processed with a developing solution having a sulfite ion concentration of 0.15 mole/l or more, a potassium ion concentration of 0.2 mole/l or more and a pH value ranging from 10.5 to 12.3 and (2) the photographic material is development-processed with the same developing solution as described above, except that the pH value was lowered by 1.0, (.DELTA.log E), is 0.7 or less, and moreover, the gamma value obtained in (1) is 10 or more and the gamma value obtained in (2) is 5 or more: ##STR1## wherein A represents an aliphatic group, or an aromatic group; B represents a formyl group, an acyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxcarbonyl group, a sulfinamoyl group, an alkoxysulfonyl group, a thioacyl group, a thiocarbamoyl group, a sulfamoyl group, or a heterocyclic group; both R.sub.0 and R.sub.1 represent a hydrogen atom, or one of them represents a hydrogen atom and the other represents an alkysulfonyl group, an arylsulfonyl group, or an acyl group; and B, R.sub.1 and the nitrogen atom attached thereto may form a partial structure of hydrazone, and (b) developing the exposed material with a developer. The method realizes superhigh contrast and high resolution images.