公开(公告)号：US06936403B2

公开(公告)日：2005-08-30

申请号：US10315227

申请日：2002-12-10

申请人： Yukio Maekawa ,  Tatsuo Heki

发明人： Yukio Maekawa ,  Tatsuo Heki

IPC分类号： G11B5/712 ,  G11B5/706 ,  G11B5/714 ,  G11B5/73 ,  G11B7/24 ,  G11B7/242 ,  G11B7/245 ,  G11B7/26 ,  G11B9/08 ,  H01F1/00

CPC分类号： G11B5/706 ,  B82Y25/00 ,  B82Y30/00 ,  G11B5/70605 ,  G11B5/714 ,  G11B5/7305 ,  G11B7/242 ,  G11B7/245 ,  G11B9/08 ,  H01F1/0072 ,  H01F1/10 ,  Y10S430/146

摘要： A recording medium which has, formed on a substrate, a recording layer that contains spherical grains having a substantially uniform grain size and including inorganic grains. Preferably, an undercoat layer having no substantial information recording ability is formed between the substrate and the recording layer.

摘要翻译： 一种记录介质，其在基板上形成包含具有大致均匀晶粒尺寸的球形颗粒并包括无机颗粒的记录层。 优选地，在基板和记录层之间形成没有实质的信息记录能力的底涂层。

公开(公告)号：US4970140A

公开(公告)日：1990-11-13

申请号：US242978

申请日：1988-09-12

申请人： Tatsuo Heki ,  Tetsuo Yoshida

发明人： Tatsuo Heki ,  Tetsuo Yoshida

IPC分类号： G03C1/485

CPC分类号： G03C1/48538

摘要： A direct positive photographic light-sensitive material is disclosed which comprises at least two direct positive emulsion layers having the same color sensitivity, wherein at least one hydrophilic colloid layer is provided between the direct positive emulsion layers. A direct positive photographic light-sensitive material having a high graininess, a soft tone, and a high picture quality can be obtained.

摘要翻译： 公开了一种直接正性感光材料，其包含至少两个具有相同颜色灵敏度的直接阳性乳剂层，其中在直接阳性乳剂层之间提供至少一个亲水胶体层。 可以获得具有高粒度，柔和色调和高图像质量的直接正性摄影感光材料。

公开(公告)号：US4863845A

公开(公告)日：1989-09-05

申请号：US82922

申请日：1987-08-06

申请人： Ashita Murai ,  Hiroyuki Mifune ,  Tatsuo Heki

发明人： Ashita Murai ,  Hiroyuki Mifune ,  Tatsuo Heki

IPC分类号： G03C1/005 ,  G03C1/485 ,  G03C8/06

CPC分类号： G03C1/48576 ,  Y10S430/141 ,  Y10S430/144

摘要： In an internal latent image type direct positive silver halide emulsion containing core/shell type silver halide grains wherein at least light-sensitive sites of the silver halide internal core which has been subjected to doping with metal ions or chemical sensitization, or both, is covered with a silver halide outer shell, the improvement wherein a photographic additive which is adsorbed on silver halide in said emulsion or interacts with silver ion, said additive being a compound which functions to change the crystal form or particle size of the silver halide grains in the case of the formation thereof or acts as a sensitizer or a sensitizing assistant in the case of chemically sensitizing the core particles but has a harmful influence on photographic properties if it remains after use of it, is deactivated by a deactivator prior to completion of the formation of said core/shell type silver halide grains or completion of surface chemical ripening of said grains. A process for producing the above internal latent image type direct positive silver halide emulsion is also disclosed.

摘要翻译： 在包含核/壳型卤化银颗粒的内部潜像型直接正卤化银乳剂中，其至少覆盖已经被金属离子掺杂或化学增感的卤化银内核的光敏部位或两者覆盖 具有卤化银外壳的改进，其中吸附在所述乳液中的卤化银上或与银离子相互作用的照相添加剂，所述添加剂是用于改变卤化银颗粒的结晶形式或粒度的化合物 形成的情况或作为敏化剂或敏化助剂，在对核心颗粒进行化学敏化的情况下，但如果在使用之后仍然对照相特性有影响，则在形成之前由钝化剂失活 的所述核/壳型卤化银颗粒或完成所述颗粒的表面化学成熟。 还公开了制备上述内部潜像型直接正卤化银乳剂的方法。

公开(公告)号：US4469784A

公开(公告)日：1984-09-04

申请号：US423331

申请日：1982-09-24

申请人： Tatsuo Heki ,  Hiroyuki Mifune

发明人： Tatsuo Heki ,  Hiroyuki Mifune

IPC分类号： G03C1/005 ,  G03C1/015 ,  G03C1/02

CPC分类号： G03C1/015 ,  G03C2001/03535 ,  G03C2001/03558

摘要： A silver halide emulsion is disclosed which contains silver halide grains formed in the presence of a silver halide solvent. The solvent is a benzimidazole derivative having a hydrogen atom connected to the nitrogen atom at the 1st position thereof. By using this particular solvent a regular silver halide photographic emulsion having high sensitivity causing less fog is obtained. The silver halide solvent is unexpectedly advantageous in that can be almost completely desorbed from the silver halide grains by washing.

摘要翻译： 公开了一种卤化银乳剂，其含有在卤化银溶剂存在下形成的卤化银颗粒。 溶剂是具有与第1位置的氮原子连接的氢原子的苯并咪唑衍生物。 通过使用这种特定溶剂，获得具有高灵敏度的常规卤化银照相乳剂，其雾度较低。 卤化银溶剂出人意料地是有利的，因为可以通过洗涤几乎完全从卤化银颗粒中脱附。