发明授权
US5587281A Method for producing silver halide grain and silver halide emulsion
using the grain
失效
使用该颗粒生产卤化银颗粒和卤化银乳剂的方法
- 专利标题: Method for producing silver halide grain and silver halide emulsion using the grain
- 专利标题(中): 使用该颗粒生产卤化银颗粒和卤化银乳剂的方法
-
申请号: US501959申请日: 1995-07-13
-
公开(公告)号: US5587281A公开(公告)日: 1996-12-24
- 发明人: Mitsuo Saitou , Junichi Yamanouchi , Yoichi Hosoya
- 申请人: Mitsuo Saitou , Junichi Yamanouchi , Yoichi Hosoya
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX6-184128 19940714
- 主分类号: G03C1/005
- IPC分类号: G03C1/005 ; G03C1/043 ; G03C1/07 ; G03C1/047 ; G03C1/035
摘要:
Disclosed is a method for producing silver halide grains containing tabular grains having a thickness of from 0.02 to 0.3 .mu.m and an aspect ratio (diameter/thickness) of from 2 to 50 at a proportion of from 75 to 100% of the total projected area of silver halide grains, which comprises at least nucleation, ripening and growing steps in a dispersion medium solution consisting of water and a dispersion medium, wherein gelatin having the following characteristics (a) occupies from 30 to 100 wt % of said dispersion medium used in said growing step:characteristics (a)the relation between the number percentage of a chemically modified --NH.sub.2 group in the gelatin and the methionine content of the gelatin is in the region a.sub.1 depicted in FIG. 1.Also disclosed is a silver halide emulsion comprising at least a dispersion medium and silver halide grains produced by the above-described method.
公开/授权文献
- US4605627A Plasmid vehicle for cloning in Agrobacterium tumefaciens 公开/授权日:1986-08-12
信息查询