发明授权
- 专利标题: Direct positive silver halide photographic emulsions
- 专利标题(中): 直接正卤化银照相乳剂
-
申请号: US675744申请日: 1984-11-28
-
公开(公告)号: US4599300A公开(公告)日: 1986-07-08
- 发明人: Akira Tanaka , Hidetoshi Miura , Masao Koga
- 申请人: Akira Tanaka , Hidetoshi Miura , Masao Koga
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Paper Mills, Ltd.
- 当前专利权人: Mitsubishi Paper Mills, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX58-230382 19831206
- 主分类号: G03C1/20
- IPC分类号: G03C1/20 ; C09B23/00 ; G03C1/22 ; G03C1/485 ; G03C5/24 ; G03C1/02
摘要:
There is provided a high speed and high contrast direct positive silver halide photographic emulsion which is free of discoloration by containing therein a dimethine dye having an indolenine ring which contains a cyano group as a substituent.
公开/授权文献
信息查询
IPC分类: