发明授权
- 专利标题: Process for preparing an internal latent image silver halide emulsion
- 专利标题(中): 制备内部图像银膜乳液的方法
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申请号: US559452申请日: 1990-07-25
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公开(公告)号: US5081009A公开(公告)日: 1992-01-14
- 发明人: Hatsumi Tanemura , Sadanobu Shuto , Noriyuki Inoue , Naoyasu Deguchi
- 申请人: Hatsumi Tanemura , Sadanobu Shuto , Noriyuki Inoue , Naoyasu Deguchi
- 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: JPX63-21809 19880201; JPX63-83677 19880405
- 主分类号: G03C1/035
- IPC分类号: G03C1/035 ; G03C1/485
摘要:
A direct positive photosensitive material composed of a support having thereon at least one photosensitive emulsion layer comprising non-prefogged internal latent image silver halide grains and at least one compound represented by formulae (I), (II), (III) or (IV): ##STR1## wherein M.sub.1 represents hydrogen, a cation or a protective group capable of being cleaved by an alkali; and Z represents an atomic group necessary for forming a 5-membered or 6-membered substituted or unsubstituted ring selected from a heterocyclic ring and a condensed heterocyclic ring; ##STR2## wherein Z.sub.1 represents an alkyl group containing from 1 to 18 carbon atoms, an aryl group containing from 6 to 18 carbon atoms or a heterocyclic group; Y.sub.1 and Y.sub.2, which may be the same or different, each represents an atomic group necessary for forming an aromatic ring containing from 6 to 18 carbon atoms or a heterocyclic ring; M represents a metal atom or an organic cation; and n is an integer of 2 to 10.
公开/授权文献
- US5606902A Linear actuator 公开/授权日:1997-03-04
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