(19) |
 |
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(11) |
EP 0 613 042 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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20.08.1997 Bulletin 1997/34 |
(43) |
Date of publication A2: |
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31.08.1994 Bulletin 1994/35 |
(22) |
Date of filing: 23.02.1994 |
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(84) |
Designated Contracting States: |
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BE DE FR GB NL |
(30) |
Priority: |
25.02.1993 JP 59286/93 19.04.1993 JP 91651/93
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(71) |
Applicant: FUJI PHOTO FILM CO., LTD. |
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Kanagawa (JP) |
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(72) |
Inventor: |
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- Kashi, Yasuo,
c/o Fuji Photo Film Co., Ltd.
Kanagawa (JP)
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(74) |
Representative: Grünecker, Kinkeldey,
Stockmair & Schwanhäusser
Anwaltssozietät |
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Maximilianstrasse 58 80538 München 80538 München (DE) |
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(54) |
Silver halide emulsion, photographic light-sensitive material, and process for preparation
of seed crystal emulsion |
(57) A silver halide emulsion is described, comprising tabular silver halide grains having
an aspect ratio of not less than 3.0 and a grain diameter of not less than 0.8 µm
as calculated in terms of sphere in a proportion of not less than 50% of all silver
halide grains as calculated in terms of projected area, prepared by a process which
comprises desalting a silver halide emulsion comprising tabular silver halide grains
having an aspect ratio of not less than 2.0 in a proportion of not less than 50% of
all silver halide grains as calculated in terms of projected area, and then using
the emulsion as a seed crystal emulsion. A silver halide photographic material comprising
a support having provided thereon at least one layer containing the silver halide
emulsion and a process for the preparation of the seed crystal emulsion are also described.