EP0087880A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Konica Minolta Inc
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Filing: 1983-02-14
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Granted: —
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Expires: 2003-02-14
Abstract
Abstract A silver halide photographic material comprises a support formed on which are two or more layers that are sensitive to light of substantially the same spectral region, but have different light sensitivity. At least one of the layers, other than the layer having maximum light sensitivity contains at least 40 mg, per 100 g of silver, of a water-soluble compound containing an element of Group VIII of the Periodic Table which has a molecular weight of 100 or more, e.g. a ruthenium, rhodium, palladium, osmium, iridium or platinum compound. The material has a wide latitude for exposure, and this latitude will not vary greatly during storage.
Inventors
- 👤 Hiroshi Menjo
- 👤 Yoshikazu Watanabe
- 👤 Nobuo Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 00:46
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09; G03C1/46; G03C2001/093; G03C2001/094
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A silver halide photographic material comprising a support on which are formed two or more layers that are sensitive to light of substantially the same spectral region but having different light sensitivity, characterized in that at least one of the layers, other than the layer having maximum light sensitivity, contains at least 40 mg, per 100 g of silver, of a water-soluble compound of an element of Group VIII of the Periodic Table which has a molecular weight of 100 or more.
Claim 2
Dependent Claim
82 words
A silver halide photographic material comprising a support on which are formed two or more layers that are sensitive to light of substantially the same spectral region but having different light sensitivity, characterized in that at least one of the layers, other than the layer having maximum light sensitivity, contains at least 40 mg, per 100 g of silver, of a water-soluble compound of an element of Group VIII of the Periodic Table which has a molecular weight of 100 or more.
Claim 3
Dependent Claim
32 words
A silver halide photographic material according to Claim 1, characterized in that said water-soluble compound is a salt of a metal of Group VIII 5 or VIII 6 of the Periodic Table.
Claim 4
Dependent Claim
22 words
A silver halide photographic material according to Claim 2 characterized in that said water-soluble compound is a rhodium, iridium or platinum salt.
Claim 5
Dependent Claim
21 words
A silver halide photographic material as claimed in Claim 1 or 2 characterized in that said water-soluble compound is ammonium chloropalladate.
Claim 6
Dependent Claim
21 words
A silver halide photographic material as claimed in Claim 1 or 2 characterized in that said water-soluble compound is ammonium chloroplatinate.
Claim 7
Dependent Claim
21 words
A silver halide photographic material as claimed in Claim 1 or 2 characterized in that said water-soluble compound is ammonium hexachloroiridate.
Claim 8
Dependent Claim
21 words
A silver halide. photographic material as claimed in Claim 1 or 2 characterized in that said water-soluble compound is ammonium hexachloroosmate-IV).
Claim 9
Dependent Claim
21 words
A silver halide photographic material as claimed in Claim 1 or 2 characterized in that said water-soluble compound is ammonium hexachlororhodate.
Claim 10
Dependent Claim
44 words
A silver halide photographic material according to any preceding Claim characterized in that at least one of the layers, other than that having maximum light sensitivity, contains said water-soluble compound in an amount from 40 mg to 500 mg per 100 g of silver.
References Cited (Backward Citations)
No citation records indexed.
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