US4683192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic emulsions and process for producing them
Assignee: Fujifilm Holdings Corp
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Filing: 1985-04-19
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Granted: 1987-07-28
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Expires: 2005-04-19
Abstract
Abstract A silver halide photographic emulsion containing silver halide grains, the surface of which is a (110) crystal plane substantially composed of silver bromide or silver iodobromide is disclosed. A process for producing a silver halide photographic emulsion containing silver halide grains the surface of which is substantially composed of silver bromide or silver iodobromide, which comprises performing growth of the silver halide grains in an aqueous medium in the presence of a hydrophilic protective colloid and a compound accelerating the development of a (110) crystal plane is also disclosed.
Inventors
- 👤 Shingo Nishiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:17
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/035; G03C2200/00; G03C2200/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
23 words
A silver halide photographic emulsion containing silver halide grains the surface of which is a (110) crystal plane substantially composed of silver iodobromide.
Claim 2
Dependent Claim
23 words
A silver halide photographic emulsion containing silver halide grains the surface of which is a (110) crystal plane substantially composed of silver iodobromide.
Claim 3
Dependent Claim
57 words
A process for producing a silver halide photographic emulsion containing silver halide grains the surface of which is substantially composed of silver iodobromide, which comprises performing growth of the silver halide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 4
Dependent Claim
57 words
A process for producing a silver halide photographic emulsion containing silver halide grains the surface of which is substantially composed of silver iodobromide, which comprises performing growth of the silver halide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 5
Dependent Claim
57 words
A silver halide photographic emulsion containing a silver halide grains the surface of which is substantially composed of silver iodobromide, said emulsion being prepared by performing growth of the silver halide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 6
Dependent Claim
57 words
A silver halide photographic emulsion containing a silver halide grains the surface of which is substantially composed of silver iodobromide, said emulsion being prepared by performing growth of the silver halide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 7
Dependent Claim
26 words
A silver halide photographic emulsion containing silver halide grains the surface of which is a (110) crystal plane, wherein the silver halide is solely silver bromide.
Claim 8
Dependent Claim
26 words
A silver halide photographic emulsion containing silver halide grains the surface of which is a (110) crystal plane, wherein the silver halide is solely silver bromide.
Claim 9
Dependent Claim
27 words
A silver halide photographic emulsion as containing silver halide grains the surface of which is a (110) crystal plane, wherein the silver halide is solely silver iodobromide.
Claim 10
Dependent Claim
27 words
A silver halide photographic emulsion as containing silver halide grains the surface of which is a (110) crystal plane, wherein the silver halide is solely silver iodobromide.
Claim 11
Dependent Claim
55 words
A process for producing a silver halide photographic emulsion containing silver halide grains, wherein the silver halide is solely silver bromide, which comprises performing growth of the silver bromide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 12
Dependent Claim
55 words
A process for producing a silver halide photographic emulsion containing silver halide grains, wherein the silver halide is solely silver bromide, which comprises performing growth of the silver bromide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 13
Dependent Claim
55 words
A process for producing a silver halide photographic emulsion containing silver halide grains, wherein the silver halide is solely silver iodobromide, which comprises performing growth of the silver iodobromide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
Claim 14
Dependent Claim
55 words
A process for producing a silver halide photographic emulsion containing silver halide grains, wherein the silver halide is solely silver iodobromide, which comprises performing growth of the silver iodobromide grains in an aqueous medium in the presence of a hydrophilic protective colloid and at least one compound accelerating the development of a (110) crystal plane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |