Patent US4608334A successfully refreshed from Google Patents.
US4608334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1985-09-12
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Granted: 1986-08-26
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Expires: 2005-09-12
Abstract
Abstract A silver halide color light-sensitive material having improved graininess is described, comprising a support having provided thereon at least two emulsion layers that are sensitive to the same color light but have different sensitivities, wherein a light-insensitive intermediate layer comprising gelatin is provided between any two of said emulsion layers that are adjacent to each other and the higher sensitivity emulsion layer of said two layers has a smaller silver/coupler molar ratio than that of the lower sensitivity emulsion layer of said two emulsion layers.
Inventors
- 👤 Sadanobu Shuto
- 👤 Munehisa Fujita
- 👤 Kazunori Hasebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:41
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3022; G03C2007/3024; G03C7/3029; G03C2007/3034; G03C2200/00; G03C2200/19; G03C2200/35; G03C5/00; G03C5/26; G03C5/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
87 words
A silver halide color light-sensitive material comprising a support having provided thereon at least two emulsion layers, each comprising at least one coupler, that are sensitive to the same color light but have different sensitivities, wherein a light-insensitive intermediate layer comprising gelatin is provided between any two of said emulsion layers that are adjacent to each other, and the higher sensitivity emulsion layer of said two emulsion layers has a smaller silver/coupler molar ratio than that of the lower sensitivity emulsion layer of said two emulsion layers.
Claim 2
Dependent Claim
87 words
A silver halide color light-sensitive material comprising a support having provided thereon at least two emulsion layers, each comprising at least one coupler, that are sensitive to the same color light but have different sensitivities, wherein a light-insensitive intermediate layer comprising gelatin is provided between any two of said emulsion layers that are adjacent to each other, and the higher sensitivity emulsion layer of said two emulsion layers has a smaller silver/coupler molar ratio than that of the lower sensitivity emulsion layer of said two emulsion layers.
Claim 3
Dependent Claim
23 words
A silver halide color light-sensitive material as in claim 1, wherein the light-insensitive intermediate layer has a thickness of at least 0.1 μm.
Claim 4
Dependent Claim
24 words
A silver halide color light-sensitive material as in claim 2, wherein the light-insensitive intermediate layer has a thickness of from 0.1 to 3 μm.
Claim 5
Dependent Claim
24 words
A silver halide color light-sensitive material as in claim 3, wherein the light-insensitive intermediate layer has a thickness of from 0.3 to 1.5 μm.
Claim 6
Dependent Claim
37 words
A silver halide color light-sensitive material as in claim 1, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio greater than that of the higher sensitivity emulsion layer by a factor of 1.2 or more.
Claim 7
Dependent Claim
37 words
A silver halide color light-sensitive material as in claim 5, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio greater than that of the higher sensitivity emulsion layer by a factor of 1.4 or more.
Claim 8
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 1, wherein the higher sensitivity emulsion layer has a silver/coupler molar ratio of from 2/1 to 20/1.
Claim 9
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 7, wherein the higher sensitivity emulsion layer has a silver/coupler molar ratio of from 4/1 to 15/1.
Claim 10
Dependent Claim
25 words
A silver halide color light-sensitive material as in claim 1, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of 4/1 or more.
Claim 11
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 9, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of from 8/1 to 100/1.
Claim 12
Dependent Claim
37 words
A silver halide color light-sensitive material as in claim 3, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio greater than that of the higher sensitivity emulsion layer by a factor of 1.2 or more.
Claim 13
Dependent Claim
37 words
A silver halide color light-sensitive material as in claim 3, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio greater than that of the higher sensitivity emulsion layer by a factor of 1.4 or more.
Claim 14
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 11, wherein the higher sensitivity emulsion layer has a silver/coupler molar ratio of from 2/1 to 20/1.
Claim 15
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 13, wherein the higher sensitivity emulsion layer has a silver/coupler molar ratio of from 4/1 to 15/1.
Claim 16
Dependent Claim
25 words
A silver halide color light-sensitive material as in claim 11, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of 4/1 or more.
Claim 17
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 15, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of from 8/1 to 100/1.
Claim 18
Dependent Claim
25 words
A silver halide color light-sensitive material as in claim 13, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of 4/1 or more.
Claim 19
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 13, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of from 8/1 to 100/1.
Claim 20
Dependent Claim
26 words
A silver halide color light-sensitive material as in claim 14, wherein the lower sensitivity emulsion layer has a silver/coupler molar ratio of from 8/1 to 100/1.
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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |