US5114836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of development comprising intermittently spraying a photographic material
Assignee: Konica Minolta Inc
•
Filing: 1990-07-19
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Granted: 1992-05-19
•
Expires: 2010-07-19
Abstract
Abstract A method of developing a silver halide photographic material is disclosed. The method comprises a step of supplying a developer to a surface of an exposed silver halide photographic material, which is transferred by at least one pair of rollers, intermittently at least twice wherein an interval time of each supplying is not more than 10 seconds and the amount of developer retained in the light-sensitive material ranges from 50 to 250 ml/m 2 . The method provides a compact developing system, which is free from uneven development with good grainess of the image.
Inventors
- 👤 Kiyoshi Sato
- 👤 Masaaki Taguchi
- 👤 Yasunori Wada
- 👤 Mikio Kawasaki
- 👤 Shinichi Ohtani
- 👤 Masatosi Iwada
- 👤 Noboru Hatakeyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:50
CPC Classifications
G; G03; G03D; G03D5/00; G03D5/04; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/305; G03C5/3053; Y; Y10; Y10S; Y10S430/00; Y10S430/164
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
A method of developing a silver halide photographic material, comprising a step of supplying a developer at least twice and intermittently, with an interval time of each supplying being not more than 10 seconds, to a surface of an exposed silver halide photographic material, wherein the photographic material is transferred between at least a pair of rollers and wherein the amount of developer retained in the light-sensitive material ranges from 50 to 250 ml/m 2 .
Claim 2
Independent Claim
76 words
A method of developing a silver halide photographic material, comprising a step of supplying a developer at least twice and intermittently, with an interval time of each supplying being not more than 10 seconds, to a surface of an exposed silver halide photographic material, wherein the photographic material is transferred between at least a pair of rollers and wherein the amount of developer retained in the light-sensitive material ranges from 50 to 250 ml/m 2 .
Claim 3
Dependent Claim
21 words
A method as claimed in claim 1, wherein the developer is supplied to more than one surface of the photographic material.
Claim 4
Dependent Claim
27 words
A method as claimed in claim 1, wherein an amount of the supplied developer is 50 to 180 ml per 1 m 2 of the photographic material.
Claim 5
Dependent Claim
18 words
A method as claimed in claim 1, wherein the at least one of the rollers is kept warm.
Claim 6
Dependent Claim
20 words
A method as claimed in claim 1, wherein the viscosity of the developer is 3 to 100CP at 20° C.
Claim 7
Dependent Claim
23 words
A method as claimed in claim 1, wherein the developer comprises carboxymethylcellulose in an amount of 0.5 to 2.5 g per liter developer.
Claim 8
Dependent Claim
19 words
A method as claimed in claim 1, wherein the developer is supplied to the photographic material by the rollers.
Claim 9
Dependent Claim
19 words
A method as claimed in claim 1, wherein the developer is supplied between the rollers and the photographic material.
References Cited (Backward Citations)
DE1447043A1
Cited
US3334566A
Cited
US3826228A
Cited
US3960567A
Cited
US4562140A
Cited
US4868098A
Cited
JPS63235940A
Cited
US4954425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |