US3915710A - Light-sensitive silver halide photographic material - Google Patents
Light-sensitive silver halide photographic material Download PDFInfo
- Publication number
- US3915710A US3915710A US483835A US48383574A US3915710A US 3915710 A US3915710 A US 3915710A US 483835 A US483835 A US 483835A US 48383574 A US48383574 A US 48383574A US 3915710 A US3915710 A US 3915710A
- Authority
- US
- United States
- Prior art keywords
- silver halide
- nitron
- fog
- light
- photographic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- -1 silver halide Chemical class 0.000 title claims abstract description 78
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 73
- 239000004332 silver Substances 0.000 title claims abstract description 73
- 239000000463 material Substances 0.000 title claims abstract description 35
- CWGBFIRHYJNILV-UHFFFAOYSA-N (1,4-diphenyl-1,2,4-triazol-4-ium-3-yl)-phenylazanide Chemical compound C=1C=CC=CC=1[N-]C1=NN(C=2C=CC=CC=2)C=[N+]1C1=CC=CC=C1 CWGBFIRHYJNILV-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000839 emulsion Substances 0.000 claims abstract description 40
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 4
- 150000004820 halides Chemical class 0.000 claims 1
- 239000010410 layer Substances 0.000 description 22
- 229940126062 Compound A Drugs 0.000 description 16
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 16
- 238000005755 formation reaction Methods 0.000 description 14
- 239000000523 sample Substances 0.000 description 14
- 239000013068 control sample Substances 0.000 description 12
- 238000011161 development Methods 0.000 description 11
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 8
- 108010010803 Gelatin Proteins 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920000159 gelatin Polymers 0.000 description 6
- 239000008273 gelatin Substances 0.000 description 6
- 235000019322 gelatine Nutrition 0.000 description 6
- 235000011852 gelatine desserts Nutrition 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000080 wetting agent Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 230000005070 ripening Effects 0.000 description 3
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 150000005207 1,3-dihydroxybenzenes Chemical class 0.000 description 2
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 2
- 229910021612 Silver iodide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 229940045105 silver iodide Drugs 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YVGZCLMIVQGEPB-UHFFFAOYSA-N 1,5-dihydroxypentane-1,5-disulfonic acid Chemical compound OS(=O)(=O)C(O)CCCC(O)S(O)(=O)=O YVGZCLMIVQGEPB-UHFFFAOYSA-N 0.000 description 1
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- SJOOOZPMQAWAOP-UHFFFAOYSA-N [Ag].BrCl Chemical compound [Ag].BrCl SJOOOZPMQAWAOP-UHFFFAOYSA-N 0.000 description 1
- XCFIVNQHHFZRNR-UHFFFAOYSA-N [Ag].Cl[IH]Br Chemical compound [Ag].Cl[IH]Br XCFIVNQHHFZRNR-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- NDGRWYRVNANFNB-UHFFFAOYSA-N pyrazolidin-3-one Chemical compound O=C1CCNN1 NDGRWYRVNANFNB-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
Definitions
- a light-sensitive silver halide photographic material tends to form, at the time of development, socalled chemical fog due to deposition of blackened silver even at portions which have not been exposed to light prior to development.
- the formation of fog is a fatal drawback of photographic material, since it greatly deteriorates the quality of the resulting photographic image.
- softeners e.g., water-soluble high molecular compounds such as polyacrylamide or polyvinyl alcohols
- wetting agents e.g., aqueous dispersions of glycerin, hexylene glycol, polyethylene glycol, diethylene glycol polymer or vinyl polymer
- said softeners or wetting agents it is possible to prevent to a certain extent the formation of fog derived from thin layercoating and quick drying of silver halide emulsions high in content of silver.
- An object of the present invention is to provide a stabilized light-sensitive silver halide photographic material free from formation of fog.
- Another object of the invention is to provide a fogfree light-sensitive silver halide photographic material which is high in speed and can withstand severe processing conditions including such steps that a silver halide emulsion high in content of silver is coated in thin layer on a film base and is further subjected to quick drying.
- a further object of the invention is to provide a stabilized light-sensitive silver halide photographic material which is prepared under such severe conditions as mentioned above but does not suffer from formation of fog even when stored under high temperature and humidity conditions or subjected to high temperature quick development.
- the nitron compound A used in the present invention is an inorganic or organic salt of, for example, the nitron compound of the structural formula (I) or which is disclosed in Journal of the Chemical Society, No. 1, pages 824-825 (1938).
- Concrete examples of the nitron compound A include hydrochloride, hydrobromide, nitrate, perchlorate, thiocyanate and acetate of nitron. Processes for preparing these nitron compounds A are described in Beilsteins Handbuch der Organischen Chemie, Vol. 26, page 349.
- the nitron compound A according to the present invention is preferably incorporated into the silver halide emulsion layer of a light-sensitive silver halide photographic material, but may be incorporated into a sub layer, protective layer, inter layer or the like layer adjacent to the silver halide emulsion layer.
- the nitron compound A may be added to the silver halide emulsion at any stage before coating, but is preferably added at a stage from chemical ripening to coating.
- the nitron compound A may be added in the form of a solution in one or more of water and water-miscible solvents such as, for example, lower alcohols, esters and ketones.
- the amount of the nitron compound A to be added varies depending on the kind of the silver halide emulsion or of the nitron compound A, but is ordinarily in the range of 1 mg. to 1,000 mg., preferably mg. to 100 mg, per mole of the silver halide.
- Silver halide emulsions applicable to the lightsensitive silver halide photographic materials of the present invention are black-white photographic emulsions, X-ray photographic emulsions, printing or copying photographic emulsions, internal or external color photographic emulsions, and diffusion transfer type black-white or color photographic emulsions, which may contain various silver halides such as silver bromide, silver iodobromide, silver chlorobromide and silver chloroiodobromide.
- silver halide emulsions may have been sensitized with chemical sensitizers such as noble metal sensitizers, sulfur sensitizers or reduction sensitizers, or with color sensitizers, and may .have been incorporated with conventional photographic additives such as hardeners, stabilizers and coating aids.
- chemical sensitizers such as noble metal sensitizers, sulfur sensitizers or reduction sensitizers, or with color sensitizers
- conventional photographic additives such as hardeners, stabilizers and coating aids.
- the thus constructed light-sensitive silver halide photographic materials of the present invention show stabilized photographic properties free from fog, even when prepared by use of silver halide emulsions high in speed and high in content of silver which have been coated in thin layers and subjected to quick drying. Further, even when the thus obtained photographic materials are stored under high temperature and humidity conditions or subjected to high temperature quick development, the stabilized photographic properties free from fog can be maintained.
- EXAMPLE 1 A high speed silver iodobromide emulsion containing 1.5 mole% of silver iodide was subjected to second ripening according to gold sensitization and sulfur sensitization. Thereafter, the emulsion was incorporated with 4.0 g. per mole of the silver halide of 4-hydroxy-6- methyl-1,3,3a-7-tetrazaindene as a stabilizer, and with appropriate amounts of a coating aid and a hardener. The thus treated silver halide emulsion was equally divided into 7 portions.
- Example No. l One of the 7 portions was coated in multi-layers on a polyethylene terephthalate film base with simultaneous application of a protective layer-forming 2.5% aqueous gelatin solution, and the resulting photosensitive film was quickly dried in 10 minutes in an atmosphere of 30C. and RH 40% to prepare a control sample (Sample No. l). Separately, the remaining 6 portions were individually treated in the same manner as in the case of the control sample, except that nitron or an inorganic acid salt of nitron was added, to prepare samples (Sample Nos. 2, 3, 4, 5 and 6).
- control sample and the samples were individually exposed to white light according to .118 by use of Sensitometer Model KS-l (manufactured by Konishiroku Photo Industry Co., Ltd.), and then subjected to high temperature quick development at 40C. for 30 seconds by means of a continuous roller type automatic developing machine capable of conducting the development, fixing, water-washing and drying of photographic materials successively, using a developer of the following composition:
- EXAMPLE 2 An X-ray silver iodobromide emulsion containing 2 mole% of silver iodide was subjected to second ripening and sensitized to the maximum speed by addition of gold and sulfur sensitizers. Thereafter, the emulsion was incorporated with 4.0 g. per mole of the silver halide of 4-hydroxy-6-methyl-1,3,3a-7-tetrazaindene as a stabilizer, and with appropriate amounts of a coating aid and a hardener. The thus treated silver halide emulsion was equally divided into 1 1 portions.
- Example No. 8 One of the l 1 portions was coated in multi-layers on a polyethylene terephthalate film base together with simultaneous application of a protective layer-forming 2.5% aqueous gelatin solution, and the resulting photosensitive film was quickly dried in the same manner as in Example 1 to prepare a control sample (Sample No. 8). Separately, the remaining portions were individually treated in the same manner as in the case of the control sample, except that a nitron compound A was added in such proportion as shown in Table 2, to prepare 10 samples (Sample Nos. 9, 10, 11, 12, 13, 14,15, 16,17
- control samples and the samples were individually subjected to storage test and then subjected to the same development, fixing, water-washing and sensi- -tometry as in Example 1. Photographic properties of the samples were as set forth in Table 3.
- EXAMPLE 4 The same treated silver halide emulsion as in Example l was equally divided into 2 portions. One of the 2 portions was coated in multi-layers on a polyethylene terephthalate film base with simultaneous application of a protective layer-forming 2% aqueous gelatin solution, and the resulting photosensitive film was quickly dried in an atmosphere of 30C. and RH 37%. Separately, the other portion was treated in the same man- 'ner as in the case of the control sample, except that the protective layer-forming gelatin solution was incorporated with 5 mg. per g. of the gelatin of nitron hydrobromide, to prepare a sample.
- a stabilized, light-sensitive photographic material free of formation of fog comprising a fog-free silver halide emulsion and an inorganic or organic acid salt of nitron in the silver halide emulsion layer and/or a layer adjacent thereto, the amount of nitron being about 10 mg. to less than mg. per mole of the silver halide.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48072194A JPS5228691B2 (enrdf_load_stackoverflow) | 1973-06-28 | 1973-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3915710A true US3915710A (en) | 1975-10-28 |
Family
ID=13482151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US483835A Expired - Lifetime US3915710A (en) | 1973-06-28 | 1974-06-27 | Light-sensitive silver halide photographic material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3915710A (enrdf_load_stackoverflow) |
| JP (1) | JPS5228691B2 (enrdf_load_stackoverflow) |
| BR (1) | BR7405317D0 (enrdf_load_stackoverflow) |
| DE (1) | DE2431042A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1464278A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555480A (en) * | 1983-10-04 | 1985-11-26 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material containing a polyoxyethylene surfactant and a nitron compound |
| US4615970A (en) * | 1983-12-07 | 1986-10-07 | Fuji Photo Film Co., Ltd. | Silver halide photographic material |
| US4624913A (en) * | 1984-02-09 | 1986-11-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive materials |
| USH1020H (en) | 1989-09-25 | 1992-02-04 | Konica Corporation | Developing solution for light-sensitive silver halide photographic material and method of forming photographic image making use of it |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679424A (en) * | 1969-11-05 | 1972-07-25 | Eastman Kodak Co | Fogged,direct-positive silver halide emulsion containing nitron |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1499808A (fr) * | 1966-11-17 | 1967-10-27 | Eastman Kodak Co | Nouveaux produits photographiques sensibilisés |
| UST867009I4 (en) * | 1969-04-28 | 1969-10-21 | Defensive publicationt |
-
1973
- 1973-06-28 JP JP48072194A patent/JPS5228691B2/ja not_active Expired
-
1974
- 1974-06-26 GB GB2844974A patent/GB1464278A/en not_active Expired
- 1974-06-27 BR BR5317/74A patent/BR7405317D0/pt unknown
- 1974-06-27 DE DE2431042A patent/DE2431042A1/de not_active Withdrawn
- 1974-06-27 US US483835A patent/US3915710A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679424A (en) * | 1969-11-05 | 1972-07-25 | Eastman Kodak Co | Fogged,direct-positive silver halide emulsion containing nitron |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555480A (en) * | 1983-10-04 | 1985-11-26 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material containing a polyoxyethylene surfactant and a nitron compound |
| US4615970A (en) * | 1983-12-07 | 1986-10-07 | Fuji Photo Film Co., Ltd. | Silver halide photographic material |
| US4624913A (en) * | 1984-02-09 | 1986-11-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive materials |
| USH1020H (en) | 1989-09-25 | 1992-02-04 | Konica Corporation | Developing solution for light-sensitive silver halide photographic material and method of forming photographic image making use of it |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2431042A1 (de) | 1975-02-06 |
| GB1464278A (en) | 1977-02-09 |
| JPS5228691B2 (enrdf_load_stackoverflow) | 1977-07-28 |
| BR7405317D0 (pt) | 1975-01-21 |
| JPS5022626A (enrdf_load_stackoverflow) | 1975-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: KONICA CORPORATION, JAPAN Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:KONISAIROKU PHOTO INDUSTRY CO., LTD.;REEL/FRAME:005159/0302 Effective date: 19871021 |