Patents Examined by Patrick A. Doody
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Patent number: 5126230Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide and an adjunct having a structure selected from: ##STR1## wherein n is 0 or 1; m is 1 or 2; and each R.sup.1 and R.sup.2 is independently selected from hydrogen, methyl, or ethyl, but in Structure I the two R.sup.2 's are not both ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an adjunct of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these adjuncts also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.Type: GrantFiled: September 21, 1990Date of Patent: June 30, 1992Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Kenneth L. Bell, Carla M. Bauer
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Method of developing a high contrast, positive photoresist using a developer containing alkanolamine
Patent number: 5094934Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide and an adjunct having a structure selected from: ##STR1## wherein n is 0 or 1; m is 1 or 2; and each R.sup.1 and R.sup.2 is independently selected from hydrogen, methyl, or ethyl, but in Structure I the two R.sup.2 's are not both ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an adjunct of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these adjuncts also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.Type: GrantFiled: August 7, 1990Date of Patent: March 10, 1992Assignee: Morton International, Inc.Inventors: Richard M. Lazarus, Kenneth L. Bell, Carla M. Bauer -
Patent number: 5091296Abstract: This invention describes a process of coprecipitating a photographic material such as a dye-forming coupler inside a base ionizable polymeric particle. Preparation of such a dispersion is performed by providing a first flow comprising a solution of a surfactant in water containing a polymer ionizable by base, providing a second flow comprising a water miscible solvent, base, water, and the photographic material, then mixing the said first and said second flow and immediately neutralizing the mixed flow to precipitate the photographic material inside the polymer particles forming a fine particle colloidal dispersion of the photographic material. The polymer dispersions of the invention are characterized by high photographic activity and high dye-stability in some cases.Type: GrantFiled: June 26, 1990Date of Patent: February 25, 1992Assignee: Eastman Kodak CompanyInventors: Pranab Bagchi, Steven J. Sargeant, James T. Beck, Brian Thomas
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Patent number: 5087554Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene. It is preferred that the dispersions have a pH of between about 5 and 5.5.Type: GrantFiled: June 27, 1990Date of Patent: February 11, 1992Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, James T. Beck
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Silver halide color photosensitive material having a reflective support and a specified volume ratio
Patent number: 5075204Abstract: A silver halide color photosensitive material comprising a support having a metal surface with secondary diffuse reflection and a total reflectance of 0.5 or more in the visible wavelength region of 420 to 680 nm, said support having provided thereon a photosensitive silver halide emulsion layer containing a yellow coupler, a photosensitive silver halide emulsion layer containin a magenta coupler, and a photosensitive silver halide emulsion layer containing a cyan coupler and at least one non-photosensitive hydrophilic colloid layer, wherein the volume ratio R of the hydrophilic constituents in each photosensitive silver halide emulsion layer with respect to the non-hydrophilic constituents therein is 1.30 or less, and the photosensitive silver halide emulsion layer containing a color coupler which is arranged nearest the support has an R value of 1.20 or less.Type: GrantFiled: March 13, 1990Date of Patent: December 24, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Tadashi Ogawa -
Patent number: 5070007Abstract: Phenolic thiane derivatives of the formula I or II ##STR1## in which n is 0, 1 or 2 and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, T and Z are as defined in claim 1, are effective stabilizers for color photography recording materials, in particular for the yellow layer. They act not only as light stabilizers but also as stabilizers against thermal oxidation.Type: GrantFiled: February 6, 1991Date of Patent: December 3, 1991Assignee: Ciba-Geigy AGInventors: Jean Rody, David G. Leppard
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Patent number: 5064751Abstract: A method for processing a silver halide color photographic material including the step of developing the silver halide color photographic material with a color developing solution containing at least one aromatic primary amine developing agent and at least one hydrazide represented by the following formula (I) or (II)R.sup.1 --X.sup.1 --NHNH--R.sup.2 (I)in whichX.sup.1 represents --CO--, --SO.sub.2 -- or ##STR1## R.sup.1 represents a hydroxyl group, a hydroxyamino group, carbamoyl group, a hydrazinocarbonyl group, an amino group, or a hydrazino group; and R.sup.2 represents a hydrogen atom, an alkyl group, or an aryl group; provided that the R.sup.1 or R.sup.2 groups of at least two of the hydrazide groups may be linked to form a dimer or higher polymer of the hydrazide.R.sup.3 --X.sup.2 --NHNH--R.sup.4 (II)in whichX.sup.2 represents --CO-- or --SO.sub.2 --; R.sup.3 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, or an aryloxy group; and R.sup.Type: GrantFiled: January 23, 1991Date of Patent: November 12, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Kazuto Andoh, Hideaki Naruse, Hiroshi Fujimoto, Jiro Tsukahara, Morio Yagihara, Takatoshi Ishikawa
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Patent number: 5064750Abstract: The invention discloses an improved method for processing a silver halide color photographic material wherein said material is imagewise exposed and then processed. The improvement comprises the use of a particular naphthol amido coupler together with a bleaching bath containing (diaminopropanetetraacetatoiron) (III) complex salt at a particular pH.Type: GrantFiled: August 4, 1989Date of Patent: November 12, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Hideki Naito
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Patent number: 5063134Abstract: A photosensitive composition contains a polymer having a unit represented by formula I, and a photosensitive agent: ##STR1## wherein each of R.sub.1 to R.sub.4 represents a hydrogen atom, an alkyl group, an alkoxyl group, or a substituted or non-substituted allyl group, at least one of R.sub.1 to R.sub.4 being an alkyl groups having 1 to 10 carbon atoms and containing silicon, l represents a positive integer, and each of a and b represents an integer from 1 to 3, and c represents an integer from 0 to 2, a+b+c not exceeding 4.Type: GrantFiled: January 2, 1990Date of Patent: November 5, 1991Assignee: Kabushiki Kaisha ToshibaInventors: Rumiko Horiguchi, Shuzi Hayase, Yasunobu Onishi
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Patent number: 5055373Abstract: A multicolor recording material is disclosed, which comprises a support having provided thereon a coating layer comprising two or more kinds of microcapsules each containing at least a leuco dye capable of being colored by oxidation and a photo oxidizing agent outside said microcapsules, and a reducing agent as necessary components, with two or more leuco dyes capable of forming different colors from each other being retained in different kinds of said microcapusles respectively composed of walls of high polymers having different glass transition points.Type: GrantFiled: September 29, 1989Date of Patent: October 8, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiso Saeki, Fumiaki Shinozaki, Toshiaki Endo
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Patent number: 5053322Abstract: A method for processing a silver halide color photographic material is disclosed, comprising a support having a thin film of metal or metal oxide on a substrate; said thin film having mirror surface reflection properties or secondary diffuse reflection properties and having a surfaced reflectance of at least 0.5; said photographic material having thereon, in order outwardly from the support, an adhesive layer and at least one light-sensitive silver halide emulsion layer, by the steps which comprise developing the silver halide color photographic material with a developing bath containing a color developing agent and at least one compound represented by formulae (I), (II), (III) or (IV): ##STR1## wherein M each represents hydrogen, an alkali metal or an ammonium group; and R.sub.1 represents a lower alkyl group; ##STR2## wherein R.sub.2 R.sub.3 and R.sub.4 each represents --COOM, --PO.sub.3 M.sub.Type: GrantFiled: October 27, 1989Date of Patent: October 1, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Akira Abe
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Patent number: 5053308Abstract: A light-sensitive composition in which microcapsules having a core material comprising a silver halide emulsion are dispersed in a polymerizable compound, and a light-sensitive material comprising a light-sensitive layer containing the light-sensitive composition and a reducing agent provided on a support.Type: GrantFiled: July 20, 1990Date of Patent: October 1, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Keiji Takeda
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Patent number: 5053324Abstract: A silver halide color light-sensitive material comprising, on a support, at least one blue-sensitive silver halide emulsion layer containing a yellow dye-forming color coupler, at least one green-sensitive silver halide emulsion layer containing a magenta dye-forming color coupler and at least one red-sensitive silver halide emulsion layer containing a cyan dye-forming color coupler, in which the weight-averaged wavelength .lambda.G of spectral sensitivity distribution of the green-sensitive layer is in the range of from 520 nm to 580 nm, the weight averaged wavelength .lambda..sub.-R of spectral sensitivity distribution of the interlayer effect received by the red-sensitive layer in the range of from 500 nm to 600 nm is in the range of from 500 nm to 560 nm and the difference, .lambda..sub.G -.lambda..sub.-R is 5 nm or more, the material being characterized in that spectral sensitivity distribution S.sub.-R (.lambda.Type: GrantFiled: October 29, 1990Date of Patent: October 1, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Noboru Sasaki
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Patent number: 5043253Abstract: In a method for processing at least 2 kinds of silver halide color photographic light-sensitive materials comprising the steps of development, desilvering, water washing and/or stabilization, the method comprises processing, in a common desilvering bath, one silver halide color photographic light sensitive material having, applied to a substrate, a silver halide emulsion layer which contains, on average, not less than 3 mole % of silver iodide and another silver halide color photographic light sensitive material having, applied to a substrate, a silver halide emulsion layer which is substantially free of silver iodide, the desilvering bath containing a processing solution having bleaching ability which contains at least one stilbene type fluorescent brightener and a processing solution having fixing ability which contains iodide ions ranging from 1.times.10.sup.-4 to 1.times.10.sup.-1 mole/l.Type: GrantFiled: December 9, 1988Date of Patent: August 27, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5039599Abstract: A method for processing a silver halide color photographic material is disclosed, comprising imagewise exposing the material and continuously processing the material in an automatic processor wherein the bleach-fixing bath contains(i) at least one organic acid ferric complex salt, and(ii) at least one sulfinic acid, and the open area value (X) of said bleach-fixing bath and the water washing bath during the processing is not more than 0.05 cm.sup.-1.Type: GrantFiled: September 28, 1989Date of Patent: August 13, 1991Assignee: Fuji Photo Film Co., LtdInventor: Shinji Ueda
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Patent number: 5039589Abstract: A light-sensitive material comprising a support and a light-sensitive layer provided thereon is disclosed. The light-sensitive layer contains silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a base precursor composed of a salt of a carboxylic acid with an organic base. The silver halide, reducing agent, polymerizable compound and base precursor are contained in microcapsules which are dispersed in the light-sensitive layer. The microcapsules are obtained by (1) dispersing the base precursor in water, (2) emulsifying the resulting dispersion in the polymerizable compound, (3) further emulsifying the resulting emulsion in an aqueous medium containing a nonionic water-soluble polymer and (4) forming the shell of the microcapsules. It is preferred that the base precursor is dispersed in water in the presence of a nonionic water-soluble polymer or an emphoteric water-soluble polymer, and the resulting dispersion is emulsified in the polymerizable compound.Type: GrantFiled: June 20, 1990Date of Patent: August 13, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Ryuichi Takahashi
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Patent number: 5039590Abstract: This invention relates to a single positive or negative working photosensitive layer on a substrate which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image after processing and lamination. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process.Type: GrantFiled: October 17, 1989Date of Patent: August 13, 1991Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Gabor I. Koletar
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Patent number: 5037726Abstract: A method for forming a direct positive image having a high Dmax and a low Dmin, which comprises image-wise exposing a photographic light-sensitive material having on a support at least one photographic emulsion layer containing unprefogged internal latent image-type silver halide grains and developing the photographic light-sensitive material after or while fogging to form direct positive image, wherein the aforesaid development is performed in the existence of at least one compound selected from the group consisting of compounds represented by formula (I), (II), (III), (IV), (V) or (VI), acid salts of compounds represented by formula (I) to (IV) provided substituents thereof contain an amino group, and acid salts of compound represented by formula (V) or (VI); ##STR1## wherein symbols are defined as in claim 1.Type: GrantFiled: December 7, 1988Date of Patent: August 6, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuro Kojima, Noriyuki Inoue
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Patent number: 5037719Abstract: An image-forming method for a light-sensitive material comprising a support and a light-sensitive layer containing silver halide, an ethylenically unsaturated polymerizable compound, a base or base precursor and a salt of a reducing agent, wherein a heat development process is performed simultaneously with or after an imagewise exposure in the presence of the base or base precursor activator to release the reducing agent from the salt and to imagewise polymerize the polymerizable compound.Type: GrantFiled: August 9, 1990Date of Patent: August 6, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Koichi Nakamura
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Patent number: RE33991Abstract: The foreign particle detecting method and apparatus are disclosed wherein a polarized laser beam emitted by a laser beam irradiating system from a direction inclined with respect to the direction perpendicular to the surface of a substrate is used by a scanning means to linearly scan the substrate surface from a direction approximately 90.degree. with respect to the laser light irradiating direction; and the laser light reflected from a foreign particle on the substrate surface is detected by a polarized light analyzer and a photoelectric conversion device from a direction set approximately equal to said scanning direction and inclined with respect to the direction perpendicular to the substrate surface.Type: GrantFiled: June 2, 1989Date of Patent: July 14, 1992Assignee: Hitachi, Ltd.Inventors: Masataka Shiba, Sachio Uto, Mitsuyoshi Koizumi