Filters Ultraviolet Radiation Patents (Class 430/512)
  • Patent number: 5290671
    Abstract: A silver halide color photographic reflection print element comprises a paper support impregnated or coated with a substance that lowers its oxygen transmission rate and its oxygen leak rate, at least one polyolefin-containing layer containing a total of at least 70 g/m.sup.2 or a polyolefin coated on the paper support, and at least one color-forming silver halide emulsion layer, said emulsion layer or layers overlying a polyolefin-containing layer. In one embodiment, the paper support is impregnated with a substance that lowers its oxygen gas transmission rate to less than 1 cc/m.sup.2 /day and its oxygen leak rate to less than a 25 cc/m.sup.2 /day. The support has low permeability to oxygen and to water vapor. The silver halide color photographic element produces a dye image with improved resistance to fading by light, particularly under conditions of prolonged exposure to low-intensity light.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Brian Thomas, David J. Lacz, William A. Mruk, Todd R. Skochdopole
  • Patent number: 5290952
    Abstract: The novel compounds of formula ##STR1## wherein n and R are as defined in claim 1, are very suitable for use as UV absorbers in layers of photographic materials.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: March 1, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Kurt Burdeska
  • Patent number: 5288599
    Abstract: A silver halide color photographic material and an image forming process using the same are disclosed. Said silver halide color photographic material comprises a reflecting support and provided thereon three light-sensitive silver halide emulsion layers each having a different light sensitivity to a different wavelength region, including a light sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a light sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and a light sensitive silver halide emulsion layer containing a cyan dye-forming coupler. The silver halide color photographic material satisfies the following conditions.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Kazunori Hasebe, Kentaro Osazaki
  • Patent number: 5286616
    Abstract: A silver halide color photographic material comprising a reflective support having provided therein a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer and plural light-insensitive layers, wherein the blue-sensitive silver halide emulsion layer contains a monodisperse silver halide emulsion and a yellow coupler represented by formula (I) defined below, and at least one light-insensitive layer which is positioned farther from the reflective support than the blue-sensitive silver halide emulsion layer is a hydrophilic colloid layer containing at least one hydrophobic compound represented by formula (II) defined below, and a relative refractive index of an organic phase containing the hydrophobic compound with the exception of a volatile organic solvent and an amphipathic solute to a hydrophilic polymer thin film which forms the light-insensitive layer is in a range from 0.9875 to 1.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: February 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Sakai, Fuyuhiko Mori
  • Patent number: 5284737
    Abstract: A radiation-sensitive composition comprising an admixture in a solvent of: at least one alkali-soluble binder resin, at least one photoactive compound and an effective absorbance increasing amount of BLANKOPHOR FBW actinic dye; the amount of said binder resin being about 60 to 95% by weight, the amount of said photoactive component being about 5% to about 40% by weight, based on the total solids content of said radiation-sensitive composition.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: February 8, 1994
    Assignee: OCG Microelectronic Materials, Inc.
    Inventors: Tripunithura V. Jayaraman, David J. Brzozowy
  • Patent number: 5283162
    Abstract: There are described photographic elements containing novel release compounds which release a blocked photographically useful group, such as a blocked development inhibitor. The blocking group is removed during processing as a result of reaction with sulfite ion contained in one of the processing baths.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Daniel L. Kapp, Wojciech Slusarek, David T. Southby
  • Patent number: 5281513
    Abstract: A silver halide photographic material is disclosed, comprising a support having on one side thereof (1) at least one light-sensitive silver halide emulsion layer and (2) at least one light-insensitive hydrophilic colloid layer containing a dye dispersed in the form of fine solid particles in which the light-sensitive silver halide emulsion layer is located between the support and the light-insensitive layer; and having on the other side thereof at least one light-insensitive backing layer, wherein the backing layer has a absorbance at 320 to 400 nm of 0.50 to 0.90.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: January 25, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Nobuaki Inoue
  • Patent number: 5273866
    Abstract: A silver halide color photographic material comprising: a support; at least a blue-sensitive emulsion layer, a green-sensitive emulsion layer, and a red-sensitive emulsion layer on the support, and one or more hydrophilic colloidal layers thereon containing a dispersion of microcrystals of at least one compound represented by general formulae (I), (II), (III), (IV), (V), and (VI); and at least one light-sensitive silver halide emulsion layer having a silver density (d) of 0.4 g/cm.sup.3 or more, wherein d is N/V; where N represents the total number of grams of silver in said one or more light-sensitive silver halide emulsion layers and V represents the cm.sup.3 of said light-sensitive silver halide emulsion layer.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: December 28, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Munehisa Fujita, Katsuro Nagaoka, Shinsuke Bando
  • Patent number: 5260179
    Abstract: Imine dyes useful in photographic materials have the formula ##STR1## wherein D is selected from ##STR2## and wherein E.sup.1, E.sup.2, E.sup.3, and E.sup.4 each individually represents strongly electron-withdrawing groups; R.sup.1 and R.sup.6 each individually represents an alkyl group of 1 to about 8 carbon atoms, or an aralkyl or cycloalkyl group of 5 to about 10 carbon atoms, or an aryl group of 6 to about 14 carbon atoms; R.sup.2, R.sup.3, and R.sup.11 each individually represents an alkyl group of 1 to about 8 carbon atoms, or an alkenyl group of 2 to about 8 carbon atoms, or an aryl, aralkyl, or cycloalkyl group of 5 to about 14 carbon atoms; or R.sup.2 and R.sup.3 individually represent the non-metallic atoms necessary to form a 5- or 6-membered fused ring with the phenyl ring to which the nitrogen is attached, or together represent the non-metallic atoms required to form a 5- or 6-membered ring with each other; R.sup.4, R.sup.7, R.sup.8, R.sup.9, and R.sup.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: November 9, 1993
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Margaret J. Helber, Hugh Williamson
  • Patent number: 5258259
    Abstract: A method of forming an image comprising the steps of (a) imagewise exposing a silver halide photographic material to light substantially having no wavelengths of less than 370 nm, the silver halide photographic material comprising: (i) a support, (ii) at least one light-sensitive silver halide emulsion layer formed on the support, (iii) at least one other hydrophilic colloid layer, and (iv) a redox compound that releases a development inhibitor when oxidized in at least one of the at least one light-sensitive layer or the at least one hydrophilic colloid layer; and (b) processing the exposed silver halide material from step (a) to produce a .tau. value of at least 10.0. The redox compound is a compound represented by formula (I): ##STR1## wherein A.sub.1 and A.sub.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Hisashi Okamura
  • Patent number: 5258274
    Abstract: A thermal-dye-bleach construction comprising a thermal nucleophile-generating agent in association with a styryl dye having a nucleus of general formula (I): ##STR1## representing the nucleus of a styryl dye in which R=methyl or ethyl groupY=alkoxy of 1 to 20 carbon atomsm=1 or 2,n=1, 2, or 3, andx.sup..crclbar. =an anionThe aromatic fused benzene portion of the indolenine ring may be further substituted with commonly acceptable dye substituents such as alkyl and substituted alkyl (of 1 to 10 carbon atoms) groups, alkoxy groups (preferably of 1 to 10 carbon atoms), fused aromatic rings (as to make the benzene ring a fused naphthalene ring), halogen (including fluoro), cyano, nitro, carboxamido, amido, etc. One or two substituents chosen variously from said group may also be present on the phenyl ring to which the alkoxy group is attached.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: November 2, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Randall H. Helland, George V. D. Tiers, Dian E. Stevenson
  • Patent number: 5250398
    Abstract: A photographic silver halide material and process comprises at least one image dye-forming coupler and at least one coupler (A) represented by the formula SOL-COUP-LINK-PUG wherein SOL is a water solubilizing amide group, COUP is a naphtholic coupler moiety that, upon reaction with oxidized developer is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic material during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing; and wherein LINK is a carbamate linking group comprising a photographic ballast group on the nitrogen atom of the carbamate group. Such a photographic silver halide material enables formation of improved images.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen
  • Patent number: 5238799
    Abstract: Disclosed is a silver halide photographic material having a hydrophilic colloid layer which contains a dispersion of fine solid grains of at least one dye of formula (I): ##STR1## where R.sub.1 and R.sub.2 each represents an alkyl group, an aryl group, a cyano group or a group of COOR.sub.3, COR.sub.3, CONR.sub.4 R.sub.5, NR.sub.4 R.sub.5, NR.sub.4 COR.sub.3, NR.sub.4 CONR.sub.4 R.sub.5, OR.sub.3, SR.sub.3, SOR.sub.3 or SO.sub.2 R.sub.3 ; R.sub.3 being an alkyl group or an aryl group, and R.sub.4 and R.sub.5 each being a hydrogen atom, an alkyl group or an aryl group, and R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 being optionally bonded to each other to form a 5-membered or 6-membered ring; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; and n represents 0 or 1; provided that R.sub.1, R.sub.2, L.sub.1, L.sub.2 and L.sub.3 must not have an ionizable proton-having group or a salt thereof.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: August 24, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Usami, Shigeru Ohno, Yoko Idogaki
  • Patent number: 5236807
    Abstract: A method for forming an image is disclosed, comprising imagewise exposing a negatively working silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer with light having a wavelength of from 460 to 600 nm and containing substantially no light having a wavelength of 360 nm or less, said emulsion layer containing at least one sensitizing dye having an absorption maximum (.lambda..sub.max) at a wavelength of form 450 nm to 580 nm, and said emulsion layer or other hydrophilic colloidal layer containing at least one hydrazine derivative. The method provides an image having excellent image quality either in enlargement or reduction work without causing reduction in sensitivity or inducing black pepper.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: August 17, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Tetsuo Yoshida, Shuzo Suga, Hiroyuki Goto
  • Patent number: 5234800
    Abstract: A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2-position and a ballasted coupling-off group in the 4-position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: August 10, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-Hsuan Chen, Hans G. Ling
  • Patent number: 5225312
    Abstract: A positive photoresist of the type containing an alkali-soluble novolac resin and a quinone diazide sensitizer contains a dye of the general formula: ##STR1## wherein R' is lower alkyl, R" is H, alkyl or CO.sub.2 -alkyl, alkyl-CO.sub.2 -alkyl or alkyl-CO.sub.2 -(C.sub.1 -C.sub.3 alkyl-O).sub.n -alkyl (n=1-3) and wherein said dye is compatible with the novolac resin/quinone diazide formulation to at least 0.1 phr. The dye reduces reflective notching. Preferably the photoresist also contain a nitro naphthol dye to reduce the effects of I-Line radiation.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: July 6, 1993
    Assignee: Morton International, Inc.
    Inventors: Sunit S. Dixit, Richard M. Lazarus, Thomas P. Carter, Joseph E. Oberlander, Andreas Goehring, Randall W. Kautz, Grieg Beltramo
  • Patent number: 5219701
    Abstract: Structures of high resolution in the near UV range and of high sharpness of edge and steepness of edge can be obtained by means of positive photoresists containing, in an organic solvent, in each case essentially at least(a) an alkali-soluble resin(b) a 1,2-naphthoquinone-diazide-5-sulfonyl ester of a trihydroxybenzene isomer(c) an aromatic hydroxy compoundand also, if appropriate, further customary additives, and in which the result of component (b) is to give an absorption coefficient of at least 0.5 .mu.m.sup.-1 for the photobleachable absorption, and component (c) is present in a concentration of 15-30% by weight, relative to the total solids content.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: June 15, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Reinhard Schulz, Horst Munzel
  • Patent number: 5215876
    Abstract: A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is copolymerized with the support and is present in an amount sufficient to reduce the average percent transmission of ultraviolet light over the range of wavelength of from about 350 nm to about 395 nm to less than about 25 percent, and whereby the percent transmittance of said element is at least about 55 percent at a wavelength of about 410 nm for an element thickness of about 0.007 inches.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: June 1, 1993
    Assignee: Eastman Kodak Company
    Inventors: Wayne P. Pruett, Max A. Weaver, Elizabeth K. Priebe, Larry K. Maier, Robert E. Dickerson
  • Patent number: 5215858
    Abstract: A photosensitive resin composition comprising (A) an alkaline aqueous solution-soluble novolak resin, (B) a photosensitizer obtained by reacting a polyhydroxy compound with 1,2-naphthoquinone-(2)-diazido-5(or 4)-sulfonyl chloride, and (C) an ultraviolet absorber such as 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, has a strong absorption against a light of a wavelength of 365 nm and is suitable for producing semiconductor elements, etc.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: June 1, 1993
    Assignees: Hitachi Chemical Company, Ltd., Hitachi, Ltd.
    Inventors: Shigeru Koibuchi, Asao Isobe, Michiaki Hashimoto
  • Patent number: 5213954
    Abstract: UV-sensitive negative acting silver halide photographic elements are used in contacting processes, and especially dry etch correction processes and can be safely handled under white light. These elements comprise a support base, a negative acting hydrophilic colloidal silver halide emulsion layer comprising photographic silver halide grains, and one or more hydrophilic colloidal layers, wherein said silver halide emulsion support base has on its surface most distant from the layer an antihalation layer comprising a water-removable UV-absorbing compound having significant absorption in the range of from 350 to 400 nm.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: May 25, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Wayne W. Weber, II, Donald W. Heseltine
  • Patent number: 5206125
    Abstract: A silver halide color photographic material comprising a reflective support and coated thereon at least one each of a cyan dye-forming silver halide emulsion layer, a magenta dye-forming silver halide emulsion layer and a yellow dye-forming silver halide emulsion layer, each of the emulsion layers containing substantially silver iodide-free silver chloride or silver chlorobromide and respectively having spectral sensitivity peaks in different wavelength regions, at least one of the emulsion layers containing silver halide grains having an average grain size of 0.35 .mu.m to 0.65 .mu.m and a silver halide content of 0.19 g Ag/m.sup.2 or less, the total silver amount in all the silver halide emulsion layers being 0.78 g/m.sup.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: April 27, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadashi Ogawa
  • Patent number: 5204213
    Abstract: A silver halide photographic material comprising at least one silver halide emulsion layer on a support, characterized in that there is contained a compound represented by the general formula ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, aliphatic group, aromatic group or heterocyclic group, with the proviso that R.sup.1 and R.sup.2 may be connected to each other to form a ring; L represents a divalent linking group; V represents a carbonyl group, ##STR2## group, sulfonyl group, sulfoxy group, ##STR3## group (in which R.sub.0 represents an alkoxy group or aryloxy group), iminomethylene group or thiocarbonyl group; Time represents a divalent linking group; m represents an integer 0 or 1; n represents an integer 0 or 1; PUG represents a photographically useful group; and X represents an atomic group required to form a 5- or 6-membered ring with ##STR4## wherein R.sup.1, R.sup.
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: April 20, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Okada, Morio Yagihara
  • Patent number: 5204232
    Abstract: Disclosed is a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that at least one layer of the above silver halide emulsion layers contains a compound represented by the following formula (I): ##STR1## wherein n represents 0 or 1; A represents a compound residue which cleaves a bonding to Time in the case of n=1 or a compound residue which cleaves one of bondings to FL in the case of n=0; Time represents a timing group which cleaves a bonding to FL after cleavage from A; and FL represents a compound residue which emits fluorescence by cleavage of a bonding to Time in the case of n=1 and a compound residue which emits fluorescence by cleavage of one of bondings to A in the case of n=0.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: April 20, 1993
    Assignee: Konica Corporation
    Inventors: Hirokazu Sato, Shigeo Tanaka, Satoru Ikesu
  • Patent number: 5200307
    Abstract: A silver halide color photographic material containing a support having thereon photographic constitutional layers, which comprises(a) a magenta coupler represented by formula (I) that is contained with a high-boiling organic solvent at a prescribed weight ratio in a magenta coupler containing layer, and(b) a ultraviolet absorbing agent represented by formula (II) that is contained with a hydrophobic polymer in a non-photosensitive layer located at a position farther than a cyan coupler containing emulsion layer for the base: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, Z.sub.a, Z.sub.b, and Z.sub.c each represent a methine, substituted methine, .dbd.N--, or --NH--, Y represents a hydrogen atom or a group capable of being released upon a coupling reaction with the oxidized product of a developing agent, and the compound may form a dimer or higher polymer through R.sub.1, Y, or Z.sub.a, Z.sub.b, or Z.sub.c, that is a substituted methine, ##STR2## wherein R.sub.2, R.sub.3, and R.sub.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: April 6, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Osamu Takahashi
  • Patent number: 5198323
    Abstract: A resist composition comprising an alkali-soluble resin, a 1,2-quinone diazide compound and a compound of the general formula (I): ##STR1## wherein Z is an oxygen or sulfur atom or a group of the formula: >N--R.sub.4 in which R.sub.4 is a hydrogen atom or an alkyl group; R.sub.1, R.sub.2 and R.sub.3 are the same or different and independently a hydrogen atom, a substituted or unsubstituted alkyl group, a halogen atom, a hydroxyl group, a cyano group or a group of the formula: --OCOR" in which R" is a substituted or unsubstituted alkyl group; and X and Y are independently a cyano group or a group of the formula: ##STR2## --COOR or --CONHR' in R is an alkyl group and R' is a hydrogen atom or an aryl group, which is suitable for the formation of very fine patterns on a substrate having a high reflectance.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: March 30, 1993
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Teijiro Kitao, Masaru Matsuoka, Ryotaro Hanawa, Yasunori Uetani, Naoki Takeyama, Takeshi Hioki, Hiroshi Takagaki
  • Patent number: 5169747
    Abstract: Improved radiation-sensitive elements comprise a support; a radiation-sensitive layer; and an auxiliary layer comprising an absorbing amount of an anionic dye, and a synthetic amphoteric polymer comprising: acrylic acid and N,N-dialkylaminoethyl methacrylate; wherein alkyl=methyl or ethyl, the molar ratio of (a):(b).ltoreq.1:1; said polymer has an isoelectric point of 7.0-11.2; and said polymer is present in said auxiliary layer in an amount sufficient to mordant said anionic dye.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: December 8, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert P. Foss, Thomas D. Weaver
  • Patent number: 5169748
    Abstract: A high resolution radiography system is presented utilizing a an intensifying screen incorporating a UV emitting phosphor. The photographic element exhibits enhanced sensitivity to the emission of the phosphor and further comprises at least one compound selected from the group comprising: ##STR1## wherein R.sub.1 =substituted or unsubstituted aromatic ring; R.sub.2 =H, substituted or unsubstituted alkyl or substituted or unsubstituted aryl; R.sub.3 =an alkyl group, an aryl group, a COOR group wherein R is hydrogen, alkyl, aryl or an alkali metal cation, HNR4+ wherein R.sub.4 is alkyl, substituted alkyl or alkyaryl.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: December 8, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bernard A. Apple, Dietrich M. Fabricius, Joseph T. Guy
  • Patent number: 5158865
    Abstract: Novel photographic filter dyes are immobile as incorporated in a photographic element, but during processing, are uniformly converted to a form which is removable from the element. 2 The filter dye is represented by the structure:DYE--LS--BALwhere:BAL is a ballast group;DYE is a filter dye moiety;LS is a splittable linking group attached to a position in DYE that is not in conjugation with the dye chromophore.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: October 27, 1992
    Assignee: Eastman Kodak Company
    Inventors: John W. Harder, Peter R. Seoane, Michael P. Youngblood
  • Patent number: 5158863
    Abstract: The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: October 27, 1992
    Assignee: Eastman Kodak Company
    Inventors: Pranab Bagchi, James T. Beck, Lia A. Crede
  • Patent number: 5155004
    Abstract: A chitosan or chitin compound having a photographically useful residue. There is also disclosed a method for processing a silver halide photographic material which comprises processing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer in the presence of said chitosan or chitin compound represented by the following general formula (I) ##STR1## wherein the substituents are defined in the instant specification.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: October 13, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuro Kojima
  • Patent number: 5134061
    Abstract: Photographically useful organic compounds containing secondary-branched alkyl radicals with at least 15 C atoms corresponding to formula I have a low melting point, good solubility in oil formers and a low tendency towards crystallization which makes them particularly suitable for photographic applications. ##STR1## In formula I: PNOV is the residue of a photographically useful organic compound, for example a coupler or oil former;L is a chemical bond or a link between PNOV and X;X represents --O--, --S--, --SO--, --SO.sub.2 --, --NH--, --NR-- (R.dbd.alkyl or acyl), --CO-- or alkylidene;R.sup.1 and R.sup.2 are unbranched alkyl radicals containing at least 6 C atoms, with the proviso that R.sup.1 and R.sup.2 together contain at least 14 C atoms and, where X represents --CO-- or --CH.sub.2, at least 17 C atoms.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: July 28, 1992
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventor: Erich Wolff
  • Patent number: 5130224
    Abstract: A positive-working photoresist composition is disclosed comprising an alkali-soluble resin and a 1,2-naphthoquinonediazido group-containing compound, and further contains at least one light absorber selected from the group consisting of the azo compounds represented by the following formulae (I), (II), (III), (IV), (V) and (VI) in a proportion of from about 0.1 to about 10% by weight based on the total solid content of the photoresist composition, and is useful for forming a fine pattern of excellent quality even on a substrate with unevenness or high reflectivity: ##STR1## wherein R.sub.1 represents a hydrogen atom or a lower alkyl group; and X represents a sulfur atom or an oxygen atom; ##STR2## wherein R.sub.2 represents a hydroxyl group or a di(lower alkyl)amino group; R.sub.3 and R.sub.4 each represents a hydrogen atom or a carboxyl group, provided that at least one of R.sub.3 and R.sub.4 represents a carboxyl group; and R.sub.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: July 14, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasumasa Kawabe, Tadayoshi Kokubo
  • Patent number: 5122432
    Abstract: A photosensitive material includes a support having microcapsules and a color correction dye on its surface. The microcapsules include first, second and third sets of microcapsules, each set containing an internal phase. The first set of microcapsules is sensitive to red light and is associated with a cyan image-forming agent, the second set of microcapsules is sensitive to green light and is associated with a magenta image-forming agent, and the third set of microcapsules is sensitive to blue light and is associated with a yellow image-forming agent. The cyan, magenta and yellow image forming agents are respectively soluble in the internal phases of the first, second and third sets of microcapsules whereas the color correction dye is insoluble in the internal phase. The first, second and third sets of microcapsules are present in one or more layers containing a binder on the surface of the support. The color correction dye absorbs at least one of red, green, and blue light.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: June 16, 1992
    Assignee: The Mead Corporation
    Inventors: William A. Hammann, IV, Peter Gottchalk, James A. Dowler
  • Patent number: 5112729
    Abstract: A silver halide color photographic photosensitive material which has at least one silver halide emulsion layer on a support, wherein at least one type of cyan coupler which is represented by general formula (A) indicated below is included in at least one layer, a high boiling point organic solvent is present in the layer which contains the coupler in a weight ratio with respect to the coupler in the layer of not more than 0.3, and an ultraviolet absorber is included in the layer at a rate of at least 0.05 in terms of the ratio by weight with respect to the cyan coupler: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, T, and l' are as defined in the specification.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: May 12, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Mihayashi
  • Patent number: 5112728
    Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a photographic silver halide emulsion layer containing a magenta coupler, a photographic silver halide emulsion layer containing a yellow coupler, a photographic silver halide emulsion layer containing a cyan coupler and an non-light-sensitive layer containing a binder and a UV absorbent, wherein said silver halide photographic light-sensitive material has not more than 7.6 g/m.sup.2 of gelatin, said UV absorbent is liquid at an ordinary temperature, and said magenta coupler is a compound represented by Formula I; ##STR1## wherein Z represents a non-metallic group necessary to form a nitrogen-containing heterocyclic ring, X represents a hydrogen atom or a group capable of being split upon reaction with an oxidation product of a color developing agent, and R represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: May 12, 1992
    Assignee: Konica Corporation
    Inventors: Masaki Tanji, Toyoki Nishijima, Takahiro Ogawa, Shun Takada, Kazuhiro Murai
  • Patent number: 5110717
    Abstract: An object of the invention is to overcome disadvantages of prior practices. A further object of the invention is to provide a process for providing particles that result in improved UV absorption in photographic products.An additional object is to provide lower cost polymer particle dispersions.The invention is generally accomplished by mechanically grinding a crystalline material to a desired particle size in a liquid that is not a solvent for the material, heating said crystalline particles dispersed in said liquid to above their melting temperature, and cooling the melted particles in said liquid to form amorphous particles. In preferred forms of the invention, the material is a photographically useful material, such as ultraviolet light absorber or coupler.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: May 5, 1992
    Assignee: Eastman Kodak Company
    Inventors: David A. Czekai, John F. Bishop
  • Patent number: 5110706
    Abstract: A radiation-sensitive resin composition comprises (a) an alkali-soluble resin, (b) a 1,2-quinone diazide compound, and (c) an aromatic compound having a specified molecular structure, as essential constituents. The composition is extremely useful for forming a positive type photoresist on a substrate having a high reflectance.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: May 5, 1992
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Yoshiji Yumoto, Tsutomu Shimokawa, Takao Miura
  • Patent number: 5106989
    Abstract: An alkyl-substituted 2,2'-(1,4-naphthalenediyl)dibenzoxazole represented by the structural formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl groups having 9-20 carbon atoms, m and n are independently 0 or positive integers and m+n=1-4, and a photographic support comprising the alkyl-substituted 2,2'-(1,4-naphthalenediyl)dibenzoxazole as a fluorescent agent. The photographic support comprising the same has bright whiteness and does not cause color change or bleeding out.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: April 21, 1992
    Assignees: Mitsubishi Paper Mills Limited, Mitsubishi Kasei Corporation
    Inventors: Massashi Kubbota, Touru Noda, Isao Kawakami
  • Patent number: 5093222
    Abstract: A negative silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein said silver halide emulsion layer or another hydrophilic colloid layer provided on the support contains (i) a hydrazine derivative, (ii) at least one cationic dye selected from the group consisting of cyanine dyes, hemicyanine dyes and rhodacyanine dyes, and (iii) a compound represented by formula (I) and having substantially no absorption maximum at the visible region; ##STR1## wherein Z.sup.11, Z.sup.12, R.sup.11, R.sup.12, X and n are defined in the specification.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: March 3, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Katoh
  • Patent number: 5091295
    Abstract: 'A positive-positive silver halide color photographic material comprising at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one blue-sensitive silver halide emulsion layer, at least one hydrophilic colloid layer, and at least one colloidal silver layer on a support wherein said silver halide emulsion layer, hydrophilic colloid layer, or colloidal silver layer contains at least one dye of formula (I): ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each represents an alkyl group, an aryl gorup or a heterocyclic group; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; n.sub.1 represents 1 or 2; and any of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 has a sulfo group and the total of the groups is at least two or more. A method of forming a color image using the same is also disclosed.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: February 25, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeru Kuwashima, Mario Aoki
  • Patent number: 5085970
    Abstract: A method for forming an image is disclosed which comprises providing a photosensitive material comprising at least one light-sensitive layer and having a gamma value of not less than 10 and a capability of being handled under bright light, subjecting said light-sensitive layer image-wise exposure to light having substantially exclusive of wavelengths of 370 nm or shorter through originals, for example, a line original and a halftone original arranged in a superposed condition, followed by contrast development processing, whereby excellent quality of images, for example, letter images, can be obtained.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: February 4, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kimitaka Kameoka, Ken-ichi Kuwabara, Toshiro Takahashi, Shigenori Moriuchi, Morio Yagihara, Yoshio Inagaki, Keiichi Adachi
  • Patent number: 5084375
    Abstract: A color photographic light-sensitive material comprising a support having provided thereon a silver halide emulsion layer containing at least one each of cyan color image forming couplers represented by the following general formulae (I) and (II): ##STR1## and at least one compound represented by the formulae (III) or (IV): ##STR2## wherein all the symbols are defined in the specification.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: January 28, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Umemoto, Kozo Aoki
  • Patent number: 5075198
    Abstract: A negative type silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer or another hydrophilic colloid layer provided on the support contains (1) a compound represented by formula (I) having substantially no absorption maximum in the visible region of the spectrum and (2) a hydrazine compound represented by formula (II): ##STR1## wherein Z.sup.11 and Z.sup.12 each represents a non-metallic atomic group completing a benzoxazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthoxazole nucleus, a naphthothiazole nucleus, a naphthoselenazole nucleus, a thiazole nucleus, a thiazoline nucleus, an oxazole nucleus, a selenazole nucleus, a selenazoline nucleus, a pyridine nucleus, a benzimidazole nucleus, or a quinoline nucleus; R.sup.11 and R.sup.12 each represents an unsubstituted or substituted alkyl group, at least one of said R.sup.11 and R.sup.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: December 24, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Katoh
  • Patent number: 5070007
    Abstract: 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: Grant
    Filed: February 6, 1991
    Date of Patent: December 3, 1991
    Assignee: Ciba-Geigy AG
    Inventors: Jean Rody, David G. Leppard
  • Patent number: 5057404
    Abstract: A silver halide color photographic material is disclosed having blue-sensitive, green-sensitive, and red-sensitive silver halide emulsion layers on a support, wherein said red-sensitive silver halide emulsion layer contains a dispersion of fine oleophilic grains formed by dispersing by emulsification a mixture comprising a water-insoluble and organic solvent-soluble homopolymer or copolymer and at least one coupler represented by formula (I) or formula (II), and the silver halide emulsion layer or non-light-sensitive layer of the material contains a dye represented by formula (III);wherein formula (I) is represented by ##STR1## wherein R.sub.11 represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R.sub.12 represents an acylamino group or an alkyl group; R.sub.13 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, or R.sub.12 and R.sub.13 are bonded together to form a nitrogen-containing heterocyclic ring; Z.sub.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: October 15, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kokichi Waki, Tsumoru Hirano
  • Patent number: 5053324
    Abstract: 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: Grant
    Filed: October 29, 1990
    Date of Patent: October 1, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Noboru Sasaki
  • Patent number: 5047314
    Abstract: A silver halide color photographic material comprising a support having thereon a cyan coupler-containing layer, a magenta coupler-containing layer and a yellow coupler-containing layer, wherein the cyan coupler-containing layer contains a dispersion of oleophilic fine particles which is obtained by emulsifying or dispersing a solution containing (a) at least one cyan coupler represented by the general formula (I) and/or (II) described below, (b) at least one compound represented by the general formula (III) described below and (c) at least one water-insoluble and organic solvent-soluble homopolymer or copolymer, ##STR1## wherein R.sub.1, R.sub.2, and R.sub.4 each represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group, R.sub.3, R.sub.5 and R.sub.6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group or an acylamino group, and R.sub.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: September 10, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Sakai, Tsumoru Hirano
  • Patent number: 5032498
    Abstract: The novel UV-absorbers are compounds of the formula ##STR1## in which R.sup.1 is, for example, hydrogen, n is one of the numbers 1 or 2 and R.sup.2 is an appropriate monovalent or divalent radical, for example --OH or --O-CH.sub.2 CH.sub.2 --O--. The UV-absorbers are used in particular for stabilising and improving lacquers and photographic material.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: July 16, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean Rody, Mario Slongo
  • Patent number: 5030543
    Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a support (the polymerizable compound is contained in microcapsules which are dispersed in the light-sensitive layer), characterized in that a colored layer is provided on the surface of the support, or the support is colored.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: July 9, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiyuki Watanabe
  • Patent number: 5028519
    Abstract: A silver halide color photosensitive material is disclosed. The photosensitive material comprises a support and a photographic layer. According to the present invention, the photographic layer contains a heterocyclic compound. The heterocyclic compound is, for example, represented by the following formula [I]: ##STR1## in which n is 1, 2 or 3; and each of Ra and Rb independently is an acyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a phosphoryl group, a sulfamoyl group or a carbamoyl group. The other heterocyclic compounds represented by the formulas [II], [III], [IV], [V], and [VI] are also disclosed.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: July 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto