Identified Dye Image Forming Compound Other Than Colorless Color Developer Or Dye Mordant Containing Or Identified Organic Solvent For An Incorporated Ingredient Patents (Class 430/222)
  • Patent number: 7173100
    Abstract: The present invention relates to a receiving-layer-forming polyester resin for use in a thermal-transfer image-receiving sheet, comprising: not less than 70 mol % of isophthalic acid and not more than 30 mol % of terephthalic acid as acid components; and not less than 30 mol % of diols having an alicyclic structure and not more than 30 mol % of ethylene glycol as diol components, and a thermal-transfer image-receiving sheet with a receiving layer formed on at least one of surfaces of the substrate sheet, in which the receiving layer is formed by such a receiving-layer-forming polyester resin.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: February 6, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Naoyuki Mitsuyasu, Masayasu Yamazaki, Taro Suzuki, Minoru Takahashi, Hirotoshi Kizumoto
  • Patent number: 7153622
    Abstract: A construct that comprises a base material and a polyhydroxyalkanoate, wherein at least a part of the base material is coated with the polyhydroxyalkanoate, and the polyhydroxyalkanoate comprises a 3-hydroxyalkanoic acid unit other than 3-hydroxypropionic acid unit, 3-hydroxy-n-butyric acid unit, and 3-hydroxy-n-valeric acid unit. In addition, an electrostatic charge image developing toner allows to design the toner characteristics such as chargeability, flowability, stability in time and environmental stability uniform among the toners of different colors. The toner has a small particle size enough for enabling uniform dispersion and being excellent in color saturation and transparency. The toner also shows higher contribution to the environmental security. The toner includes a coloring agent of which at least a part of the surface is covered with polyhydroxyalkanoate (PHA).
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: December 26, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Honma, Tetsuya Yano, Tsuyoshi Nomoto, Shinya Kozaki
  • Patent number: 6541177
    Abstract: A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible image formed from the latent image as a result of photographic processing may be transient or permanent. Also described are diffusion transfer photographic methods.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: April 1, 2003
    Assignee: Polaroid Corporatiion
    Inventors: James A. Foley, Michael P. Filosa, Stephen J. Telfer, John L. Marshall, David P. Waller
  • Publication number: 20030054267
    Abstract: A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible image formed from the latent image as a result of photographic processing may be transient or permanent. Also described are diffusion transfer photographic methods.
    Type: Application
    Filed: April 16, 2001
    Publication date: March 20, 2003
    Inventors: James A. Foley, Michael P. Filosa, Stephen J. Telfer, John L. Marshall, David P. Waller
  • Patent number: 6528230
    Abstract: The present invention provides a dye precursor for forming color through contact with a base and which is represented by either of the following formulas (1) and (2): wherein Ar represents an aromatic ring or a heterocyclic ring, each of which may have a substituent; Cp represents a coupler residue; L1 represents a protective group which can be eliminated by a base; and L2 represents an elimination group or a protective group which is eliminated after L1 is eliminated. Further, the present invention provides an image forming material and an image forming method, wherein the image forming material has an image forming layer on a support, the image forming layer containing at least one type of each of a photopolymerization initiator, a dye precursor which can form color through contact with a base, a base or a base precursor, and a polymerizable compound.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: March 4, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masanobu Takashima, Hiroshi Sato, Hirotaka Matsumoto, Yuuichi Fukushige
  • Publication number: 20020181960
    Abstract: A cartridge that supplies fresh photographic processing solution or chemistry to a photoprocessing machine and recovers silver from spent processing solution. The cartridge is designed to integrate a solution supply system and a silver recovery system to facilitate the collection of silver from spent processing solution, form a less-regulated spent solution and reduce chemical exposures to operators of photoprocessing systems.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 5, 2002
    Inventors: Robert B. Call, Jay E. Mathewson, Donna M. Timmons, Richard R. Horn
  • Publication number: 20010038982
    Abstract: A heat-developable color light-sensitive material which contains at least, on a support, a light-sensitive silver halide emulsion, a binder, and a dye-providing compound, wherein the light-sensitive material contains at least one compound represented by formula (I) in, for example, a protective layer: formula (I) 1
    Type: Application
    Filed: March 1, 2001
    Publication date: November 8, 2001
    Inventors: Kazuki Uehara, Nobuhiro Nishita
  • Patent number: 6180324
    Abstract: A heat developable color photographic material for use in an image-forming process comprising: (a) superposing a heat developable color photographic material onto an image-receiving material that is formed on a separate support from a support of the heat developable color photographic material; and (b) heat-developing the heat developable color photographic material superposed on the image-receiving material to form or release a diffusible dye, so that the diffusible dye is transferred to the image-receiving material to thereby form an image: wherein the heat developable color photographic material contains at least a light-sensitive silver halide and yellow, magenta and cyan dye-donating compounds, which form or release diffusible yellow, magenta and cyan dyes, respectively, by heat development corresponding to silver development, wherein the yellow, magenta and cyan dyes, respectively, has a maximum absorption intensity of spectral absorption at a wavelength of from 440 nm to 460 nm, from 525 nm to 545 nm,
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 30, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazuki Uehara
  • Patent number: 6127088
    Abstract: A heat developable color light-sensitive material containing at least light-sensitive silver halide, a binder, and a dye-providing compound on a support, wherein at least one of the compounds represented by formula (1) is contained as the above dye-providing compound, and the amount of the above binder is 5 g/m.sup.2 or less: ##STR1## wherein veriables in the above formula are defined in the specification. The heat developable color light-sensitive material which provides an excellent discrimination of an image and is less susceptible to an influence by a fluctuation in a development processing condition.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: October 3, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Yamada, Naoto Matsuda, Yasuhiro Ishiwata, Osamu Uchida, Michio Ono
  • Patent number: 5843606
    Abstract: In accordance with the present invention, there is provided a phenanthrylenediamine derivative represented by the general formula (1). The derivative is excellent in the electric charge transferring capability, the compatibility with a binding resin and the stability, thereby providing a photosensitive material which is highly sensitive and excellent in the durability. ##STR1## ?wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent a halogen atom, an alkyl group, an alkoxy group or an aryl group; and a, b, c and d each represent an integer from 0 to 5!.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: December 1, 1998
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Eiichi Miyamoto, Mikio Kakui, Hideo Nakamori, Yukikatsu Imanaka, Yasuyuki Hanatani
  • Patent number: 5817452
    Abstract: A heat developable color light-sensitive material provided on a support, which is for use in an image forming process comprising using a dye fixing element provided on a support separate from the support for the light-sensitive material, superposing one on another, heat developing to form a diffusible dye in the light sensitive material, and transferring the diffusible dye to the dye fixing element to form an image, is disclosed.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: October 6, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsu Kamosaki
  • Patent number: 5780198
    Abstract: A silver halide photographic material comprising a plurality of light-sensitive silver halide emulsion layers, wherein (A) at least one of the layers contains a hydrazine nucleating agent represented by formula (II): ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrazine group, a carbamoyl group, or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, ##STR2## a thiocarbonyl group, or an iminomethylene group; and A.sub.3 and A.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group, provided that at least one of A.sub.3 and A.sub.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: July 14, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Kazunobu Katoh, Minoru Sakai
  • Patent number: 5731140
    Abstract: A pyrazolylazophenol dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals, and a color light-sensitive material containing an image forming compound comprising the dye, which releases a magenta dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 24, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayoshi Kamio, Nobuo Seto, Hironori Hiyoshi
  • Patent number: 5719011
    Abstract: Compounds of the formula I are suitable as release compounds for photographically useful groups (photographic units). On reacting with nucleophilic reagents, preferably with dinucleophiles, the photographically useful group is released. ##STR1## In formula I: PUG means a photographically useful group;A means a strong electron acceptor;V means a vinylene group or two or more successive vinylene groups, wherein the vinylene group or two successive vinylene groups may form part of an aromatic ring system;L means one or more timing groups;m means 0 (zero) 1 or 2;n means 0 (zero), 1 or 2;R.sup.1 means H or methyl;R.sup.2 means H, alkyl with 1-18 C atoms or aryl;R.sup.3, R.sup.4 mean H or an organic group,wherein R.sup.2 and R.sup.3 may also together mean the residue necessary to complete a ring.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: February 17, 1998
    Assignee: Agfa-Gevaert AG
    Inventor: Erich Wolff
  • Patent number: 5716754
    Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: February 10, 1998
    Assignee: Polaroid Corporation
    Inventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
  • Patent number: 5667933
    Abstract: There are described heat-developable photosensitive image-recording elements which have an alkali-generating system incorporated therein. In the alkali-generating system, a slightly water-soluble metal compound is reacted with a salt of 2-hydroxy-pyridine-N-oxide, or its derivatives, in the presence of a fluid such as water, to form an insoluble precipitate and the alkali required for silver image development during processing. The image-recording materials are useful as image-forming materials in thermographic and photothermographic processes.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: September 16, 1997
    Assignee: Polaroid Corporation
    Inventors: Gary E. Cargill, Edward C. Taylor, Peter Viski, Christopher E. R. Orvig
  • Patent number: 5658705
    Abstract: There are described color-providing compounds having at least two cyclic 1,3-sulfur-nitrogen moieties and one complete dye or dye intermediate. The color-providing compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a complete dye or dye intermediate in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic, photothermographic, thermographic, and other processes.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: August 19, 1997
    Assignee: Polaroid Corporation
    Inventors: Peter Viski, David P. Waller
  • Patent number: 5654123
    Abstract: Multilayer color photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a nucleophile which can react with a uniform distribution of a sulfinate blocked dye moiety contained in the element to release a solubilized unblocked dye.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: August 5, 1997
    Assignee: Eastman Kodak Company
    Inventors: Xiqiang Yang, Zbyslaw R. Owczarczyk, Daniel L. Kapp
  • Patent number: 5607812
    Abstract: A color diffusion transfer film unit containing an alkali processing element as one of elements constituting the film unit, wherein at least one of the elements contains at least one oligomer or polymer having surface activity. The film unit can contain a small amount of a photographically useful substance in a stable state. The film unit forms a clear image at a high rate of image formation.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: March 4, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideki Naito, Hiroki Sasaki
  • Patent number: 5585231
    Abstract: A heat developable color light-sensitive material containing at least light-sensitive silver halide, a binder, and a dye-providing compound on a support, wherein at least one of the compounds represented by formula (1) is contained as the above dye-providing compound, and the amount of the above binder is 5 g/m.sup.2 or less: ##STR1## wherein variables in the above formula are defined in the specification. The heat developable color light-sensitive material which provides an excellent discrimination of an image and is less susceptible to an influence by a fluctuation in a development processing condition.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: December 17, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Yamada, Naoto Matsuda, Yasuhiro Ishiwata, Osamu Uchida, Michio Ono
  • Patent number: 5569574
    Abstract: There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: October 29, 1996
    Assignee: Polaroid Corporation
    Inventors: Peter Viski, David P. Waller
  • Patent number: 5556740
    Abstract: A heat-developable photosensitive material for use in diffusion transfer process is disclosed, comprising a support having in one or more layers a hydrophilic binder, photosensitive silver halide and dye-providing compound represented by the following formula,[A-(J.sub.1).sub.a -(X).sub.b ].sub.c -J.sub.2 -Dyewhich is capable of releasing [-(J.sub.1).sub.a -(X).sub.b ].sub.c -J.sub.2 -Dye residue upon cleavage in the presence of a silver ion or a soluble silver complex.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: September 17, 1996
    Assignee: Konica Corporation
    Inventors: Takatugu Suzuki, Atsushi Tomotake, Hidenobu Ohya, Nobuyuki Takiyama
  • Patent number: 5512414
    Abstract: A photographic color diffusion transfer element is disclosed wherein said element comprises a single dimensionally stable support, wherein said support comprises an opaque and light reflecting layer, and coated thereon in reactive association and in sequence (1) a mordant layer for binding diffusible dyes, (2) a stripping layer, (3) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, and (4) a barrier layer comprising a polymer that (a) allows the passage of solutions for processing said element when said element is contacted with an external processing bath and (b) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: April 30, 1996
    Assignee: Eastman Kodak Company
    Inventor: John Texter
  • Patent number: 5472821
    Abstract: Disclosed is a diffusion transfer color photographic material at least having a light-sensitive silver halide, a binder, a non-diffusive dye donor compound capable of releasing or forming a diffusive dye in correspondence or reverse correspondence with the reaction of reducing the silver halide to silver, and a non-diffusive filter dye, on a support, in which the filter dye is in the form of an emulsified dispersion along with the dye donor compound. The color separatability of the processed material is good and the discrimination of the formed image is also good. The raw film of the material is free from lowering of the filter effect after storage.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: December 5, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiki Taguchi
  • Patent number: 5455141
    Abstract: Photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a nucleophile which can react with a uniform distribution of a blocked dye moiety contained in the element to release an unblocked dye.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: October 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Zbyslaw R. Owczarczyk, Xiqiang Yang, Daniel L. Kapp, Wojciech K. Slusarek, Louis E. Friedrich, David T. Southby
  • Patent number: 5441843
    Abstract: A light-sensitive material comprises a support and a light-sensitive layer. The light-sensitive layer contains silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a color image forming substance. The silver halide, the reducing agent, the polymerizable compound and the color image forming substance are contained in light-sensitive microcapsules which are dispersed in the light-sensitive layer. According to one embodiment of the present invention, the light-sensitive layer further contains an ethylenically unsaturated polymerizable compound outside the light-sensitive microcapsules. According to another embodiment of the invention, the light-sensitive material further has an auxiliary layer containing an ethylenically unsaturated polymerizable compound.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 15, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Hara
  • Patent number: 5436108
    Abstract: A thermographic dye transfer image-recording material is provided wherein a particular silver salt complex is employed as a source of silver ions, made available upon imagewise heating, to cleave a dye-providing material to provide a diffusible dye in an imagewise pattern corresponding to said imagewise heating. The silver salt complexes have improved solubility in the system providing for enhanced transferred image density.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: July 25, 1995
    Assignee: Polaroid Corporation
    Inventors: James R. Freedman, Marcis M. Kampe, Peter Viski, Kent M. Young
  • Patent number: 5432041
    Abstract: Photothermographic elements capable of producing a high density yellow or magenta image upon image-wise exposure and thermal development at a relatively low temperature and for a short period of time are described. The photothermographic elements of the invention comprise coated on a support base at least one light-sensitive emulsion layer comprising (a) a leuco dye reducing reducing agent, (b) a photosensitive silver halide, (c) an organic silver compound capable of being reduced by the leuco dye reducing agent, and (d) a binder; wherein the leuco dye reducing agent thereto comprises a chromogenic yellow or magenta leuco dye compound.The photothermographic elements of the invention may be used to obtain yellow and magenta images of suitable density in single color or multicolor photothermographic articles. At the same time the chromogenic leuco dye is stable enough not to be oxidized by oxygen of the air or by simple heating and to limit the fog formation after development.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: July 11, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Raffaella Biavasco, Stefano Parodi, Sharon M. Simpson, Kim M. Vogel
  • Patent number: 5418111
    Abstract: Disclosed is a color diffusion transfer photographic material improved in transfer density (Dmax) and treating temperature dependency thereof on color diffusion transfer, comprising a color diffusion transfer light-sensitive element containing at least one compound represented by the following formula (I) and an alkali treating composition: ##STR1## wherein X represents an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, an aryl group, an alkoxy group, an aryloxyl group, an acylamino group, a sulfonylamino group, a ureido group, an alkylthio group, an arylthio group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a sulfonyl group, an acyl group, a urethane group, an amino group, a sulfamoylamino groups, a cyano group, a hydroxyl group, a phosphonic acid ester group or a heterocyclic group; n represents an integer of 1 to 5; Xs may be the same or different, when n is 2, 3, 4 or 5; two Xs may be combined with each other to form a saturated ring or an unsaturated ring, when n
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: May 23, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Masaaki Tsukase
  • Patent number: 5415970
    Abstract: There are disclosed color-providing compounds comprising two or more cyclic 1,3 sulfur-nitrogen groups and two or more color-providing moieties, i.e., complete dyes or dye intermediates, capable of releasing the color-forming moieties upon cleavage in the presence of silver ions or a soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic processes.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: May 16, 1995
    Assignee: Polaroid Corporation
    Inventors: Michael J. Arnost, Efthimios Chinoporos, Donald A. McGowan, David P. Waller
  • Patent number: 5401622
    Abstract: A thermally developable color photosensitive material comprises a support, having thereon a photosensitive silver halide, a binder, an electron transfer agent, an electron donor, and a reducible dye donating compound which is capable of being reduced and releasing a diffusible dye, wherein the reducible dye donating compound and a compound represented by the following formula (1) are present together in the form of an emulsified dispersion in the binder.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: March 28, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Yamada
  • Patent number: 5389493
    Abstract: A dye-receiving resin for sublimation transfer image receiving materials, which mainly constitutes an image receiving layer of the sublimation transfer image receiving materials, said resin being a polyester resin comprising, as a main dicarboxylic acid component, an aromatic dicarboxylic acid component, and an alicyclic glycol component in glycol component, and an image receiving layer comprising said resin shows high dye-receiving sensitivity, is superior in durability and preservation stability of images transferred, and can provide high-quality sublimation transfer image receiving materials.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: February 14, 1995
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Haruo Asai, Mitsuru Kuwabara, Nobukazu Kotera, Hiroshi Fujimoto
  • Patent number: 5376500
    Abstract: A polyester resin for a dye receptive layer of a recording medium for sublimation type heat-sensitive transfer recording process, and a recording medium using thereof, which has superior resistance to light exposure and dark fade out. A polyester resin for a dye receptive layer of a recording medium for sublimation type heat-sensitive transfer recording process, wherein said polyester resin is formed by using a diol component containing a diol compound shown in Formula (1) in a range of 5-80 molar % with respect to the total diol component, and a receiving medium using thereof. ##STR1## (In Formula (1), each of R.sub.1 and R.sub.2 represents an alkylene group having a number of carbon atoms within a range of 1-12.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: December 27, 1994
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kenji Kushi, Takayuki Iseki, Tadayuki Fujiwara, Kazuhiko Jufuku, Akifumi Ueda, Hitoshi Iwasaki, Youichi Nagai
  • Patent number: 5364733
    Abstract: A photothermographic element containing a transparent substrate having one major surface thereof containing the following layers sequentially coated thereon: an image-receiving layer; an opacifying layer; a first dry silver layer; an interlayer containing thermoplastic polymer; a second dry silver layer; an interlayer containing thermoplastic polymer; and a third dry silver layer, wherein the first, second, and third dry silver layers each contain a light-insensitive, reducible silver source; light-sensitive silver halide, and as a reducing agent for the light-insensitive, reducible silver source, a material oxidizable to a colored dye whose color differs from that capable of being formed in each other dry silver layer, each of the dry silver layers being individually sensitized to light of different wavelengths.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: November 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Raymond J. Kenney, Takuzo Ishida, Richard C. Cotner
  • Patent number: 5354650
    Abstract: Photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a photographically inert compound which can react with a uniform distribution of a second compound contained in the element to form a photographically active compound.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: October 11, 1994
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Daniel L. Kapp, Wojciech Slusarek, Louis E. Friedrich, Zbyslaw R. Owczarczyk, Xiqiang Yang
  • Patent number: 5340689
    Abstract: There are disclosed dye-providing compounds comprising color coupler dyes substituted on the phenylene diamine portion with one or two cyclic 1,3 -sulfur-nitrogen groups. The dye-providing compounds are capable of releasing the coupler dye upon cleavage in the presence of silver ions or a soluble silver complex. The dye-providing compounds are useful as image-forming materials in color thermographic, photothermographic and other photographic processes.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: August 23, 1994
    Assignee: Polaroid Corporation
    Inventors: Efthimios Chinoporos, Robert H. Pauze, David P. Waller, David C. Whritenour
  • Patent number: 5328799
    Abstract: Photothermographic and thermographic diffusion transfer image-recording materials are provided wherein an auxiliary ligand for silver ions is employed to enhance transfer image density and discrimination.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: July 12, 1994
    Assignee: Polaroid Corporation
    Inventors: James R. Freedman, Stephen R. Sofen, Kent M. Young
  • Patent number: 5320929
    Abstract: There are disclosed compounds comprising at least one cyclic 1,3-sulfur-nitrogen substituted color-providing material and at least one ballast group which are linked to each other through a triazine group. The compounds are capable of releasing the color-providing material upon cleavage in the presence of silver ions or a soluble silver complex. The color-providing compounds are useful as image-forming materials in color thermographic, photothermographic and other photographic processes.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: June 14, 1994
    Assignee: Polaroid Corporation
    Inventor: Michael J. Arnost
  • Patent number: 5316887
    Abstract: There are disclosed color-providing compounds comprising two or more cyclic 1,3 sulfur-nitrogen groups and two or more color-providing moieties, i.e., complete dyes or dye intermediates, capable of releasing the color-forming moieties upon cleavage in the presence of silver ions or a soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic processes.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 31, 1994
    Assignee: Polaroid Corporation
    Inventors: Michael J. Arnost, Efthimios Chinoporos, Donald A. McGowan, David P. Waller
  • Patent number: 5300418
    Abstract: The invention relates to a melt for the coating of a layer in a photographic element and which contains water, gelatin and an anionically charged, hydrophobic group containing compound that is (a) water soluble or soluble in a solution of 5 to 20 percent of water miscible organic solvent,said melt being further characterized by containing an amount of an amphiphilic compound which is sufficient to reduce the viscosity of said melt, said compound selected from the class consisting of:Type A: Sugar (saccharidic) compounds, characterized by having one to three hydrophobic groups, each group containing from about 6 to about 22 carbon atoms, and having one or more attached hydrophilic mono- or oligosaccharidic hydrophilic chains that may or may not be terminated by a negatively charged group such as a sulfate, sulfonate or a carboxyl group; andType B: Compounds compromising a hydrophobic group having from about 6 to about 22 carbon atoms and having one or two attached hydrophilic chains comprising at least 4 oxyet
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: April 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: Gary W. Visconte, Pranab Bagchi, James A. Friday, Michael W. Orem, Alan R. Pitt
  • 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: 5279929
    Abstract: A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula:--X--Rel.sup.3 --T.sup.3 --INHwherein;X is selected from oxygen, nitrogen or sulfurX--Rel.sup.3 contains a photographic ballast and is a releasing group for releasing T.sup.3 --INH from X--Rel.sup.3 by intramolecular displacement reaction during photographic processing without substantial delay of releasing;T.sup.3 is a timing group that releases INH by intramolecular displacement reaction with timing delay during photographic processing;INH is a development inhibitor group;The photographic coupler (A) enables formation of easily removable dyes in photographic elements and processes that provide images having improved acutance, stability and interimage effects.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: January 18, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Drake M. Michno, Hans G. Ling, Teh H. Chen
  • Patent number: 5266453
    Abstract: A silver halide photographic light-sensitive material which provides an improved safelight property without adversely affecting the photographic properties of the light-sensitive material. The silver halide photographic light-sensitive material contains at least one compound represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a substitutable group; W represents a nitrogen atom or a carbon atom; Z represents --Y.sub.1 --(R.sub.3)n.sub.2 or R.sub.3 in which R.sub.3 represents a hydrogen atom or a substitutable group; n.sub.0, n.sub.1 and n.sub.2 each represents 0 or 1; h represents 1 or 2; R.sub.1 and R.sub.2 and R.sub.3 may combine with each other to form a hydrocarbon ring or a heterocyclic ring; Y.sub.1 represents --CO--, --CO(.dbd.NR.sub.4)--, --C(.dbd.S)--, --C(.dbd.N.sup.+ R.sub.5 R.sub.6)--, --SO--, --SO.sub.2 --, --C(C.dbd.CR.sub.7 R.sub.8)--,--R.sub.6 C.dbd.N--, or --R.sub.6 C.dbd.CR.sub.9 --in [(R.sub.1).sub.n1 --Y.sub.1 ] when n.sub.1 is 1 and in --Y.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: November 30, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetunori Matushita, Yoko Idogaki
  • Patent number: 5258279
    Abstract: A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. Preferred embodiments comprise xanthene sulfonamides having N-aryl substituents, e.g., hydroquinone substituents. These compounds possess redox potentials ranging between about +200 to -500 millivolts and thus are useful as dyes for producing photographic, photothermographic, thermal, and pressure-induced images, as well as being useful as redox indicators in a wide variety of biological and chemical reactions.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: November 2, 1993
    Assignee: Polaroid Corporation
    Inventors: Myron S. Simon, Marcis M. Kampe, David P. Waller
  • Patent number: 5258282
    Abstract: A dry process silver salt photosensitive member is disclosed. The photosensitive member has a heat-developable photosensitive element containing at least (1) and organic silver salt, (2) a reducing agent, and (3) at least one of a photosensitive silver halide and a photosensitive silver halide-forming component on a support. The heat-developable photosensitive element further contains a compound represented by the general formula (I) and a compound represented by the general formula (II).
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Kagami, Masato Katayama, Tetsuro Fukui, Hiromi Tanaka, Masao Suzuki
  • Patent number: 5238790
    Abstract: A silver halide photographic light-sensitive material contains a dispersion in which at least one compound represented by formula (I) below and a photographic useful reagent, which is hard to solve in water, are dispersed together. (In formula (I), R.sub.1 and R.sub.2 independently represent amino having 0 to 32 carbon atoms, alkoxy having 1 to 32 carbon atoms, or aryloxy having 6 to 32 carbon atoms, R.sub.3 and R.sub.4 independently represent a group which can be substituted on a benzene ring, and l and m independently represent an integer of 0 to 4. R.sub.3 and/or R.sub.4 may be the same or different when l and/or m is 2 to 4. In a method of processing a silver halide photographic light-sensitive material, the silver halide photographic light-sensitive material is exposed imagewise and then developed with a color developer not essentially containing benzyl alcohol.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: August 24, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Shimura, Hidetoshi Kobayashi, Hideaki Naruse
  • Patent number: 5234818
    Abstract: The present invention is concerned with the use of certain 3-aminopyrazolo-heterocyclic compounds for the colorimetric determination of hydrogen peroxide, hydrogen peroxide-forming systems, peroxidase, peroxidate-active substances and electron-rich aromatic compounds. The present invention is also concerned with corresponding processes of determination and with agents appropriate therefor. Furthermore, the present invention is concerned with new 3-aminopyrazolo-heterocyclic compounds.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: August 10, 1993
    Assignee: Boehringer Mannheim GmbH
    Inventors: Gerd Zimmermann, Joachim Siedel, Gunter Frey
  • Patent number: 5233028
    Abstract: (1) Dicyanoimidazole compound derivative represented by the formula [I] ##STR1## [R.sup.1, R.sup.2 : alkyl group, alkoxyalkyl group, hydroxyalkyl group, .beta.-cyanoethyl group, .beta.-chloroethyl group, aralkyl group, aryl group; X: hydrogen atom, lower alkoxy group, methyl group, halogen atom; Y: hydrogen atom, methyl group, methoxy group, formylamino group, alkylcarbonylamino group, alkylsulfonylamino group, alkoxycarbonylamino group; --Q--: --(CR.sub.2).sub.n --[n: integer of 1 to 12, R: hydrogen atom, alkyl group], ##STR2## --CH.dbd.CH--, --CH.sub.2 CH.dbd.CHCH.sub.2 --, --CH.sub.2 --CH.dbd.CH--]. (2) Magenta toner for color electrophotography containing at least one kind of the dicyanoimidazole compound derivative represented by the formula [I] as a coloring agent.(3) Colored resin and resin color filter containing at least one kind of the dicyanoimidazole compound derivative represented by the formula [I] in solution.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: August 3, 1993
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Masahiro Ohtsuka, Tohru Tamura
  • Patent number: 5223387
    Abstract: A color light-sensitive material comprising a support provided thereon at least one light-sensitive silver salt layer combined with an image forming compound represented by formula (I) ##STR1## wherein Dye represents a cyan dye group or a precursor thereof represented by formula (II) defined in the specification;X represents a chemical bond or a linking group;Y represents a group which releases Dye corresponding to or countercorresponding to light-sensitive silver salt having an imagewise latent image and makes a difference in diffusibility between the dye thus released and the compound represented by formula (I), provided that Dye and X are linked to each other by A or E in formula (II); andq represents an integer of 1 or 2, provided that when q is 2, the two groups (Dye--X) may be the same or different.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: June 29, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaaki Tsukase, Kozo Sato, Hiroyuki Hirai
  • 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