Patents Examined by Travis Brown
  • Patent number: 4618572
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer and containing, in a silver halide emulsion layer having an average iodide content of about 8 mol % or more, a compound capable of releasing a fogging agent or a precursor thereof, or of releasing a development accelerator or a precursor thereof upon development in proportion to the amount of developed silver.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: October 21, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Hidetoshi Kobayashi, Shunji Takada
  • Patent number: 4603096
    Abstract: A hologram recording material comprises one of bismuth silicon oxide and bismuth germanium oxide, and Fe added to these material. The density of Fe is 10 p.p.m.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: July 29, 1986
    Assignee: Agency of Industrial Science & Technology
    Inventors: Koji Tada, Yoshiki Kuhara, Masami Tatsumi
  • Patent number: 4595650
    Abstract: A silver halide color photographic light-sensitive material is described, comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having a photographic layer containing at least one kind of magenta coupler of 5-pyrazolone type having an arylthio group at the coupling position thereof, the arylthio group having an alkoxy group or an aryloxy group at the ortho position to the sulfur atom thereof and the alkoxy group and the aryloxy group being substituted with a cyano group, a halogen atom, a sulfonyl group, a sulfinyl group, a phosphonyl group, or an ##STR1## group, wherein A represents a chemical bond, an alkylene group, an arylene group, an oxygen atom, a sulfur atom, or an imino group; and B represents a hydroxy group, an alkoxy group, an aryloxy group, a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyclic amino group, or a hydrazino group.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: June 17, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Masakazu Morigaki, Takeshi Hirose
  • Patent number: 4588677
    Abstract: A method for processing a silver halide color photosensitive material which comprises processing a silver halide color photosensitive material containing at least one 4-mercapto-5-pyrazolone type magenta coupler represented by formula (I) ##STR1## wherein W represents an aryl group; X represents an alkyl group, an aryl group or a heterocyclic ring group; and Y represents an acylamino group, a ureido group, or an anilino group; with a color developer containing at least one compound selected from a compound represented by formula (II) ##STR2## wherein R represents a lower alkyl group, and M.sub.1 and M.sub.2, which can be the same or different, each represents a hydrogen atom, and an alkali metal atom, or an ammonium group; a compound represented by formula (III) ##STR3## wherein M.sub.3, M.sub.4, M.sub.5, M.sub.6 and M.sub.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: May 13, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Junya Nakajima
  • Patent number: 4588679
    Abstract: A color photographic silver halide light-sensitive material is described. The material contains a 1H-pyrazolo[3,2-C]-s-triazole type coupler and, as a color image stabilizer, a compound represented by the formula (I): ##STR1## (wherein all the symbols are as defined in the appended claims). Addition of the color image stabilizer of the formula (I) improves the light fastness of magenta color images formed from the 1H-pyrazolo[3,2-C]-s-triazole type coupler. Thus the light-sensitive material of the invention exhibits high photographic performance.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: May 13, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nobuo Furutachi
  • Patent number: 4587195
    Abstract: A method of processing a silver halide photographic material using a color developer containing at least two kinds of triazylstilbene brightening agents having maximum fluorescent wavelengths at least 4.mu. apart, said material containing a sensitizing dye and an antiirradiation dye.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: May 6, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Ishikawa, Shigeharu Koboshi, Masayuki Kurematsu
  • Patent number: 4587208
    Abstract: A color photographic light-sensitive material comprising a reflective support having thereon a plurality of silver halide emulsion layers of which the silver halide layer located farthest from the support contains not less than 15 mole percent of silver chloride and two non-light-sensitive layers each containing an ultraviolet absorbing agent.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: May 6, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Takashi Kadowaki, Kaoru Onodera
  • Patent number: 4587207
    Abstract: A color image-forming process is described, comprising developing an exposed silver halide light-sensitive material with an aromatic primary amine color developing agent in the presence of an .alpha.-acyl-.alpha.-unsubstituted or substituted phenoxyacetanilide type yellow coupler having a sulfamoyl group in an m-position of the acetanilido group with respect to the amino group.
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: May 6, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Momotoshi Tsuda, Jun Arakawa
  • Patent number: 4585732
    Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, the photographic light-sensitive material containing a color image forming coupler comprising a nitrogen containing heterocyclic 5-membered ring-condensed-5-membered ring in which the coupling active position is substituted with the nitrogen atom of a carboxylic acid amido group containing at least one fluorine atom.The magenta color image forming coupler has good color forming property and provides a magenta color image having excellent spectral absorption property and good fastness to light.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: April 29, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Kawagishi, Nobuo Furutachi
  • Patent number: 4585728
    Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer is described, the color photographic light-sensitive material having at least one layer containing (1) at least one 2-equivalent magenta coupler represented by formula (I): ##STR1## wherein W represents a phenyl group substituted with at least one halogen atom, alkyl group, alkoxy group, alkoxycarbonyl group or cyano group; Y represents an acylamino group or an anilino group; and Z represents a group capable of being released upon coupling, and (2) at least one amine compound having at least two groups other than a hydrogen atom represented by formula (II): ##STR2##
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: April 29, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Takeshi Hirose
  • Patent number: 4585731
    Abstract: A silver halide color photographic light-sensitive material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, wherein at least one silver halide emulsion layer contains a coupler which is subjected to a coupling reaction with an oxidation product of a color developing agent to produce a diffusible coupling product which exerts a fogging effect in a developing solution; the silver halide color photographic light-sensitive material provides increased contrast and sensitivity, development is accelerated, and stability during storage is improved.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: April 29, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Kobayashi, Keiji Mihayashi
  • Patent number: 4584266
    Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having a photographic layer containing at least one 2-equivalent 5-pyrazolone type magenta coupler represented by the general formula (I) described below and an amount of a calcium atom contained in the color photographic light-sensitive material being up to 10 mg/m.sup.2. ##STR1## wherein W represents an aryl group; X represents an aliphatic group, an aryl group or a heterocyclic group; and Y represents an acylamino group, a ureido group or an anilino group.The silver halide color photographic light-sensitive material containing the 2-equivalent 5-pyrazolone magenta coupler and the restricted amount of the calcium atom exhibits photographic properties which are not influenced by variations in the pH of the color developing bath and can provide color images fast to light and heat.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: April 22, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Hirose, Kotaro Nakamura, Nobuo Furutachi
  • Patent number: 4584264
    Abstract: A silver halide color photographic light-sensitive material containing a compound of the general formula (I) as a color stain inhibitor: ##STR1## R.sup.1, R.sup.2, R.sup.3, l, m and n are as defined herein. This color stain inhibitor has various advantages and is capable of efficiently removing oxidized color developing agents, can be used in light-sensitive materials with reduced layer thickness, and is free from changes in performance even after a long-term storage.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: April 22, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Ohki, Yoshinobu Yoshida
  • Patent number: 4584265
    Abstract: s-Triazine compounds which contain in their molecule at least one sterically hindered phenol group and at least one polyalkylpiperidine group are effective optical stabilizers for photographic dyes and precursors thereof.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: April 22, 1986
    Assignee: Ciba-Geigy AG
    Inventors: David G. Leppard, Jean Rody
  • Patent number: 4581326
    Abstract: A silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing at least one magenta coupler of formula (I) and at least one non-color forming phenolic compound: ##STR1## wherein R.sub.1 is an alkyl or aryl group; R.sub.2 is a monovalent group; R.sub.3 is an alkylene group; Y is a halogen atom, a hydroxy or alkyl group; Z is a group that can be eliminated upon coupling reaction with the oxidized product of a color developing agent; X is a divalent bonding group or an alkylene group having 1 to 5 carbon atoms; m is an integer of 0 to 4; and n is an integer of 0 to 5.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: April 8, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Katsunori Katoh, Satoshi Kawakatsu, Kosaku Masuda, Kaoru Miyagi, Noritaka Nakayama, Toshihiko Kimura
  • Patent number: 4581324
    Abstract: Colored, reflection-viewed images having improved stability to light, heat and moisture and improved storage stability while retaining the original color character thereof are produced using color photographic recording materials containing, on a light-reflecting layer support, a red-sensitive, a green-sensitive and a blue-sensitive silver halide emulsion layer, each with spectrally associated color coupler, the yellow coupler being a 2-equivalent yellow coupler derived from pivaloyl acetanilide, the magenta coupler a 3-anilinopyrazolone coupler and the cyan coupler a coupler corresponding to the following general formula (I): ##STR1## wherein R.sup.1 represents H or halogen;R.sup.2 represents alkyl having at least 2 carbon atoms;R.sup.3 represents H or alkyl having up to 5 carbon atoms;R.sup.4 represents acyl; andX.sup.1 represents H or a group releasable in the process of color coupling.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: April 8, 1986
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Erich Wolff, Gunter Renner, Friedrich-Wilhelm Kunitz
  • Patent number: 4579813
    Abstract: A silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer is described, wherein the photographic material contains a cyan dye-forming coupler represented by formula (I) ##STR1## wherein R represents an unsubstituted or substituted alkyl, aryl, or heterocylic ring group; B represents --O-- or --NR.sub.1 --, wherein R.sub.1 represents a hydrogen atom or an unsubstituted or substituted alkyl or aryl group; Z represents an unsubstituted or substituted aryl group or an alkyl or aralkyl group substituted by a carboxy group or a hydroxy group; A represents a substituted aryl group, or a substituted or unsubstituted heterocyclic ring group; and m represents 0 or 1, provided that when m is 0 the substituent is not an alkoxy group, a halogen atom or a cyano group.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: April 1, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Aoki, Takayoshi Kamio, Toshiyuki Watanabe
  • Patent number: 4578346
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The material is comprised of a support having two layers thereon. One layer is comprised of a silver halide emulsion layer containing a non-diffusible coupler which couples with an oxidation product of a developing agent during development processing to form a dye of such mobility that controlled image smearing occurs. The other layer is comprised of a silver halide emulsion layer containing a polymer coupler latex which is adjacent to the emulsion layer containing the dye diffusion type coupler. By utilizing the silver halide color photographic light-sensitive material as disclosed within the application it is possible to obtain improved results with respect to the graininess and sharpness of the images produced with the material without having bad effects on other photographic properties of the material.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: March 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Watanabe, Morio Yagihara, Keiichi Adachi
  • Patent number: 4578347
    Abstract: The addition of water-soluble triaryl compounds selected from the group consisting of phosphines, amines, arsines, bismuthines and stibylidynes provides sensitizing effects and, when added to spectrally sensitized emulsions, provides a supersensitizing effect. The activity of these compounds is additive with other supersensitizers.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: March 25, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James B. Philip, Jr.
  • Patent number: 4578345
    Abstract: A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development processing then to bleaching and fixing or to bleach-fixing, which method comprises using a ferric ion complex salt or a persulfate as a bleaching agent in the bleaching or bleach-fixing and incorporating at least one compound selected from compounds represented by general formula (I) below and a salt thereof in the bleaching bath or the bleach-fixing bath or in a prebath thereof: ##STR1## wherein X represents --COOM, --OH, --SO.sub.3 M, --CONH.sub.2, --SO.sub.2 NH.sub.2, --NH.sub.2, --SH, --CN, --CO.sub.2 R.sup.6, --SO.sub.2 R.sup.6, --OR.sup.6, --NR.sup.6 R.sup.7, --SR.sup.6, --SO.sub.3 R.sup.6, --NHCOR.sup.6, --NHSO.sub.2 R.sup.6, --OCOR.sup.6 or --OSO.sub.2 R.sup.6 ; Y represents ##STR2## or a hydrogen atom; m and n each represents an integer from 1 to 10; R.sup.1, R.sub.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: March 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeru Ohno, Shinzo Kishimoto, Akihiko Ikegawa, Morio Yagihara