Patents Examined by Thomas R. Neville
  • Patent number: 5536630
    Abstract: The invention provides a method of nucleating silver halide particles wherein said nucleation is carried out in the presence of acid processed ossein (APO) gelatin or chain-extended acid processed ossein (CE-APO) gelatin and the composition formed therefrom.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: July 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Pranab Bagchi, Melvin D. Sterman, Jacob I. Cohen
  • Patent number: 5503972
    Abstract: This invention describes the use of gelatin-grafted-polymer particles as peptizers for the preparation of silver halide photographic emulsions, whereby the gelatin-grafted-polymer particles remain attached to the AgX crystals after preparation of the emulsions. In an embodiment of this invention, the core polymer particles are loaded with photographically useful agents. When the photographic agent is a dye-forming coupler, multicolor mixed-packet systems can be constructed using the packet emulsions prepared in the manner of this invention.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: April 2, 1996
    Assignee: Eastman Kodak Company
    Inventors: John D. Lewis, Mark A. Whitson, Thomas J. Dannhauser, Tienteh Chen, Pranab Bagchi
  • Patent number: 5499449
    Abstract: A method of forming a battery terminal of the type having an electrically conductive screw encased within a conductive material casting such as lead. The preferred method uses a pair of die halves axially aligned with one another. A casting of a battery terminal having upper and lower terminal portions is provided, along with an electrically conductive post or screw. The casting and screw are placed between the die halves. The die halves are compressively forced against one another. A forging cone causes the casting to be forced into the thread spaces of the screw or against the surface of the post and changes the exterior angle of the casting.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: March 19, 1996
    Assignee: Molded Metal Services, Inc.
    Inventors: Warren Carter, Brad Carter
  • Patent number: 5496690
    Abstract: A base film having dimensional stability and high transparency, which comprises (A) a plastic film having on either one or both sides thereof (B) a thin film layer comprising (1) an oxide of silicon and (2) a fluoride of alkaline earth metal, or comprising (1) an oxide of silicon, (2) a fluoride of alkaline earth metal, and (3) an oxide of magnesium, the thin film layer (B) being formed by a vacuum film forming process. A photographic light-sensitive material comprising the base film having dimensional stability and high transparency, having on either one or both sides thereof (C) a photographic layer.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: March 5, 1996
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Toshinori Machida, Atsushi Hirokawa, Fusao Ito
  • Patent number: 5496688
    Abstract: A base film for a photographic film, wherein (a) the refractive index (nz) in the thickness direction is at least 1.498, (b) the haze value is 2.0% or less, (c) the base film has one direction in which the tan.delta. value, at 80.degree. C. by tensile viscoelasticity at 0.05 Hz, is 0.09 or less, (d) the anti-curling ratio at 70.degree. C. is at least 45%, (e) the thickness is in the range of from 40 to 120 .mu.m, and (f) the base film is formed from polyethylene-2,6-naphthalendedicarboxylate as a substantial raw material. This base film has various performances such as anti-curling properties, transparency and lubricity, suitable for use in a photographic film.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: March 5, 1996
    Assignee: Teijin Limited
    Inventors: Hiroshi Okamoto, Kohtaro Katoh, Hiroshi Tomita, Kenji Suzuki, Kazuyoshi Saitoh
  • Patent number: 5489503
    Abstract: Novel UV absorbers of the bis- or tris-2'-hydroxyphenyltriazine type and their use in photographic materials, inks or recording materials for ink-jet printing, and surface coatings are described which conform to the formula ##STR1## in which the radicals R.sub.1 and R.sub.9 are as defined in claim 1.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: February 6, 1996
    Assignee: Ciba-Geigy Corp.
    Inventor: Vien V. Toan
  • Patent number: 5489509
    Abstract: A mask includes a first layer which is transparent with respect to an exposure light, and a phase shift mask pattern which is formed on the transparent layer. The pattern includes one or more phase shift regions adapted for transmitting the exposure light impinging thereon and shifting the phase of the transmitted light relative to the phase of light which passes through a portion of the mask having no phase shift layer.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: February 6, 1996
    Assignee: Fujitsu, Ltd.
    Inventors: Toshiaki Kawabata, Kenji Nakagawa, Seiichiro Yamaguchi, Masao Taguchi, Kazuhiko Sumi, Yuichiro Yanagishita
  • Patent number: 5486450
    Abstract: A silver halide color photographic light sensitive material comprising a support which is both side coated with a polyolefin resin is disclosed. A hydrophilic colloidal layer containing a white pigment and a silver halide emulsion layer are provided on the support and the silver halide emulsion layer contains at least one of the compounds represented by the following Formula I, ##STR1## wherein R.sub.1 represents an alkyl group, a cycloalkyl group or an aryl group; R.sub.2 represents a fluorine atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a dialkylamino group, an alkylthio group or an arylthio group; R.sub.3 represents a group substitutable to a benzene ring; n is an integer of 0 or 1; Z represents a hydrogen atom or a group capable of splitting off when coupling it to the oxidized product of a developing agent; and Y represents a monovalent organic group including a ballast group.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: January 23, 1996
    Assignee: Konica Corporation
    Inventors: Yasuo Tosaka, Masayuki Sasagawa
  • Patent number: 5484695
    Abstract: Surfactants useful as dispersing aids in the preparation of compositions comprising a hydrophilic colloid having hydrophobic particles dispersed therein have the structure ##STR1## wherein R is H or methyl provided that when each n=1, each R is methyl;M is a cation; and,n is an integer from 1 to 6.Such surfactants offer coating, photographic property and processing advantages when incorporated in photographic materials comprising a support bearing a plurality of hydrophilic colloid layers including at least one light-sensitive silver halide emulsion layer wherein at least one of the underlying hydrophilic colloid layers of the material contains hydrophobic particles dispersed therein with the aid of the surfactant.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: January 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Alan R. Pitt, Julian C. Caesar, Danuta Gibson, Trevor J. Wear, David J. Young, Scott A. King
  • Patent number: 5482813
    Abstract: A method for forming a radiological image using a silver halide photographic material comprising a transparent support having at least one silver halide emulsion layer on one side thereof and a backing layer on the opposite side to the silver halide emulsion layer, and a radiographic intensifying screen, wherein the radiographic intensifying screen has such characteristics that the absorbed dose is at least 25% of X-rays having an X-ray energy of 80 KVp, and the contrast transfer function (CTF) is at least 0.79 at a spatial frequency of 1 line/mm and at least 0.36 at a spatial frequency of 3 lines/mm.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: January 9, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Ito Tadashi
  • Patent number: 5482815
    Abstract: Disclosed is a silver halide photographic photosensitive material comprising a support and, provided thereon, at least one hydrophilic colloid layer including a photosensitive layer wherein the photosensitive layer comprises monodispersed silver halide grains having an average grain size of 0.2 micron or less and comprising at least 90 mol % of silver chloride, the photosensitive layer or a hydrophilic colloid layer provided on the same side of the support as the side on which the photosensitive layer is provided contains a hydrazine derivative, a hydrophilic colloid layer provided above the photosensitive layer contains a water-dispersible fine particle polymer, the photosensitive layer contains substantially no water-dispersible fine particle polymer, and amount of the water-dispersible fine particle polymer contained in the hydrophilic colloid layer is 1 g/m.sup.2 or less and is 5% by weight or more based on the weight of gelatin contained in the hydrophilic colloid layer.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: January 9, 1996
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Kunihiro Nakagawa, Shoji Akaiwa, Seiichi Sumi, Kenichi Nishi
  • Patent number: 5480886
    Abstract: Disclosed is a silver halide photographic material and forming an image using the same, containing a hydrazine derivative in the emulsion layer(s) or in other hydrophilic colloid layer(s). At least one silver halide emulsion comprises silver halide grains containing (a) from 1.times.10.sup.-8 to 1.times.10.sup.-6 mol, per mol of silver, of an iridium compound, and (b) from 1.times.10.sup.-8 to 1.times.10.sup.-6 mol, per mol of silver, of a rhodium compound or from 1.times.10.sup.-9 to 1.times.10.sup.-5 mol, per mol of silver, of a rhenium compound, ruthenium compound or osmium compound, and having a silver chloride content of 50 mol % or more, the emulsion having been color-sensitized with a sensitizing dye of the following general formulae (1), (2) or (3): ##STR1## The material may be processed with a stable developer to give a hard image having few "black peppers".
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: January 2, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuki Yamazaki, Nobuaki Inoue, Seiichi Yamamoto, Toshihide Ezoe, Minoru Sakai, Tadashi Ikeda, Masaki Okazaki, Toshiki Fujiwara
  • Patent number: 5480767
    Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a reflective support comprising polyolefin resin coated paper and provided on one side thereof with photographic component layers comprising a hydrophilic colloidal layer containing a white pigment, a non-sensitive hydrophilic colloidal layer, and a silver halide emulsion layer, wherein at least one of said photographic component layers contains an oil-soluble dye or a colored pigment, either of which is not substantially incapable of being decolorized on a photographic-processing.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: January 2, 1996
    Assignee: Konica Corporation
    Inventors: Yasuo Tosaka, Yoshiyuki Nonaka, Keiichi Hoshino
  • Patent number: 5478697
    Abstract: Silver halide photographic material is disclosed, which has provided on a support at least one silver halide emulsion layer which comprises silver halide grains containing a silver chloride of 50 mol % or more and at least one emulsion layer and other hydrophilic colloid layers contain at least one hydrazine derivative and at least one phosphonium salt compound.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: December 26, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Sakai, Kazunobu Katoh, Hisashi Okamura
  • Patent number: 5478708
    Abstract: The synthesis and the application of new dyes is described. In particular said new dyes can be incorporated in non-migratory state in hydrophilic colloid layers of photographic materials wherefrom they can be rapidly removed after being quickly decolorized in alkaline aqueous liquids used in the processing of said materials. In photographic applications dyes of the general formula (I) are provided with at least one ionizable group which permits solubilization in aqueous and/or alkaline medium.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: December 26, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Eric Kiekens, Paul Callant
  • Patent number: 5478709
    Abstract: A light-sensitive photographic silver halide material is disclosed comprising a support and on one or both sides thereof at least one silver halide emulsion layer, at least one gelatin antistress layer and, optionally, a substantially gelatin free antistatic surface layer coated thereover, characterised in that said emulsion layer(s) comprise(s) at least one synthetic clay. As a result the said material is less sensitive to roller marks in automatic processing machines.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: December 26, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventor: Hubert Vandenabeele
  • Patent number: 5478710
    Abstract: New types of polymer latices and their use in photographic materials are disclosed. They are obtained by subjecting to radical emulsion polymerisation one or more radical-polymerisable monomers, whose emulsifier-free homopolymers or copolymers possess a glass transition temperature below 65.degree. C., preferably below 30.degree. C., in the presence of a water-soluble polymer of a particular chemical formula.These new types of latices are preferably used in graphic arts contact materials, e.g. daylight materials. They can be used in relative high amounts thus improving dimensional stability without deteriorating the scratch resistance too strongly.A preferred radical-polymerisable monomer mixture comprises n.-butyl acrylate, methyl methacrylate and acrylic acid.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: December 26, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Michael Muller, Daniel M. Timmerman, Guido V. Desie, Stefaan F. Lingier, Gunter Stackmann
  • Patent number: 5478696
    Abstract: A silver halide photographic light-sensitive material is disclosed. the light-sensitive material comprises a support bearing on the same side thereof a silver halide emulsion layer and optionally a hydrophilic colloid layer, and at least one of the silver halide emulsion layer or the hydrophilic colloid layer contains a hydrazine derivative in a form of dispersion of solid particles and at least one of the silver halide emulsion layer or the hydrophilic colloid layer contains a nucleation accelerator represented by the following formula 1; ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group, an substituted or unsubstituted alkenyl group or a substituted or unsubstituted aryl group, provided that R.sub.1, R.sub.2 and R.sub.3 are not a hydrogen atom at the same time and two of R.sub.1, R.sub.2 and R.sub.3 may link to form a ring.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: December 26, 1995
    Assignee: Konica Corporation
    Inventor: Takeo Arai
  • Patent number: 5476759
    Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer is disclosed, wherein said light-sensitive material contains a DIR coupler represented by formula (I): ##STR1## wherein A represents a coupler residue; R represents an alkyl group having from 1 to 4 carbon atoms or a pyridyl group; and n represents 1 when A represents a phenol type or naphthol type coupler residue, or n represents 0 when A represents other coupler residues, and said emulsion layer contains chemically sensitized silver halide grains which individually have a distinct layer comprising silver iodobromide containing from 7 to 45 mol % of silver iodide and which individually have an overall silver iodide content of more than 4 mol %.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: December 19, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi, Naoki Saito, Masuji Motoki
  • Patent number: RE35315
    Abstract: The present invention relates to a microminiaturization technique to achieve the miniaturization and higher integration of IC chips and to the improvement of a mask used in its manufacturing process. In other words, the phase of lights transmitted through the mask is controlled within one mask pattern. Specifically, a transparent film is formed in such a manner that it covers a mask pattern along a pattern formed by magnifying or demagnifying the mask pattern, or otherwise a groove is formed in a mask substrate. A phase difference of 180.degree. is generated between the lights transmitted through the mask substrate and the transparent film or the groove, causing interference with each light to offset each other. Therefore, the pattern transferred onto a wafer has an improved resolution, being used in the invention.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: August 20, 1996
    Inventor: Yoshihiko Okamoto