Patents by Inventor Katsumi Hayashi

Katsumi Hayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5288596
    Abstract: A black and white direct positive image forming process is disclosed. The process comprises imagewise exposing to light a silver halide light sensitive material and developing the material with a black and white developing solution. The light-sensitive material comprises a non-pre-fogged internal latent image type silver halide emulsion layer provided on a support. The material further contains a quaternary salt nucleating agent and a nucleating accelerator. In the present invention, the black and white developing solution contains an imidazole compound and a benzotriazole compound. The amount of the benzotriazole compound is preferably in the range of 0.1 to 10 wt.% of the amount of the imidazole compound. The black and white direct positive image is preferably formed on a computer output microfilm (COM).
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsumi Hayashi
  • Patent number: 5204230
    Abstract: A vacuum package of a photographic processing composition consisting of a plurality of components is obtained by placing the components in a bag as separate solid state layers in a vacuum sealed manner. A normally liquid component is converted into a solid adduct in order to form a layer. A substantially water insoluble component or trace component is coated on the surface of particles of a water soluble inorganic compound, from which another layer is formed. The packaged composition is taken out of the bag and diluted with water to prepare a processing solution.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: April 20, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsumi Hayashi
  • Patent number: 5139920
    Abstract: A reducer and a method for conducting dot etching processing using the reducer, the reducer comprising (1) an amino polycarboxylic acid ferric chelate compound having an oxidation-reduction potential of -100 mV or above, (2) a complexing agent, and (3) at least one member of the compounds represented by the following general formulae (IA) to (VIIA). ##STR1## All symbols are defined in the specification.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: August 18, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Hayashi, Morio Yagihara, Shinji Ueda, Yoshihiro Fujita, Toshihiko Maekawa, Kiyoshi Morimoto
  • Patent number: 5017463
    Abstract: A process for developing a silver halide photographic material having, on a support, at least one silver halide emulsion layer comprising a silver halide emulsion spectrally sensitized by an infrared-sensitizing dye, which is subjected to image-wise exposure, then development and fixing processing and then washing or stabilization processing, wherein the silver halide in the silver halide emulsion layer contains 90 mol % or more of silver chloride, the swelling rate for hydrophilic colloid layers containing the silver halide emulsion layer is 150% or less, and the replenishment in the washing or stabilization processing is 1,200 ml or less per square meter of the photographic material.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: May 21, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Katsumi Hayashi
  • Patent number: 4921890
    Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate. The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: May 1, 1990
    Assignee: Intera Company, Ltd.
    Inventors: Katsumi Hayashi, Gregory A. Lentz
  • Patent number: 4920035
    Abstract: An image is formed by imagewise exposing a silver halide light-sensitive material comprising at least a silver halide and a contrast enhancing agent, and producing the exposed material with a developer solution or aqueous activator solution in the presence of a substantially water-insoluble metal compound such as zinc hydroxide and a complexing compound such as guanidine picolinate.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 24, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsumi Hayashi
  • Patent number: 4833064
    Abstract: A novel process for the formation of a high contrast negative image is provided which comprises processing a silver halide photographic material with a developing solution, wherein said developing solution contains a dihydroxybenzene developing agent, a 1-phenyl-3-pyrazolidone auxiliary developing agent and/or p-aminophenol auxiliary developing agent, 0.3 mol/liter or more of sulfite, and a compound represented by formula (I) ##STR1## wherein Y and Z, which may be the same or different, each represents N or CR.sup.2 wherein R.sup.2 represents a substituted or unsubstituted alkyl or aryl group; R.sup.1 represents an alkyl, aryl or heterocyclic group which is substituted by at least one group selected from the group consisting of --SO.sub.3 M, --COOM, --OH, --NHSO.sub.2 R.sup.3, --SO.sub.2 NR.sup.3 R.sup.4 and --NR.sup.5 CONR.sup.3 R.sup.4 or a group formed by alkyl groups, aryl groups or heterocyclic groups via linkage groups; R.sup.3, R.sup.4 and R.sup.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: May 23, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Eiichi Okutsu, Morio Yagihara, Mitsunori Hirano, Katsumi Hayashi
  • Patent number: 4726968
    Abstract: A process for improving the hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble cross-linking vinyl monomer and an organic hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a vinyl polymer evenly disposed on the substrate. The hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: February 23, 1988
    Assignee: Intera Company, Ltd., a Tennessee Limited Partnership
    Inventors: Katsumi Hayashi, Gregory A. Lentz
  • Patent number: 4670173
    Abstract: Oil-soluble compositions, useful as dispersant viscosity modifiers, are formed by the reaction product of an acylating product (D) a (F) polyamine, and a (G) mono-functional acid. The compositions can be prepared in solvent such as a hydrocarbon oil or in the absence of a solvent.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: June 2, 1987
    Assignee: The Lubrizol Corporation
    Inventors: Katsumi Hayashi, T. Robert Hopkins, Curtis R. Scharf
  • Patent number: 4623684
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R.sup.*).sub.a --Ar--(OH).sub.b Iwherein R.sup.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: November 18, 1986
    Assignee: The Lubrizol Corporation
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4613342
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a -Ar-(OH).sub.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: September 23, 1986
    Assignee: The Lubrizol Corporation
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4596663
    Abstract: Hydrocarbyl substituted carboxylic acylating agents are made by reacting, optionally in the presence of chlorine or bromine, (A) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms, exclusive of the carboxyl-based groups with (B) one or more high molecular weight olefin polymers of more than 30 carbon atoms selected from the group consisting of(i) polymers of C.sub.12 -C.sub.30 mono-olefins, and(ii) chlorinated or brominated analogs of (i).This invention includes the acylated amine and/or alcohol derivatives of these hydrocarbyl-substituted carboxylic acid acylating agents, and the use of such derivatives and agents in lubricants and normally liquid fuels.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: June 24, 1986
    Assignee: The Lubrizol Corporation
    Inventor: Katsumi Hayashi
  • Patent number: 4575526
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --Ar--(OH).sub.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: March 11, 1986
    Assignee: The Lubrizol Corporation
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4568634
    Abstract: The present invention relates to a composition for processing, by the silver salt diffusion transfer technique, a photographic material which contains a developing agent and at least one each of a silver halide photographic emulsion layer and an image receiving layer containing nuclei for physical development. The composition contains about 0.03 mol/l to about 0.10 mol/l of a phosphate salt and about 0.3 mol/l to about 1.0 mol/l of a compound of the following formula (I): ##STR1## wherein R is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms; R.sup.1 is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms; R.sup.2 and R.sup.3 are each a hydrogen atom or a hydroxyl group, respectively; m and n are each 0 or 1, provided that m and n are not 0 at the same time. The processing composition allows for obtaining a high contrast image by the silver salt diffusion transfer technique.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: February 4, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsumi Hayashi
  • Patent number: 4566983
    Abstract: A composition comprising(A) the reaction product of(A)(1) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms exclusive of the carboxyl-based groups, with(A)(2) one or more olefin polymers of at least 30 carbon atoms selected from the group consisting ofhomopolymers and/or interpolymers of mono-olefins of from 12 to 30 carbon atoms, and chlorinated or brominated analogs thereof; and(B) the reaction product of(B)(1) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms exclusive of the carboxyl-based groups, with(B)(2) one or more olefin polymers of at least 30 carbon atoms selected from the group consisting ofhomopolymers and/or interpolymers of mono-1-olefins of from 2 to 8 carbon atoms and chlorinated or brominated analogs thereof.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: January 28, 1986
    Assignee: The Lubrizol Corporation
    Inventor: Katsumi Hayashi
  • Patent number: 4565550
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --AR--(OH).sub.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: January 21, 1986
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4564460
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --Ar--(OH).sub.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: January 14, 1986
    Assignee: The Lubrizol Corporation
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4559155
    Abstract: A composition comprising:(A) a first component selected from the group consisting of:(i) an oil-soluble ethylene backbone polymer having a number average molecular weight in the range of about 500 to about 50,000;(ii) a hydrocarbyl-substituted phenol of the formula(R*).sub.a --Ar--(OH).sub.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: December 17, 1985
    Assignee: The Lubrizol Corporation
    Inventors: Casper J. Dorer, Jr., Katsumi Hayashi
  • Patent number: 4555771
    Abstract: A data base management system of a data processing system handles a hierarchical structure model. Matrix type data, considered as having different hierarchical structure in accordance with the application, is effectively handled by storing in the form of one-dimensional data in a file device and making up the desired hierarchical structure when used. This is accomplished by providing first order address information and designating a scheme code which defines the desired hierarchical structure when the data is utilized by a user.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: November 26, 1985
    Assignee: Fujitsu Limited
    Inventor: Katsumi Hayashi
  • Patent number: 4509955
    Abstract: A composition comprising(A) the reaction product of(A)(1) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms exclusive of the carboxyl-based groups, with(A)(2) one or more olefin polymers of at least 30 carbon atoms selected from the group consisting of homopolymers and/or interpolymers of mono-olefins of from 12 to 30 carbon atoms, and chlorinated or brominated analogs thereof; and(B) the reaction product of(B)(1) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms exclusive of the carboxyl-based groups, with(B)(2) one or more olefin polymers of at least 30 carbon atoms selected from the group consisting of homopolymers and/or interpolymers of mono-1-olefins of from 2 to 8 carbon atoms and chlorinated or brominated analogs thereof.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: April 9, 1985
    Assignee: The Lubrizol Corporation
    Inventor: Katsumi Hayashi