Patents by Inventor Katsumi Kawaguchi

Katsumi Kawaguchi 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: 11279844
    Abstract: This coating solution for a gas barrier contains an ammonium salt (A) of a polymer having a carboxyl group, a particulate multivalent metallic compound (B), and water, the content of the multivalent metallic compound (B) being about 0.5-2.0 times the chemical equivalent of the ammonium salt (A), and the mean particle diameter of the multivalent metallic compound (B) being about 4 ?m or less.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 22, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Chisato Oto, Katsumi Kawaguchi
  • Patent number: 10890190
    Abstract: A magnetic pump includes a front casing including: a shaft supporting body that supports a leading end of a supporting shaft; and a plurality of supporting legs that extends toward an inner wall of a suction port from the shaft supporting body, and that supports the shaft supporting body in the suction port. In the magnetic pump, a leading end of the shaft supporting body is positioned further toward the inlet side of the suction port than a connecting section between the inner wall of the suction port and the supporting leg.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 12, 2021
    Assignee: IWAKI CO., LTD.
    Inventors: Hiroyuki Kawai, Katsumi Kawaguchi, Toshinori Yanagihara
  • Publication number: 20200109307
    Abstract: This coating solution for a gas barrier contains an ammonium salt (A) of a polymer having a carboxyl group, a particulate multivalent metallic compound (B), and water, the content of the multivalent metallic compound (B) being about 0.5-2.0 times the chemical equivalent of the ammonium salt (A), and the mean particle diameter of the multivalent metallic compound (B) being about 4 ?m or less.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Chisato OTO, Katsumi KAWAGUCHI
  • Patent number: 10556729
    Abstract: A gas barrier packaging material precursor, includes a support; an adhesion layer on one surface of the support; and a barrier layer and a protective layer formed adjacent each other on the adhesion layer. The adhesion layer contains a silicon compound composite. The protective layer is formed of a coating liquid containing a polyvalent metal compound, a polyester resin, and a dispersant, with the polyvalent metal compound being about 40 to about 90 mass % relative to 100 mass %. When the barrier layer is separated from the gas barrier packaging material precursor to measure an infrared absorption spectrum of the barrier layer by a transmission method, a ratio (?/?) of a maximum peak height (?) of absorbance in a range of about 1490 to about 1659 cm?1 to a maximum peak height (?) of absorbance in a range of about 1660 to about 1750 cm?1 is less than about 1.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 11, 2020
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Noboru Omori, Haruka Omori, Katsumi Kawaguchi
  • Patent number: 10150885
    Abstract: A gas-barrier packaging material including: a support; an adhesive layer laminated on the support; a first barrier layer laminated on the adhesive layer; a second barrier layer laminated on the first barrier layer; and a protective layer formed of a coating liquid that contains a polyvalent metal compound, a polyester based resin, and a dispersant that is a sodium salt of a polycarboxylic acid based resin, the protective layer being laminated on the second barrier layer. In the gas-barrier packaging material, the protective layer contains the polyvalent metal compound by about 40 to 90 wt % relative to 100 wt % of the protective layer. When the second barrier layer is separated and an infrared absorption spectrum of the second barrier layer after separation is measured by a transmission method, a ratio between a maximum peak height ? in a range of about 1,490 to about 1,659 cm?1 and a maximum peak height ? in a range of about 1,660 to about 1,750 cm?1 as expressed by ?/? is less than about one.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: December 11, 2018
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Noboru Omori, Katsumi Kawaguchi
  • Publication number: 20160341201
    Abstract: A magnetic pump includes a front casing including: a shaft supporting body that supports a leading end of a supporting shaft; and a plurality of supporting legs that extends toward an inner wall of a suction port from the shaft supporting body, and that supports the shaft supporting body in the suction port. In the magnetic pump, a leading end of the shaft supporting body is positioned further toward the inlet side of the suction port than a connecting section between the inner wall of the suction port and the supporting leg.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 24, 2016
    Applicant: IWAKI CO., LTD.
    Inventors: Hiroyuki KAWAI, Katsumi KAWAGUCHI, Toshinori YANAGIHARA
  • Publication number: 20160237557
    Abstract: A gas-barrier laminate film (5) which includes a film base material (1), a layer (2) that contains an inorganic compound (A) and is formed on one surface of the film base material, and two layers formed on the layer that contains the inorganic compound (A) so as to be adjacent to each other, wherein the two layers are made up of a layer (3) that contains a carboxylic acid polymer (B) and a layer (4) that contains at least one selected from a group consisting of a silicon compound (C) represented by the following general formula (I) and a hydrolysate thereof, and a vinyl alcohol polymer (D): Si(OR1)4??(I) (where R1 represents an alkyl group with 1-4 carbon atoms, and the four R1s may be identical or different).
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Iori TAKEUCHI, Masayuki KASHIMURA, Katsumi KAWAGUCHI
  • Publication number: 20160229605
    Abstract: A gas barrier packaging material precursor, includes a support; an adhesion layer on one surface of the support; and a barrier layer and a protective layer formed adjacent each other on the adhesion layer. The adhesion layer contains a silicon compound composite. The protective layer is formed of a coating liquid containing a polyvalent metal compound, a polyester resin, and a dispersant, with the polyvalent metal compound being about 40 to about 90 mass % relative to 100 mass % . When the barrier layer is separated from the gas barrier packaging material precursor to measure an infrared absorption spectrum of the barrier layer by a transmission method, a ratio (?/?) of a maximum peak height (?) of absorbance in a range of about 1490 to about 1659 cm?1 to a maximum peak height (?) of absorbance in a range of about 1660 to about 1750 cm?1 is less than about 1.
    Type: Application
    Filed: April 21, 2016
    Publication date: August 11, 2016
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Noboru OMORI, Haruka OMORI, Katsumi KAWAGUCHI
  • Publication number: 20160075910
    Abstract: A gas-barrier packaging material including: a support; an adhesive layer laminated on the support; a first barrier layer laminated on the adhesive layer; a second barrier layer laminated on the first barrier layer; and a protective layer formed of a coating liquid that contains a polyvalent metal compound, a polyester based resin, and a dispersant that is a sodium salt of a polycarboxylic acid based resin, the protective layer being laminated on the second barrier layer. In the gas-barrier packaging material, the protective layer contains the polyvalent metal compound by about 40 to 90 wt % relative to 100 wt % of the protective layer. When the second barrier layer is separated and an infrared absorption spectrum of the second barrier layer after separation is measured by a transmission method, a ratio between a maximum peak height ? in a range of about 1,490 to about 1,659 cm?1 and a maximum peak height ? in a range of about 1,660 to about 1,750 cm?1 as expressed by ?/? is less than about one.
    Type: Application
    Filed: November 27, 2015
    Publication date: March 17, 2016
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Noboru OMORI, Katsumi KAWAGUCHI
  • Publication number: 20150232683
    Abstract: This coating solution for a gas barrier contains an ammonium salt (A) of a polymer having a carboxyl group, a particulate multivalent metallic compound (B), and water, the content of the multivalent metallic compound (B) being about 0.5-2.0 times the chemical equivalent of the ammonium salt (A), and the mean particle diameter of the multivalent metallic compound (B) being about 4 ?m or less.
    Type: Application
    Filed: May 6, 2015
    Publication date: August 20, 2015
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Chisato OTO, Katsumi KAWAGUCHI
  • Patent number: 8808816
    Abstract: Gas-barrier multilayer structures and gas-barrier shaped articles are sufficiently prevented from clouding even when exposed to cold water at 30° C. or below and have excellent gas barrier properties. Processes for producing such gas-barrier multilayer structures, and coating liquids (A) of excellent coating properties that are used to produce the multilayer structures are also provided. A coating liquid (A) includes a solvent mixture of water and an organic solvent and a polycarboxylic acid polymer partially neutralized with a polyvalent metal wherein the polymer is both dissolved and dispersed as particles in the solvent mixture and wherein the particles dispersed account for 5 to 80 wt% of 100 wt% of the polycarboxylic acid polymer partially neutralized with a polyvalent metal.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 19, 2014
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Masahiro Yamazaki, Chisato Fujimura, Katsumi Kawaguchi
  • Patent number: 8642146
    Abstract: Provided are aqueous coating liquids that contain ultrafine inorganic compound particles with good dispersibility, and gas barrier laminates of excellent transparency and gas barrier properties that have a layer formed from the coating liquid. The coating liquid includes ultrafine inorganic compound particles, a polyester resin, a sodium polycarboxylate and water. The gas barrier laminate includes a substrate and a gas barrier layer formed on the substrate, wherein the gas barrier layer has a layer (A) formed from the coating liquid and a layer (B) containing a polycarboxylic acid polymer.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: February 4, 2014
    Inventors: Chisato Fujimura, Masayuki Kashimura, Katsumi Kawaguchi
  • Patent number: 8383245
    Abstract: Gas barrier multilayer structure precursors are not clouded even when exposed to cold water and have excellent abuse resistance. Gas barrier multilayer structures are obtained from the gas barrier multilayer structure precursors. A gas barrier multilayer structure precursor includes a support and a gas barrier layer precursor formed on the support, the gas barrier layer precursor including a layer (A) and a layer (B), the layer (A) including a polycarboxylic acid polymer and a silicon-containing compound (i) derived from a silane coupling agent represented by Formula (1) below, the weight ratio of the polycarboxylic acid polymer and the silicon-containing compound (i) being in the range of 99.5:0.5 to 80.0:20.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: February 26, 2013
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Yusaku Inaba, Chisato Fujimura, Yuka Noguchi, Katsumi Kawaguchi
  • Publication number: 20110217561
    Abstract: Provided are aqueous coating liquids that contain ultrafine inorganic compound particles with good dispersibility, and gas barrier laminates of excellent transparency and gas barrier properties that have a layer formed from the coating liquid. The coating liquid includes ultrafine inorganic compound particles, a polyester resin, a sodium polycarboxylate and water. The gas barrier laminate includes a substrate and a gas barrier layer formed on the substrate, wherein the gas barrier layer has a layer (A) formed from the coating liquid and a layer (B) containing a polycarboxylic acid polymer.
    Type: Application
    Filed: October 23, 2009
    Publication date: September 8, 2011
    Applicant: KUREHA CORPORATION
    Inventors: Chisato Fujimura, Masayuki Kashimura, Katsumi Kawaguchi
  • Publication number: 20100136350
    Abstract: Gas barrier multilayer structure precursors are not clouded even when exposed to cold water and have excellent abuse resistance. Gas barrier multilayer structures are obtained from the gas barrier multilayer structure precursors. A gas barrier multilayer structure precursor includes a support and a gas barrier layer precursor formed on the support, the gas barrier layer precursor including a layer (A) and a layer (B), the layer (A) including a polycarboxylic acid polymer and a silicon-containing compound (i) derived from a silane coupling agent represented by Formula (1) below, the weight ratio of the polycarboxylic acid polymer and the silicon-containing compound (i) being in the range of 99.5:0.5 to 80.0:20.
    Type: Application
    Filed: May 22, 2008
    Publication date: June 3, 2010
    Applicant: KUREHA CORPORATION
    Inventors: Yusaku Inaba, Chisato Fujimura, Yuka Noguchi, Katsumi Kawaguchi
  • Publication number: 20100068438
    Abstract: Gas-barrier multilayer structures and gas-barrier shaped articles are sufficiently prevented from clouding even when exposed to cold water at 30° C. or below and have excellent gas barrier properties. Processes for producing such gas-barrier multilayer structures, and coating liquids (A) of excellent coating properties that are used to produce the multilayer structures are also provided. A coating liquid (A) includes a solvent mixture of water and an organic solvent and a polycarboxylic acid polymer partially neutralized with a polyvalent metal wherein the polymer is both dissolved and dispersed as particles in the solvent mixture and wherein the particles dispersed account for 5 to 80 wt % of 100 wt % of the polycarboxylic acid polymer partially neutralized with a polyvalent metal.
    Type: Application
    Filed: September 28, 2007
    Publication date: March 18, 2010
    Inventors: Masahiro Yamazaki, Chisato Fujimura, Katsumi Kawaguchi
  • Publication number: 20080081140
    Abstract: A draw-forming laminated sheet, comprising: a nonoriented supporting material; a gas-barrier layer precursor, which is layered on at least one surface of the supporting material with an anchor coat layer interposed in between; and a layer formed from a thermoplastic resin, which is disposed on the surface of the gas-barrier layer precursor, wherein the gas-barrier layer precursor includes: a layer (A) formed from a mixture of a polycarboxylic acid-based polymer and a plasticizer; a layer (B) formed from a mixture of a polyvalent metal compound and a binder resin; and a layer (C) which is formed from an ionization-control resin, and which has a thickness of 0.01 ?m to 1 ?m, and the layer (A) and the layer (B) are layered with the layer (C) interposed in between.
    Type: Application
    Filed: September 25, 2007
    Publication date: April 3, 2008
    Inventors: Masayuki Kashimura, Katsumi Kawaguchi
  • Patent number: 6746762
    Abstract: A film selectively permeable to carbon dioxide gas which includes chitosan having a degree of deacetylation of 70 mol % or higher and in which the ratio of the carbon dioxide gas transmission (CO2TR) to the oxygen gas transmission (O2TR), (CO2TR/O2TR), is 15 or higher and a food packaging film made from such a film. The films are insoluble in water, are highly safe from the standpoint of food hygiene, and have such selective gas permeability that the ratio of carbon dioxide gas transmission to oxygen gas transmission is high, which can be economically obtained.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: June 8, 2004
    Assignee: Kureha Chemical Industry Co., Ltd.
    Inventors: Tomonori Hosoda, Hiroyuki Oba, Toru Saika, Katsumi Kawaguchi
  • Patent number: 5476656
    Abstract: Substance BS-3, a polysaccharide, produced by a microorganism belonging to the genus Klebsiella is disclosed, BS-3 having the following properties: main constituting sugar: rhamnose, galactose, glucose, and glucuronic acid; white to pale brown powder; easily soluble in water and sparingly soluble in methanol, ethyl acetate, benzene, etc.; viscosity: 1 to 8,000 cps; molecular weight: 1,000 to 10,000,000; positive in phenol-sulfuric acid reaction, carbazole-sulfuric acid reaction, Molisch's reaction, and ninhydrin reaction. BS-3 is useful as a heat-resistance stabilizer for a fat and oil emulsion and an anti-oxidant for fats and oils in an emulsion and also as an analgesic composition.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: December 19, 1995
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Katsumi Kawaguchi, Eiichi Takahashi, Mitsuhiko Nishiki, Satoshi Fujimoto, Toshiya Kase
  • Patent number: 4983411
    Abstract: This invention relates to a sterilization process for vacuum-packaged raw meat, comprising vacuum-packaging, ultraviolet sterilization and heat shrinkage in sequence.The present invention provides an apparatus comprising an ultraviolet sterilization apparatus and an apparatus for shrinking film packaging material as an embodiment; sterilization effect obtained by means of the apparatus is great and bacteria as well as mold are sterilized. The packaged product does not change color or smell so that it does not lose its value as merchandise. No deterioration about the product could be found.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: January 8, 1991
    Assignee: Kureha Chemical Industry Co., Ltd.
    Inventors: Yoshio Tanaka, Katsumi Kawaguchi